United States Standards for Grades of Pork Carcasses, 48971-48975 [2017-22934]
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Notices
Federal Register
Vol. 82, No. 203
Monday, October 23, 2017
This section of the FEDERAL REGISTER
contains documents other than rules or
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DEPARTMENT OF AGRICULTURE
at the above physical address during
regular business hours.
FOR FURTHER INFORMATION CONTACT:
Bucky Gwartney, International
Marketing Specialist, Standardization
Branch, QAD, LPS, AMS, USDA; 1400
Independence Avenue SW., Room
3932–S, STOP 0258; Washington, DC
20250–0258; phone (202) 720–1424; or
via email at Bucky.Gwartney@
ams.usda.gov.
Section
203(c) of the Agricultural Marketing Act
of 1946, as amended, directs and
authorizes the Secretary of Agriculture
‘‘to develop and improve standards of
quality, condition, quantity, grade, and
packaging and recommend and
demonstrate such standards in order to
encourage uniformity and consistency
in commercial practices’’ (7 U.S.C.
1622(c)). AMS is committed to carrying
out this authority in a manner that
facilitates the marketing of agricultural
commodities. While the pork standards
do not appear in the Code of Federal
Regulations, they—along with other
official standards—are maintained by
USDA at https://www.ams.usda.gov/
grades-standards. Copies of official
standards are also available upon
request. To propose changes to the pork
standards, AMS utilizes the procedures
it published in the August 13, 1997,
Federal Register (62 FR 43439), which
in 7 CFR part 36.
SUPPLEMENTARY INFORMATION:
Agricultural Marketing Service
[Docket No. AMS–LPS–17–0046]
United States Standards for Grades of
Pork Carcasses
Agricultural Marketing Service,
USDA.
ACTION: Notice, request for comments.
AGENCY:
The U.S. Department of
Agriculture’s (USDA) Agricultural
Marketing Service (AMS) is seeking
public comment on revisions to the
United States Standards for Grades of
Pork Carcasses (pork standards). The
last revision to the pork standards
occurred in 1985 and the standards no
longer accurately reflect value
differences in today’s pork products.
Modern pork production is
characterized by products with
improved color and higher marbling
content, two factors that have been
consistently identified by researchers as
the main components affecting pork
eating quality.
DATES: Submit comments on or before
December 22, 2017.
ADDRESSES: Interested persons are
invited to submit comments
electronically at https://
www.regulations.gov. Written comments
should be sent to: Pork Carcass
Revisions, Standardization Branch,
Quality Assessment Division; Livestock
Poultry and Seed Program, AMS, USDA;
1400 Independence Ave. SW., Room
3932–S, STOP 0258; Washington, DC
20250–0258. Comments may also be
emailed to porkcarcassrevisions@
ams.usda.gov. All comments should
reference docket number AMS–LPS–17–
0046, the date of submission, and the
page number of this issue of the Federal
Register. All comments received will be
posted without change, including any
personal information provided, and will
be made available for public inspection
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SUMMARY:
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Background
Official USDA grade standards and
associated voluntary, fee-for-service
grading programs are authorized under
the Agricultural Marketing Act of 1946,
as amended (7 U.S.C. 1621 et seq.). The
primary purpose of USDA grade
standards, including the pork standards,
is to divide the population of a
commodity into uniform groups (of
similar quality, yield, value, etc.) to
facilitate marketing. In concert, the
Federal voluntary, fee-for-service
grading programs are designed to
provide an independent, objective
determination as to whether a given
product is in conformance with the
applicable USDA grade standard. USDA
quality grades provide a simple,
effective means of describing product
that is easily understood by both buyers
and sellers. No voluntary USDA grading
program currently exists for pork
carcasses or parts.
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USDA recognizes that the pork
standards must be relevant to be of
value to stakeholders and, therefore,
recommendations for changes in the
standards may be initiated by USDA or
by interested parties at any time to
achieve that goal. The pork standards
were first developed in the early 1930s,
with revisions over the years to reflect
improvements made in the industry and
changes in the marketplace. The current
pork standards were last updated in
1985 and are based on a combination of
muscle and fat thickness (including
belly) that is then formulated into an
expected percent yield. In the late 1980s
and early 1990s, the pork industry
reacted to growing consumer demand
for increased leanness of pork cuts,
investing in changes to meet this
demand primarily by means of
improved genetics and swine diet
formulations. By the early 2000s, the
pork industry had become so proficient
at producing consistently lean pork that
additional leanness in pork would begin
to degrade other consumer desires
related to pork quality.
In contrast to decades past, modern
consumers have shifted away from
prioritizing leanness as the primary
attribute in selecting pork for purchase.
Instead, today’s consumers seek high
quality marbling (fat streaking within
the cut of meat) for superior taste. In
addition, consumers are increasingly
demanding consistency in pork
products in terms of other quality
attributes, in particular in color of the
lean.
Pork Quality Initiative
Standards for grades enable buyers to
obtain product that meets their
individual needs, such as a restaurant
choosing the highest quality pork to
provide its customers a very consistent
level of palatability. At the same time,
standards for grades are important in
transmitting information to producers to
help ensure informed decisions are
made. For example, the market
preference and price paid for a
particular grade of pork could be
communicated to producers so they can
adjust their production accordingly. In
such a case, if the price premium being
paid for a high grade of pork merits
producers making the investments
required in genetics and feeding to
produce more of that grade, such
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marketing decisions can be made with
justification.
The underlying interest in a potential
pork quality grading system is not new
to the industry. Many studies have
measured pork populations and
measured their innate quality
characteristics. A study by Cannon et.
al., 1996,1 showed that up to 10 percent
of the carcasses evaluated in a
nationwide audit had pale, soft, and
exudative (PSE) characteristics,
resulting in significant potential losses
for the pork chain. In the 2002–2003
Benchmarking Value in the Pork Supply
Chain project, Meisinger, 2003,2 noted,
‘‘Industry must develop clear economic
signals for easily and objectively
measuring ‘quality’ along the
production chain to facilitate
coordinated focus on generating pork to
meet domestic and global, seasonal and
geographical, consumer demands for
fresh, enhanced, processed, consumerfriendly, value-added, and ready-to-eat
products.’’ In 1998, the National Pork
Producers Council 3 published color and
marbling guidelines for pork products.
According to these guidelines, a quality
pork product with good eating quality
should be in the color range of 3 to 5
(the entire range is 1–6) and have a
marbling range of 2 to 4 (the entire range
is 1–10). Recently, the National Pork
Board updated those goals and stated
that by 2020, the percentage of pork loin
chops scoring below a color score of 3
would be reduced by 10 percentage
points (from 55 to 45 percent), as
compared with the 2012 retail study.
The pork industry and the academic
community have long used several
parameters to measure quality
characteristics, including color and
marbling scores, pH, tenderness, and
drip loss, with the intent of ultimately
improving these characteristics over
time. More recent attention has focused
on the use of color and marbling, in
combination, to segregate pork into like
quality groupings that would deliver a
more consistent, palatable product.
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Evolution of the Pork Standards
Tentative standards for grades of pork
carcasses and fresh pork cuts were
issued by USDA in 1931 and slightly
revised in 1933. New standards for
1 Cannon, J.E., J.B. Morgan, F.K. McKeith, G.C.
Smith, S. Sonka, J. Heavner and D.L. Meeker. 1996.
Pork chain quality audit survey: Quantification of
pork quality characteristics. J. Muscle Foods 7, 29–
44.
2 Meisinger, D.J. 2003. The national pork quality
benchmarking study. Proceedings abstracts of the
56th American Meat Science Association
Reciprocal Meat Conference. Columbia, MO.
3 National Pork Producers Council Pork Quality
Solutions Team. 1998. Pork Quality Targets. In Pork
Facts. #04366—10/98. NPPC. Des Moines, IA.
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grades of barrow and gilt carcasses were
proposed by USDA in 1949. These
standards represented the first
application of objective measurements
as guides to grades for pork carcasses.
Slight revisions were made in the
proposed standards prior to their
adoption as the Official United
Standards for Grades of Barrow and Gilt
Carcasses, effective September 12, 1952.
The official standards were amended
in July 1955, by changing the grade
designations Choice No. 1, Choice No. 2,
and Choice No. 3, to U.S. No. 1, U.S. No.
2, and U.S. No. 3, respectively. In
addition, the backfat specifications were
reworded slightly to reflect the reduced
fat thickness requirements and to allow
more uniform interpretation of the
standards.
On April 1, 1968, the official
standards were again revised to reflect
the improvements made since 1955 in
pork carcasses. The minimum backfat
thickness requirement for the U.S. No.
1 grade was eliminated and a new U.S.
No. 1 grade was established to properly
identify the superior pork carcasses then
being produced. The former No. 1, No.
2, and No. 3 grades were renamed No.
2, No. 3, and No. 4, respectively. The
former Medium and Cull grades were
combined and renamed U.S. Utility.
Also, the maximum allowable
adjustment for variations-from-normal
fat distribution and muscling was
changed from one-half to one full grade
to more adequately reflect the effect of
these factors on yields of cuts.
In addition, the text of the
‘‘Application of Standards’’ section was
reworded to more clearly define the
grade factors and clarify their use in
determining the grade. On January 14,
1985, the barrow and gilt carcass grade
standards were once again updated to
reflect improvements in pork carcasses
and changes in the pork slaughter
industry since 1968.4 A 1980 grade
survey found that over 70 percent of the
pork carcasses being produced were in
the U.S. No. 1 grade, indicating a large
amount of variation in yield that was
not being accounted for by the grades.
The changes simplified the standards by
basing the grade on the backfat
thickness over the last rib with a single
adjustment for muscling. In addition,
the grade lines were tightened to more
adequately sort the pork carcasses being
produced among several grades. Some
minor changes in the wording of the
quality requirements were also made.
4 USDA, 1985. Official United States standards for
grades of pork carcasses. Agricultural Marketing
Service, United States Dept. Agric., Washington,
DC.
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Between 1985 and today, the pork
industry and the pork carcasses and
products that it produces have
undergone significant change. The pork
industry reacted to the consumer
demand for leaner pork by making
changes in genetics and nutrition.
Unfortunately, during that period when
production strategies focused on
producing leaner pork, marbling and
color became less important. However,
research indicates that today’s
consumers are interested in a more
consistent pork product with a greater
focus on marbling and the color of the
products. The pork industry is working
to meet this demand, again by making
changes within the genetic and nutrition
systems.
The use of the current USDA pork
grade standards in an official capacity
has been non-existent since the mid1970s, and the ability to differentiate
pork into quality groupings and values
has been a critical missing link. In the
absence of a meaningful USDA pork
grade standard, pork packers and
processors have taken the initiative to
sort the darker colored, higher-marbling
pork for many export markets where
demand is extremely high and
associated price premiums exist. They
also have developed branded programs
with selection criteria that use both
color and marbling to identify premium
pork products. These programs
generally seek higher color scores (4–5)
and marbling scores (3–5).
Today’s Quality Attributes
The U.S. is the second largest pork
producing country in the world. Its
production exceeds domestic
consumption and, therefore, products
need to be exported. Exports have
continued to increase, with many
markets demanding high quality pork
that has certain color and marbling
characteristics. These quality
characteristics have been routinely used
in processing plants to sort the higher
quality pork for both export and for
foodservice establishments that are
demanding these traits. A revision to the
grade standards is needed that reflects a
new population of pork products that
have better color and a higher marbling
content, and is able to differentiate
products into quality categories that can
fill the demand in many different
market segments. These two factors
have been consistently identified by
numerous researchers as the
components affecting pork eating
quality, as verified through checkofffunded research.
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In one consumer study (Pork Quality
Insights, 2014 5) that looked at purchase
criteria for fresh pork, the data showed
that ‘‘quality and freshness’’ and color
were key factors in fresh pork
purchases. In general, consumers related
a darker color to a higher quality
product. Another study (Lusk et al.,
2016 6) looked at how consumers value
pork chop quality information. It found
that the majority of the consumers used
chop color to assess quality and said
that color is more important than
marbling. However, 30 to 40 percent of
consumers misperceived lighter, lower
quality pork products to be of higher
quality than they actually were.
Furthermore, when consumers
evaluated pork chop products based on
quality levels, the products bearing
quality grades using Prime, Choice, and
Select tended to generate higher sales
and, therefore, more revenue for the
chop producers. However, when
presented with lighter-colored, lower
quality pork chop products, 20 to 30
percent of consumers still preferred
these products based on their lighter
color, even when these products
conspicuously bore a USDA quality
label indicating that they were lower
quality. Therefore, color may be more
influential than a grade level in some
consumer decision making, which
indicates that there are key
opportunities within a revised pork
quality standard to highlight the
importance of color.
Recent research by Newman et al.,
2015,7 as part of a National Retail
Benchmarking audit, indicated that the
quality of loin chops at retail was
inconsistent and needed improvement.
The range in color score for the retail
chops was 1 to 6 with an average of
slightly above 3. In addition, marbling
scores also ranged from 1 to 6 with 2.5
as an average. An analysis of the data
after they were sorted into various color
and marbling combinations resulted in
the following break points: HIGH—
Color 4–5, Marbling ≥4; MEDIUM—
Color 3, Marbling ≥3; LOW—Color 2,
Marbling ≥2. These would result in the
following percentages of the retail
population: 2.1, 45.1, and 22,
respectively. The pork population
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5 Pork
Insights. 2014. Prepared for the National
Pork Board.
6 Lusk, J., G. Tonsor, T. Schroeder and D. Hayes.
2016. Consumer Valuation of Pork Chop Quality
Information. Prepared for the National Pork Board.
This study also found that taste was the most
important attribute for consumers when purchasing
chops.
7 Newman, D. 2015. National pork retail
benchmarking study. National Pork Board Research
abstract: #11–163.
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studied by Moeller, 2008,8 also showed
a range and average for color and
marbling scores similar to that found in
the retail benchmarking study. There is
evidence that the color and marbling
score averages and the percentages in
the total population would be higher
without the exclusion of products being
sorted for quality branded programs and
sold at foodservice establishments or
being exported from this data set.
A study by Tonsor et al., 2013,9
looked at the important criteria needed
for a viable, trusted pork quality grading
system. The research indicates that a
quality grading system would need to
focus on product attributes that can be
measured accurately and objectively at
the speed of commerce (e.g., plant line
speeds), facilitate product sorting by
grade, relate directly to those product
characteristics valued by buyers and
consumers, and be trusted by potential
users. In addition, a well-functioning
pork quality grade system would
provide important economic signals to
the industry and encourage the
production of higher quality pork
products. These improvements would
also lead to increased demand for pork,
both domestically and internationally.
A working example of these criteria is
the USDA beef quality grading system.
The beef quality grade standards are
widely adopted by the beef industry and
are globally recognized. The USDA
Prime and Choice beef grades are widely
recognized by consumers, both
domestically and abroad, as premium
products that demand a higher value
and also deliver a consistent eating
experience. These grade groupings also
result in an economic signal that is sent
up and down the beef products chain,
affecting the way producers implement
genetic and nutritional changes. In
addition, the adoption of instrument
grading technologies has allowed the
industry and USDA graders to stay in
tune with plant line speeds and
demands for consistent grade
application.
The accurate measurement of color
and marbling scores is important for a
pork quality grading system. Published
color and marbling scorecards and
visual aids have been a primary
subjective method for putting pork
8 Moeller, S.J., R. Miller and H. Zerby. 2008.
Effects of pork quality and cooked temperature on
consumer and trained sensory perception of eating
quality in no-enhanced and enhanced pork loins.
National Pork Board Research abstract: #06–139 and
#07–005.
9 Tonsor, G.T., and T.C. Schroeder. 2013.
‘‘Economic Needs Assessment: Pork Quality
Grading System.’’ Available at: https://
www.agmanager.info/ag-policy/livestock-policy/
economicneeds-assessment-pork-quality-gradingsystem.
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quality into categories, whether for
research trials or at processing plants.
Color evaluation has been performed
using one of many objective color
analyses. There has also been recent
research on the ability to objectively
measure pork quality through
instrumentation. In a large modern pork
processing facility, some form of
instrumentation would be needed for
pork quality evaluation at current line
speeds.
The National Pork Board has
indicated it is in the process of revising
the current pork color and marbling
score cards.10 These cards will most
likely contain additional information
regarding the color parameters for each
color range and would still be based on
a 10th rib cross-section of the
longissimus dorsi. The challenge with
having this measurement location is that
most processing facilities do not make
that cross-section cut, and therefore it
cannot be measured. Homm, et al.,
2006,11 evaluated the influence of chop
location on subsequent color and
marbling scores. They found that color
and marbling were consistent with the
central portions of the loin. There was
more variability in the anterior and
posterior portions, with anterior chops
being generally darker, posterior chops
generally lighter, and both ends having
more marbling than centrally located
chops. These results indicated that the
location being measured for color and
marbling is important and could be
problematic when a 10th rib crosssection is not available. Current research
being done with various instrumental
measurements is showing promise in
measuring lean color and marbling
along the ventral portion of the loin
where the back ribs have been removed,
which could become a reliable indicator
for color and marbling levels.
Proposed Changes to the Pork
Standards
Printed below beginning with section
54.131 is the proposed text for a revised
pork standard. While the preamble
describing the history of the standards
is not reprinted here, the body of the
actual proposed standard (sections
54.131 through 54.135) is shown in its
entirety. Should any updates to the pork
standard occur, the preamble will be
updated accordingly. The current
standard, including the preamble, can
be viewed at https://www.ams.usda.gov/
10 National Pork Producers Council (NPPC). 1999.
Official color and marbling standards. NPPC, Des
Moines, IA.
11 Homm, J.W., A.T. Waylan, J.A. Unruh, and R.C.
Johnson. 2006. Influence of chop location within a
loin on boneless pork longissimus quality. J. Muscle
Foods 17, 221–236.
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sites/default/files/media/Pork_
Standard%5B1%5D.pdf.
As discussed, the proposed revised
standard identifies marbling and color
as the primary considerations for quality
designations, instead of lean/fat and
yield as exists in the current standard.
Further, the proposed revised standard
excludes the provision for grading of
sow carcasses, maintaining the official
standards for barrows and gilts only.
§ 54.131
Scope
The standards for grades of pork are
written primarily in terms of carcasses.
However, they also are applicable to the
grading of sides and primal cuts, such
as the ham, loin, or shoulder. To
simplify the phrasing of the standards,
the words ‘‘carcass’’ and ‘‘carcasses’’ are
used also to mean ‘‘side’’ or ‘‘sides.’’
§ 54.132 Bases for Pork Carcass
Standards
The official standards for pork carcass
grades provide for segregation according
to (a) class, as determined by the
apparent sex condition of the animal at
the time of slaughter, and (b) grade,
which reflects the quality of lean in the
carcass. A quality grade applied to a
carcass will be associated with all cuts
for that carcass, as long as the associated
cuts are traceable through fabrication
and labeling.
§ 54.133
Pork Carcass Classes
The five classes of pork carcasses,
comparable to the same five classes of
slaughter hogs, are: barrow, gilt, sow,
stag, and boar. The official pork quality
standards provide for the grading of
barrow and gilt carcasses; grades are not
provided for sow, stag, or boar
carcasses.
(a) Barrow. A barrow is a male swine
castrated when young and before
development of the secondary physical
characteristics of a boar.
(b) Gilt. A gilt is a young female swine
that has not produced young and has
not reached an advanced stage of
pregnancy.
(c) Sow. A sow is a mature female
swine that usually shows evidence of
having reproduced or having reached an
advanced stage of pregnancy.
(d) Boar. A boar is an uncastrated
male swine.
(e) Stag. A stag is a male swine
castrated after development or
beginning of development of the
secondary physical characteristics of a
boar. Typical stags are somewhat coarse
and lack balance—the head and
shoulders are more fully developed than
the hindquarter parts, bones and joints
are large, the skin is thick and rough,
and the hair is coarse.
§ 54.134 Application of Standards for
Grades of Barrow and Gilt Carcasses
(a) Grades for barrow and gilt
carcasses are based on two general
quality characteristics (1) the color of
the exposed lean and (2) the amount of
marbling associated with the lean.
(b) There are three general levels of
quality recognized: (1) Prime, Choice,
and Select. The quality (color and
marbling) of the lean is best evaluated
by a direct observation of its
characteristics in the cut surface of the
longissimus dorsi. Quality of the lean is
described in terms of characteristics of
the longissimus dorsi, at either the 10th
rib cross-section or other cross-sections
within the loin that expose a surface of
the longissimus dorsi for evaluation, or
the exposed lean on the ventral side of
the boneless loin after removal of the
back ribs. The surface area of the
longissimus dorsi should be at least 4
square inches to be acceptable for
evaluating color and marbling
characteristics.
(c) USDA uses photographs and other
objective aids or devices designated by
the Agricultural Marketing Service
(AMS) in the correct interpretation and
application of the standards.12 Official
pork color and marbling standards are
maintained by the National Pork Board
and will be used as official references
for the USDA pork quality grades.
Objective aids can also include
predictive instrumentation technologies
that evaluate color and/or marbling
scores and meet thresholds for accuracy
and precision of the predictions.
(d) To determine the grade of a
carcass, the longissimus dorsi must be
present at a minimum of 4 square inches
and exposed for subjective and/or
objective evaluation to allow a visual or
instrumental assessment of color and
marbling levels. This exposure can be
done multiple ways:
(1) Exposing a cross-section of the
longissimus dorsi at the 10th rib, or
other location between approximately
the 4th rib, posterior to the scapula
(blade bone), and the longissimus dorsi
cross-section anterior to the ilium (hip
bone), or
(2) Exposing the longissimus dorsi on
the ventral side of the boneless loin after
removal of the back ribs.
Carcasses not presented in one of these
manners are not eligible for quality
grading.
For barrow and gilt carcasses, the cut
surface of the longissimus dorsi shall be,
at a minimum, slightly firm to be
assessed for color and marbling levels.
Lean firmness is essential for both the
eating experience and in the fabrication
process. Barrow and gilt carcasses
meeting the minimum lean firmness are
eligible to be graded on color and
marbling levels. Barrow and gilt
carcasses having less than slightly firm
lean are not eligible for pork quality
grading.
For barrow and gilt carcasses, quality
of the lean is evaluated by considering
its color and marbling in a cut
longissimus dorsi surface. Barrow and
gilt carcasses will be assessed for their
color and marbling levels based on the
published standards by the National
Pork Board. The color levels are
evaluated on a scale from one to six and
the marbling levels are evaluated on a
scale of one to ten.
The firmness requirement of slightly
firm is the same for all grades and a
minimum requirement for application of
a grade, regardless of the extent to
which marbling may exceed the
minimum of a grade.
§ 54.135 Specifications for Official
United States Standards for Grades of
Barrow and Gilt Carcasses
(a) The quality grade of a barrow or
gilt carcass is determined on the basis
of the following: lean color score and
lean marbling score.
The relationship between color,
marbling, and quality grade is shown in
Table 1.
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TABLE 1—PORK CARCASS QUALITY GRADE BASED ON LEAN COLOR AND MARBLING 13
Lean color
score
Quality grade
USDA Prime ..............................................................................................................................
USDA Choice .............................................................................................................................
12 Information concerning such devices and their
use may be obtained from AMS’ Livestock, Poultry,
and Seed Program.’’
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4–5
3
Lean marbling score
Greater than or equal to 4.
Greater than or equal to 2.
13 Carcasses with less than slightly firm lean are
not eligible for quality grading.
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48975
TABLE 1—PORK CARCASS QUALITY GRADE BASED ON LEAN COLOR AND MARBLING 13—Continued
Lean color
score
Quality grade
USDA Select ..............................................................................................................................
(b) The following descriptions
provide a guide to the characteristics of
barrow and gilt carcasses in each grade.
(1) USDA Prime—Barrow and gilt
carcasses in this grade have at least a
slightly firm lean, a color score of 4 or
5, and a marbling score of 4 or greater.
(2) USDA Choice—Barrow and gilt
carcasses in this grade have at least a
slightly firm lean, a color score of 3, and
a marbling score of 2 or greater.
(3) USDA Select—Barrow and gilt
carcasses in this grade have at least a
slightly firm lean, a color score of 2, and
a marbling score of 2 or greater.
Request for Comments
AMS is soliciting comments from
stakeholders about potential changes to
the U.S. Standards for Grades of Pork
Carcasses. This could also include any
current and/or on-going research or
industry practice that has relevance to
this standard. AMS also invites
comments about how those changes
would be implemented in a voluntary
pork grading system.
Dated: October 18, 2017.
Bruce Summers,
Acting Administrator, Agricultural Marketing
Service.
[FR Doc. 2017–22934 Filed 10–20–17; 8:45 am]
BILLING CODE 3410–02–P
DEPARTMENT OF AGRICULTURE
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Title: Assessing the Child Nutrition
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State Administrative Expense (SAE)
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SAE funds are appropriated annually to
PO 00000
Frm 00005
Fmt 4703
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Lean marbling score
2
Greater than or equal to 2.
USDA FNS under the authority of
Section 7(a) of the Child Nutrition Act
of 1966. The Act sets forth the total
amount of funds available for SAE and
a formula for allocating the majority of
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[FR Doc. 2017–22925 Filed 10–20–17; 8:45 am]
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Information Collection Activity;
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[Federal Register Volume 82, Number 203 (Monday, October 23, 2017)]
[Notices]
[Pages 48971-48975]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2017-22934]
========================================================================
Notices
Federal Register
________________________________________________________________________
This section of the FEDERAL REGISTER contains documents other than rules
or proposed rules that are applicable to the public. Notices of hearings
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========================================================================
Federal Register / Vol. 82, No. 203 / Monday, October 23, 2017 /
Notices
[[Page 48971]]
DEPARTMENT OF AGRICULTURE
Agricultural Marketing Service
[Docket No. AMS-LPS-17-0046]
United States Standards for Grades of Pork Carcasses
AGENCY: Agricultural Marketing Service, USDA.
ACTION: Notice, request for comments.
-----------------------------------------------------------------------
SUMMARY: The U.S. Department of Agriculture's (USDA) Agricultural
Marketing Service (AMS) is seeking public comment on revisions to the
United States Standards for Grades of Pork Carcasses (pork standards).
The last revision to the pork standards occurred in 1985 and the
standards no longer accurately reflect value differences in today's
pork products. Modern pork production is characterized by products with
improved color and higher marbling content, two factors that have been
consistently identified by researchers as the main components affecting
pork eating quality.
DATES: Submit comments on or before December 22, 2017.
ADDRESSES: Interested persons are invited to submit comments
electronically at https://www.regulations.gov. Written comments should
be sent to: Pork Carcass Revisions, Standardization Branch, Quality
Assessment Division; Livestock Poultry and Seed Program, AMS, USDA;
1400 Independence Ave. SW., Room 3932-S, STOP 0258; Washington, DC
20250-0258. Comments may also be emailed to
[email protected]. All comments should reference docket
number AMS-LPS-17-0046, the date of submission, and the page number of
this issue of the Federal Register. All comments received will be
posted without change, including any personal information provided, and
will be made available for public inspection at the above physical
address during regular business hours.
FOR FURTHER INFORMATION CONTACT: Bucky Gwartney, International
Marketing Specialist, Standardization Branch, QAD, LPS, AMS, USDA; 1400
Independence Avenue SW., Room 3932-S, STOP 0258; Washington, DC 20250-
0258; phone (202) 720-1424; or via email at
[email protected].
SUPPLEMENTARY INFORMATION: Section 203(c) of the Agricultural Marketing
Act of 1946, as amended, directs and authorizes the Secretary of
Agriculture ``to develop and improve standards of quality, condition,
quantity, grade, and packaging and recommend and demonstrate such
standards in order to encourage uniformity and consistency in
commercial practices'' (7 U.S.C. 1622(c)). AMS is committed to carrying
out this authority in a manner that facilitates the marketing of
agricultural commodities. While the pork standards do not appear in the
Code of Federal Regulations, they--along with other official
standards--are maintained by USDA at https://www.ams.usda.gov/grades-standards. Copies of official standards are also available upon
request. To propose changes to the pork standards, AMS utilizes the
procedures it published in the August 13, 1997, Federal Register (62 FR
43439), which in 7 CFR part 36.
Background
Official USDA grade standards and associated voluntary, fee-for-
service grading programs are authorized under the Agricultural
Marketing Act of 1946, as amended (7 U.S.C. 1621 et seq.). The primary
purpose of USDA grade standards, including the pork standards, is to
divide the population of a commodity into uniform groups (of similar
quality, yield, value, etc.) to facilitate marketing. In concert, the
Federal voluntary, fee-for-service grading programs are designed to
provide an independent, objective determination as to whether a given
product is in conformance with the applicable USDA grade standard. USDA
quality grades provide a simple, effective means of describing product
that is easily understood by both buyers and sellers. No voluntary USDA
grading program currently exists for pork carcasses or parts.
USDA recognizes that the pork standards must be relevant to be of
value to stakeholders and, therefore, recommendations for changes in
the standards may be initiated by USDA or by interested parties at any
time to achieve that goal. The pork standards were first developed in
the early 1930s, with revisions over the years to reflect improvements
made in the industry and changes in the marketplace. The current pork
standards were last updated in 1985 and are based on a combination of
muscle and fat thickness (including belly) that is then formulated into
an expected percent yield. In the late 1980s and early 1990s, the pork
industry reacted to growing consumer demand for increased leanness of
pork cuts, investing in changes to meet this demand primarily by means
of improved genetics and swine diet formulations. By the early 2000s,
the pork industry had become so proficient at producing consistently
lean pork that additional leanness in pork would begin to degrade other
consumer desires related to pork quality.
In contrast to decades past, modern consumers have shifted away
from prioritizing leanness as the primary attribute in selecting pork
for purchase. Instead, today's consumers seek high quality marbling
(fat streaking within the cut of meat) for superior taste. In addition,
consumers are increasingly demanding consistency in pork products in
terms of other quality attributes, in particular in color of the lean.
Pork Quality Initiative
Standards for grades enable buyers to obtain product that meets
their individual needs, such as a restaurant choosing the highest
quality pork to provide its customers a very consistent level of
palatability. At the same time, standards for grades are important in
transmitting information to producers to help ensure informed decisions
are made. For example, the market preference and price paid for a
particular grade of pork could be communicated to producers so they can
adjust their production accordingly. In such a case, if the price
premium being paid for a high grade of pork merits producers making the
investments required in genetics and feeding to produce more of that
grade, such
[[Page 48972]]
marketing decisions can be made with justification.
The underlying interest in a potential pork quality grading system
is not new to the industry. Many studies have measured pork populations
and measured their innate quality characteristics. A study by Cannon
et. al., 1996,\1\ showed that up to 10 percent of the carcasses
evaluated in a nationwide audit had pale, soft, and exudative (PSE)
characteristics, resulting in significant potential losses for the pork
chain. In the 2002-2003 Benchmarking Value in the Pork Supply Chain
project, Meisinger, 2003,\2\ noted, ``Industry must develop clear
economic signals for easily and objectively measuring `quality' along
the production chain to facilitate coordinated focus on generating pork
to meet domestic and global, seasonal and geographical, consumer
demands for fresh, enhanced, processed, consumer-friendly, value-added,
and ready-to-eat products.'' In 1998, the National Pork Producers
Council \3\ published color and marbling guidelines for pork products.
According to these guidelines, a quality pork product with good eating
quality should be in the color range of 3 to 5 (the entire range is 1-
6) and have a marbling range of 2 to 4 (the entire range is 1-10).
Recently, the National Pork Board updated those goals and stated that
by 2020, the percentage of pork loin chops scoring below a color score
of 3 would be reduced by 10 percentage points (from 55 to 45 percent),
as compared with the 2012 retail study. The pork industry and the
academic community have long used several parameters to measure quality
characteristics, including color and marbling scores, pH, tenderness,
and drip loss, with the intent of ultimately improving these
characteristics over time. More recent attention has focused on the use
of color and marbling, in combination, to segregate pork into like
quality groupings that would deliver a more consistent, palatable
product.
---------------------------------------------------------------------------
\1\ Cannon, J.E., J.B. Morgan, F.K. McKeith, G.C. Smith, S.
Sonka, J. Heavner and D.L. Meeker. 1996. Pork chain quality audit
survey: Quantification of pork quality characteristics. J. Muscle
Foods 7, 29-44.
\2\ Meisinger, D.J. 2003. The national pork quality benchmarking
study. Proceedings abstracts of the 56th American Meat Science
Association Reciprocal Meat Conference. Columbia, MO.
\3\ National Pork Producers Council Pork Quality Solutions Team.
1998. Pork Quality Targets. In Pork Facts. #04366--10/98. NPPC. Des
Moines, IA.
---------------------------------------------------------------------------
Evolution of the Pork Standards
Tentative standards for grades of pork carcasses and fresh pork
cuts were issued by USDA in 1931 and slightly revised in 1933. New
standards for grades of barrow and gilt carcasses were proposed by USDA
in 1949. These standards represented the first application of objective
measurements as guides to grades for pork carcasses. Slight revisions
were made in the proposed standards prior to their adoption as the
Official United Standards for Grades of Barrow and Gilt Carcasses,
effective September 12, 1952.
The official standards were amended in July 1955, by changing the
grade designations Choice No. 1, Choice No. 2, and Choice No. 3, to
U.S. No. 1, U.S. No. 2, and U.S. No. 3, respectively. In addition, the
backfat specifications were reworded slightly to reflect the reduced
fat thickness requirements and to allow more uniform interpretation of
the standards.
On April 1, 1968, the official standards were again revised to
reflect the improvements made since 1955 in pork carcasses. The minimum
backfat thickness requirement for the U.S. No. 1 grade was eliminated
and a new U.S. No. 1 grade was established to properly identify the
superior pork carcasses then being produced. The former No. 1, No. 2,
and No. 3 grades were renamed No. 2, No. 3, and No. 4, respectively.
The former Medium and Cull grades were combined and renamed U.S.
Utility. Also, the maximum allowable adjustment for variations-from-
normal fat distribution and muscling was changed from one-half to one
full grade to more adequately reflect the effect of these factors on
yields of cuts.
In addition, the text of the ``Application of Standards'' section
was reworded to more clearly define the grade factors and clarify their
use in determining the grade. On January 14, 1985, the barrow and gilt
carcass grade standards were once again updated to reflect improvements
in pork carcasses and changes in the pork slaughter industry since
1968.\4\ A 1980 grade survey found that over 70 percent of the pork
carcasses being produced were in the U.S. No. 1 grade, indicating a
large amount of variation in yield that was not being accounted for by
the grades. The changes simplified the standards by basing the grade on
the backfat thickness over the last rib with a single adjustment for
muscling. In addition, the grade lines were tightened to more
adequately sort the pork carcasses being produced among several grades.
Some minor changes in the wording of the quality requirements were also
made.
---------------------------------------------------------------------------
\4\ USDA, 1985. Official United States standards for grades of
pork carcasses. Agricultural Marketing Service, United States Dept.
Agric., Washington, DC.
---------------------------------------------------------------------------
Between 1985 and today, the pork industry and the pork carcasses
and products that it produces have undergone significant change. The
pork industry reacted to the consumer demand for leaner pork by making
changes in genetics and nutrition. Unfortunately, during that period
when production strategies focused on producing leaner pork, marbling
and color became less important. However, research indicates that
today's consumers are interested in a more consistent pork product with
a greater focus on marbling and the color of the products. The pork
industry is working to meet this demand, again by making changes within
the genetic and nutrition systems.
The use of the current USDA pork grade standards in an official
capacity has been non-existent since the mid-1970s, and the ability to
differentiate pork into quality groupings and values has been a
critical missing link. In the absence of a meaningful USDA pork grade
standard, pork packers and processors have taken the initiative to sort
the darker colored, higher-marbling pork for many export markets where
demand is extremely high and associated price premiums exist. They also
have developed branded programs with selection criteria that use both
color and marbling to identify premium pork products. These programs
generally seek higher color scores (4-5) and marbling scores (3-5).
Today's Quality Attributes
The U.S. is the second largest pork producing country in the world.
Its production exceeds domestic consumption and, therefore, products
need to be exported. Exports have continued to increase, with many
markets demanding high quality pork that has certain color and marbling
characteristics. These quality characteristics have been routinely used
in processing plants to sort the higher quality pork for both export
and for foodservice establishments that are demanding these traits. A
revision to the grade standards is needed that reflects a new
population of pork products that have better color and a higher
marbling content, and is able to differentiate products into quality
categories that can fill the demand in many different market segments.
These two factors have been consistently identified by numerous
researchers as the components affecting pork eating quality, as
verified through checkoff-funded research.
[[Page 48973]]
In one consumer study (Pork Quality Insights, 2014 \5\) that looked
at purchase criteria for fresh pork, the data showed that ``quality and
freshness'' and color were key factors in fresh pork purchases. In
general, consumers related a darker color to a higher quality product.
Another study (Lusk et al., 2016 \6\) looked at how consumers value
pork chop quality information. It found that the majority of the
consumers used chop color to assess quality and said that color is more
important than marbling. However, 30 to 40 percent of consumers
misperceived lighter, lower quality pork products to be of higher
quality than they actually were. Furthermore, when consumers evaluated
pork chop products based on quality levels, the products bearing
quality grades using Prime, Choice, and Select tended to generate
higher sales and, therefore, more revenue for the chop producers.
However, when presented with lighter-colored, lower quality pork chop
products, 20 to 30 percent of consumers still preferred these products
based on their lighter color, even when these products conspicuously
bore a USDA quality label indicating that they were lower quality.
Therefore, color may be more influential than a grade level in some
consumer decision making, which indicates that there are key
opportunities within a revised pork quality standard to highlight the
importance of color.
---------------------------------------------------------------------------
\5\ Pork Insights. 2014. Prepared for the National Pork Board.
\6\ Lusk, J., G. Tonsor, T. Schroeder and D. Hayes. 2016.
Consumer Valuation of Pork Chop Quality Information. Prepared for
the National Pork Board. This study also found that taste was the
most important attribute for consumers when purchasing chops.
---------------------------------------------------------------------------
Recent research by Newman et al., 2015,\7\ as part of a National
Retail Benchmarking audit, indicated that the quality of loin chops at
retail was inconsistent and needed improvement. The range in color
score for the retail chops was 1 to 6 with an average of slightly above
3. In addition, marbling scores also ranged from 1 to 6 with 2.5 as an
average. An analysis of the data after they were sorted into various
color and marbling combinations resulted in the following break points:
HIGH--Color 4-5, Marbling [gteqt]4; MEDIUM--Color 3, Marbling [gteqt]3;
LOW--Color 2, Marbling [gteqt]2. These would result in the following
percentages of the retail population: 2.1, 45.1, and 22, respectively.
The pork population studied by Moeller, 2008,\8\ also showed a range
and average for color and marbling scores similar to that found in the
retail benchmarking study. There is evidence that the color and
marbling score averages and the percentages in the total population
would be higher without the exclusion of products being sorted for
quality branded programs and sold at foodservice establishments or
being exported from this data set.
---------------------------------------------------------------------------
\7\ Newman, D. 2015. National pork retail benchmarking study.
National Pork Board Research abstract: #11-163.
\8\ Moeller, S.J., R. Miller and H. Zerby. 2008. Effects of pork
quality and cooked temperature on consumer and trained sensory
perception of eating quality in no-enhanced and enhanced pork loins.
National Pork Board Research abstract: #06-139 and #07-005.
---------------------------------------------------------------------------
A study by Tonsor et al., 2013,\9\ looked at the important criteria
needed for a viable, trusted pork quality grading system. The research
indicates that a quality grading system would need to focus on product
attributes that can be measured accurately and objectively at the speed
of commerce (e.g., plant line speeds), facilitate product sorting by
grade, relate directly to those product characteristics valued by
buyers and consumers, and be trusted by potential users. In addition, a
well-functioning pork quality grade system would provide important
economic signals to the industry and encourage the production of higher
quality pork products. These improvements would also lead to increased
demand for pork, both domestically and internationally.
---------------------------------------------------------------------------
\9\ Tonsor, G.T., and T.C. Schroeder. 2013. ``Economic Needs
Assessment: Pork Quality Grading System.'' Available at: https://www.agmanager.info/ag-policy/livestock-policy/economicneeds-assessment-pork-quality-grading-system.
---------------------------------------------------------------------------
A working example of these criteria is the USDA beef quality
grading system. The beef quality grade standards are widely adopted by
the beef industry and are globally recognized. The USDA Prime and
Choice beef grades are widely recognized by consumers, both
domestically and abroad, as premium products that demand a higher value
and also deliver a consistent eating experience. These grade groupings
also result in an economic signal that is sent up and down the beef
products chain, affecting the way producers implement genetic and
nutritional changes. In addition, the adoption of instrument grading
technologies has allowed the industry and USDA graders to stay in tune
with plant line speeds and demands for consistent grade application.
The accurate measurement of color and marbling scores is important
for a pork quality grading system. Published color and marbling
scorecards and visual aids have been a primary subjective method for
putting pork quality into categories, whether for research trials or at
processing plants. Color evaluation has been performed using one of
many objective color analyses. There has also been recent research on
the ability to objectively measure pork quality through
instrumentation. In a large modern pork processing facility, some form
of instrumentation would be needed for pork quality evaluation at
current line speeds.
The National Pork Board has indicated it is in the process of
revising the current pork color and marbling score cards.\10\ These
cards will most likely contain additional information regarding the
color parameters for each color range and would still be based on a
10th rib cross-section of the longissimus dorsi. The challenge with
having this measurement location is that most processing facilities do
not make that cross-section cut, and therefore it cannot be measured.
Homm, et al., 2006,\11\ evaluated the influence of chop location on
subsequent color and marbling scores. They found that color and
marbling were consistent with the central portions of the loin. There
was more variability in the anterior and posterior portions, with
anterior chops being generally darker, posterior chops generally
lighter, and both ends having more marbling than centrally located
chops. These results indicated that the location being measured for
color and marbling is important and could be problematic when a 10th
rib cross-section is not available. Current research being done with
various instrumental measurements is showing promise in measuring lean
color and marbling along the ventral portion of the loin where the back
ribs have been removed, which could become a reliable indicator for
color and marbling levels.
---------------------------------------------------------------------------
\10\ National Pork Producers Council (NPPC). 1999. Official
color and marbling standards. NPPC, Des Moines, IA.
\11\ Homm, J.W., A.T. Waylan, J.A. Unruh, and R.C. Johnson.
2006. Influence of chop location within a loin on boneless pork
longissimus quality. J. Muscle Foods 17, 221-236.
---------------------------------------------------------------------------
Proposed Changes to the Pork Standards
Printed below beginning with section 54.131 is the proposed text
for a revised pork standard. While the preamble describing the history
of the standards is not reprinted here, the body of the actual proposed
standard (sections 54.131 through 54.135) is shown in its entirety.
Should any updates to the pork standard occur, the preamble will be
updated accordingly. The current standard, including the preamble, can
be viewed at https://www.ams.usda.gov/
[[Page 48974]]
sites/default/files/media/Pork_Standard%5B1%5D.pdf.
As discussed, the proposed revised standard identifies marbling and
color as the primary considerations for quality designations, instead
of lean/fat and yield as exists in the current standard. Further, the
proposed revised standard excludes the provision for grading of sow
carcasses, maintaining the official standards for barrows and gilts
only.
Sec. 54.131 Scope
The standards for grades of pork are written primarily in terms of
carcasses. However, they also are applicable to the grading of sides
and primal cuts, such as the ham, loin, or shoulder. To simplify the
phrasing of the standards, the words ``carcass'' and ``carcasses'' are
used also to mean ``side'' or ``sides.''
Sec. 54.132 Bases for Pork Carcass Standards
The official standards for pork carcass grades provide for
segregation according to (a) class, as determined by the apparent sex
condition of the animal at the time of slaughter, and (b) grade, which
reflects the quality of lean in the carcass. A quality grade applied to
a carcass will be associated with all cuts for that carcass, as long as
the associated cuts are traceable through fabrication and labeling.
Sec. 54.133 Pork Carcass Classes
The five classes of pork carcasses, comparable to the same five
classes of slaughter hogs, are: barrow, gilt, sow, stag, and boar. The
official pork quality standards provide for the grading of barrow and
gilt carcasses; grades are not provided for sow, stag, or boar
carcasses.
(a) Barrow. A barrow is a male swine castrated when young and
before development of the secondary physical characteristics of a boar.
(b) Gilt. A gilt is a young female swine that has not produced
young and has not reached an advanced stage of pregnancy.
(c) Sow. A sow is a mature female swine that usually shows evidence
of having reproduced or having reached an advanced stage of pregnancy.
(d) Boar. A boar is an uncastrated male swine.
(e) Stag. A stag is a male swine castrated after development or
beginning of development of the secondary physical characteristics of a
boar. Typical stags are somewhat coarse and lack balance--the head and
shoulders are more fully developed than the hindquarter parts, bones
and joints are large, the skin is thick and rough, and the hair is
coarse.
Sec. 54.134 Application of Standards for Grades of Barrow and Gilt
Carcasses
(a) Grades for barrow and gilt carcasses are based on two general
quality characteristics (1) the color of the exposed lean and (2) the
amount of marbling associated with the lean.
(b) There are three general levels of quality recognized: (1)
Prime, Choice, and Select. The quality (color and marbling) of the lean
is best evaluated by a direct observation of its characteristics in the
cut surface of the longissimus dorsi. Quality of the lean is described
in terms of characteristics of the longissimus dorsi, at either the
10th rib cross-section or other cross-sections within the loin that
expose a surface of the longissimus dorsi for evaluation, or the
exposed lean on the ventral side of the boneless loin after removal of
the back ribs. The surface area of the longissimus dorsi should be at
least 4 square inches to be acceptable for evaluating color and
marbling characteristics.
(c) USDA uses photographs and other objective aids or devices
designated by the Agricultural Marketing Service (AMS) in the correct
interpretation and application of the standards.\12\ Official pork
color and marbling standards are maintained by the National Pork Board
and will be used as official references for the USDA pork quality
grades. Objective aids can also include predictive instrumentation
technologies that evaluate color and/or marbling scores and meet
thresholds for accuracy and precision of the predictions.
---------------------------------------------------------------------------
\12\ Information concerning such devices and their use may be
obtained from AMS' Livestock, Poultry, and Seed Program.''
---------------------------------------------------------------------------
(d) To determine the grade of a carcass, the longissimus dorsi must
be present at a minimum of 4 square inches and exposed for subjective
and/or objective evaluation to allow a visual or instrumental
assessment of color and marbling levels. This exposure can be done
multiple ways:
(1) Exposing a cross-section of the longissimus dorsi at the 10th
rib, or other location between approximately the 4th rib, posterior to
the scapula (blade bone), and the longissimus dorsi cross-section
anterior to the ilium (hip bone), or
(2) Exposing the longissimus dorsi on the ventral side of the
boneless loin after removal of the back ribs.
Carcasses not presented in one of these manners are not eligible for
quality grading.
For barrow and gilt carcasses, the cut surface of the longissimus
dorsi shall be, at a minimum, slightly firm to be assessed for color
and marbling levels. Lean firmness is essential for both the eating
experience and in the fabrication process. Barrow and gilt carcasses
meeting the minimum lean firmness are eligible to be graded on color
and marbling levels. Barrow and gilt carcasses having less than
slightly firm lean are not eligible for pork quality grading.
For barrow and gilt carcasses, quality of the lean is evaluated by
considering its color and marbling in a cut longissimus dorsi surface.
Barrow and gilt carcasses will be assessed for their color and marbling
levels based on the published standards by the National Pork Board. The
color levels are evaluated on a scale from one to six and the marbling
levels are evaluated on a scale of one to ten.
The firmness requirement of slightly firm is the same for all
grades and a minimum requirement for application of a grade, regardless
of the extent to which marbling may exceed the minimum of a grade.
Sec. 54.135 Specifications for Official United States Standards for
Grades of Barrow and Gilt Carcasses
(a) The quality grade of a barrow or gilt carcass is determined on
the basis of the following: lean color score and lean marbling score.
The relationship between color, marbling, and quality grade is
shown in Table 1.
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\13\ Carcasses with less than slightly firm lean are not
eligible for quality grading.
Table 1--Pork Carcass Quality Grade Based on Lean Color and Marbling \13\
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Lean color
Quality grade score Lean marbling score
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USDA Prime............................... 4-5 Greater than or equal to 4.
USDA Choice.............................. 3 Greater than or equal to 2.
[[Page 48975]]
USDA Select.............................. 2 Greater than or equal to 2.
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(b) The following descriptions provide a guide to the
characteristics of barrow and gilt carcasses in each grade.
(1) USDA Prime--Barrow and gilt carcasses in this grade have at
least a slightly firm lean, a color score of 4 or 5, and a marbling
score of 4 or greater.
(2) USDA Choice--Barrow and gilt carcasses in this grade have at
least a slightly firm lean, a color score of 3, and a marbling score of
2 or greater.
(3) USDA Select--Barrow and gilt carcasses in this grade have at
least a slightly firm lean, a color score of 2, and a marbling score of
2 or greater.
Request for Comments
AMS is soliciting comments from stakeholders about potential
changes to the U.S. Standards for Grades of Pork Carcasses. This could
also include any current and/or on-going research or industry practice
that has relevance to this standard. AMS also invites comments about
how those changes would be implemented in a voluntary pork grading
system.
Dated: October 18, 2017.
Bruce Summers,
Acting Administrator, Agricultural Marketing Service.
[FR Doc. 2017-22934 Filed 10-20-17; 8:45 am]
BILLING CODE 3410-02-P