Administrative Rules of Montana
Department 32 - LIVESTOCK
Chapter 32.9 - GENERAL LICENSING AND PROVISIONS
Subchapter 32.9.2 - Milk Quality Requirements
Rule 32.9.208 - ABNORMAL MILK DUE TO MASTITIS
Current through Register Vol. 6, March 22, 2024
(1) Required laboratory examination for the presence of unwholesome mammary secretions, whether an infectious, physiological, or environmental origin, must be made on all raw milk samples at least twice each 6 months. Samples shall be analyzed at the department of livestock's diagnostic laboratory or at a laboratory approved by the department administrator.
(2) When a herd milk sample exceeds any of the following screening test results: California mastitis test -- weak positive (CMT1+) ; catalase test -- 30 percent oxygen; modified whiteside test -- positive (1+) ; Wisconsin mastitis test -- WMT value of 28; a somatic cell count using the direct microscopic clump count method or equivalent, or the electronic method must be made on that sample. The results of the somatic cell direct count are the official results.
(3) Whenever the somatic cell count indicates the presence of 1,500,000 or more somatic cells per ml., the following procedures must be applied:
Secs. 81-2-102, 81-22-102 MCA; IMP, Secs. 81-2-102, 81-22-102 MCA;