Abstract
SummaryThrough survey questionnaires, information was obtained about the abnormal milk control programs administered by state regulatory agencies. Responses were received from dairy regulatory officials in 49 states. A majority (67%) of the states did not have a designated abnormal milk regulatory program at the time of this survey, but many were in the process of developing such programs. More concern was evident for the control of abnormal milk in the Grade A supply than for the manufacturing supply.The tests most widely reported for detecting abnormal milk (in order of prominence) were: microscopic leucocyte count, California mastitis test, modified Whiteside test, catalase test, and Wisconsin mastitis test. Standards based on leucocyte counts of 500,000 or 1,000,000/ml were reported by 13 states. Approximately 70% of the responding states indicated that their programs followed the recommendations of the National Mastitis Council; however, others (30%) indicated further studies would be made before abnormal milk regulations could be promulgated.
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