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Department of Dairy and Food Industries University of Wisconsin, Madison
ABSTRACT
After many decades of quality improvement work, obtaining consistently high quality milk from all patrons continues to be one of the most bothersome problems for most dairy plant operators. This is true for all of the dairy industries, market milk as well as the manufactured milk industries. In the market milk industry, particularly, bacterial plate counts have been reduced markedly; but other phases of quality have regressed in some areas. In fact, with the adoption of more effective cooling techniques, some dairymen seem to have become less meticulous about real sanitation methods such as cleanliness in milking, cleaning, and sanitizing of milking machines, utensils, etc.
Surveys on many markets show that much attention is needed towards the elimination of common off-flavors. Recent happenings have emphatically called attention to the need for more effective programs on prevention of contamination with chemical adulterants such as antibiotics, insecticides, and weed killers. In many areas, the seriousness of the mastitis problem has become more acute.
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