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Effects of Premilking Udder Preparation on Environmental Bacterial Contamination of Milk

Louisiana Agricultural Experiment Station, Louisiana State University, Baton Rouge 70803

ABSTRACT

Premilking udder preparations varied wetness and cleanliness of udders and teats at machine attachment. In Experiment 1, in a prep stall with manual drying of teats only, udder surface drainage during milking increased standard plate counts compared to preparations with dryer udder surfaces at machine attachment. In experiment 2, use of prep stall only and no udder and teat preparation had higher standard plate count than preparation by prep stall with manual drying of udder and teats and by wet paper towels in wetting and cleaning teats. No preparation of udder and teats had higher standard plate count attributed to soiled teats at machine attachment. udder surfaces should be dry, and teats should be clean and dry at machine attachment. Premilking udder preparations can effeet milk quality as measured by milk bacterial count.

¹ Department of Animal Science, Cornell University, Ithaca, NY 14853.

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