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Studies on the Rate of Machine Milking of Dairy Cows. I. Normal Variations¹

Cornell University, Ithaca, New York

ABSTRACT

Milking rates were obtained during different and during consecutive stages of lactation for Brown Swiss, Guernsey, Holstein, and Jersey breeds. The average milking was about 3.5 minutes and the average stripping was 37 seconds. The milking rate decreased from about 4.5 minutes in the early lactation, to about 3.4 minutes in the middle, and to about 2.8 minutes in the late, lactation. For cows managed under comparable conditions, 36% milked out in less than three minutes, 38% in three to four minutes, 17% in four to five minutes, and 9% required over five minutes. Editor.

In order to make recommendations to dairymen regarding milking practices, it is desirable to know what can be expected in terms of milking rate when a proper milking procedure is followed. In separate experiments, Dodd (3) and Beck et al. (1, 2) have conducted such studies. Both found definite variations between cows in required milking time.

¹ Supported in part by the De Laval Separator Company, Poughkeepsie, New York.