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Differences in Milking Response under Prescribed Variations in Methods Employed to Stimulate Milk Let-Down^{1, 2,}

Kansas Agricultural Experiment Station, Manhattan

ABSTRACT

Massaging the udders of dairy cows prior to milking is widely advocated as a beneficial practice in stimulating milk let-down. Saveliev (11) reported a saving of 0.75 min. in average milking time when the udder was massaged before milking and at intervals during milking. Smith and Petersen (12) observed a faster rate of milk flow and a consequent saving in milking time where the udders were washed in warm water and each quarter was fore-milked before applying the milking machine. Knoop and Monroe (9), likewise, found that a pre-milking udder massage shortened the time of milking.

Although the use of warm water has been and still is being stressed as an important adjunct to udder massage in stimulating milk let-down, Dodd and Foot (3, 4) and Knoop and Monroe (9) found cold water to be just as effective. Homb et al. (6) obtained no differences in milk yields and rates of milk flow when the udders were massaged with a dry cloth as compared with a warm, wet cloth.

¹ Contribution no. 211 from the Department of Dairy Husbandry and no. 92, Office of the Director. This work was supported by Babson Bros. Co., Chicago, Ill.

² Some of the data herein reported are taken from a thesis presented by D. B. Roark for the degree, Master of Science, at Kansas State College and part of the data are taken from a thesis presented by G. H. Beck to the Graduate School of Cornell University in partial fulfillment of the requirements for the degree, Doctor of Philosophy.

³ Now at Mississippi State College.