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Nature's Compensation for the Lost Quarter of a Cow's Udder

Division of Dairy Cattle Breeding, Feeding, and Management Investigations, Bureau of Dairy Industry, United States Department of Agriculture

ABSTRACT

In following the regular procedure of studying the structure of the cow's udder in relation to its comparative development in early life and its subsequent producing ability, the Bureau of Dairy Industry recently recorded a case that appears to throw some light on the question of whether or not Nature compensates for the loss of one or more quarters of the udder by increasing the activity of the remaining quarters. The case in question is that of cow No. 1074, a registered Jersey bred and raised in the Bureau's herd at the National Agricultural Research Center, Beltsville, Md.

The udder of this animal was examined periodically beginning at the age of 1 month 26 days, according to the program regularly followed with all heifers in the breeding herd. The notes recorded at the different observations up to 11 months 28 days of age include nothing to suggest any deficiency or abnormality in the quantity or form of glandular tissue in the udder.

¹ Resigned May 31, 1937.