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Journal of Dairy Science Vol. 9 No. 5 469-480
© 1926 by American Dairy Science Association ®
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Factors for Adjusting Milk and Butterfat Records of Register of Merit Jersey Cows to a Uniform Age Basis

M. H. Fohrman

Dairy Cattle Breeding Investigations, Bureau of Dairying, United States Department of Agriculture, Washington, D. C.

ABSTRACT

A table of factors for adjusting Register of Merit Jersey milk and butterfat records to a standard age basis has been evolved from the initial records found in the Register of Merit up to and including the 1921 Volume.

The result of the application of these factors to actual records is compared with results secured by the use of other correction factors.

The production curves of Register of Merit cows indicate that the period of maximum producing ability continues from 6 to
Figure 1
years of age.






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Copyright © 1926 by the American Dairy Science Association ®.