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Genetic Aspects of Dairy Beef Production^{1, 2,}

Purdue University, Lafayette, Indiana 47907

Abstract

Due to decreased selection differential for milk production and due to the small positive association between growth and milk production, it would seem logical for the dairyman to continue to emphasize milk production. Beef production from dairy herds should be considered as a by-product of the dairy operation. Dairy cows can be bred to beef bulls only when the productive life of the cow is long and when the producer can rely entirely on sire selection for genetic improvement in milk production. Considering relative growth rate of the large dairy breeds and the beef breeds, breeding dairy cows to beef bulls would appear to be a questionable practice from the economic standpoint. Current research plus ingenuity of the beef producers will determine whether or not the dairy breeds should be incorporated into commercial beef production. It would appear that genes from the large dairy breeds can make a real contribution to the productivity of commercial beef herds.

¹ Journal Paper No. 4086. Purdue University Agricultural Experiment Station. A contribution from the Department of Animal Sciences.

² Presented at the Annual Meeting of the American Society of Animal Science. Purdue University, Lafayette, Indiana, August 3 to 6, 1969, as part of a Symposium on Beef Production from Dairy Cattle.