Effects of Heterosis on Longevity in Beef Cattle

Authors

Rafael Nunez-Dominquez, Universidad Autonoma ChapingoFollow
Larry V. Cundiff, U.S. Meat Animal Research CenterFollow
Gordon E. Dickerson, U.S. Meat Animal Research Center
Keith E. Gregory, U.S. Meat Animal Research Center
Robert M. Koch, U.S. Meat Animal Research Center

Date of this Version

1985

Document Type

Article

Comments

Published in Beef Research Program Progress Report (1985) No. 2: 10-12

Abstract

Longevity can be important to the economic efficiency of beef production. The longer cows remain productive in a herd, the fewer the number of replacement heifers needed and the greater the calf output per cow maintained. In this way, more heifers can be sold for feeding and slaughter, and the cost of growing out replacement females to a productive age is reduced. Less culling of infertile cows also increases output per cow exposed. This study was conducted to determine effects of heterosis on longevity and associated factors in crosses of the Hereford, Angus, and Shorthorn breeds.