Individual Heterosis Effects on Mature Size and Maternal Heterosis Effects on Preweaing Traits and Postweaning Growth and Carcass Traits

Authors

Keith E. Gregory, U.S. Meat Animal Research Center
Delwyn D. Dearborn, University of Nebraska West Central Research and Extension Center
Larry V. Cundiff, U.S. Meat Animal Research CenterFollow
Robert M. Koch, U.S. Meat Animal Research Center

Date of this Version

1988

Document Type

Article

Comments

Published in Beef Research Program Progress Report (1988) No. 3: 17-18

Abstract

The Brown Swiss, Red Poll, Hereford, and Angus breeds and their 12 reciprocal crosses from a four.breed diallel crossing experiment were evaluated for production and carcass characters. Estimates of average heterosis and breed maternal and additive direct effects were reported earlier for preweaning traits, growth rate and puberty in females, growth traits of steers, and carcass traits of steers. This report provides results from the second phase of this experiment for maternal performance data on the females, including estimates of heterosis and breed maternal and additive direct effects on cow size and on preweaning traits, postweaning growth, and carcass traits of their progeny.