Breeding and Genetics

Heritability and Correlation Estimates of Carcass Data from Angus-Sired Steers

Authors: Jennifer A. Minick (Iowa State University) , Doyle E. Wilson (Iowa State University) , M. E. Dikeman (Kansas State University) , E. J. Pollak (Cornell University)

Abstract

Carcass data including Warner-Bratzler shear force, marbling score, hot carcass weight, 12-13th rib fat, and ribeye area from 589 Angus-sired steers in the National Cattlemen’s Beef Association Carcass Merit Project were analyzed to estimate heritabilities and genetic correlations. Genetic parameters were estimated using the sire/maternal-grandsire model with the relationship matrix. The heritabilities for tenderness, marbling, hot carcass weight, ribeye area and rib fat were .25, .29, .79, .59, and .07, respectively.

Keywords: ASL R1738

How to Cite: Minick, J. A. , Wilson, D. E. , Dikeman, M. E. & Pollak, E. J. (2002) “Heritability and Correlation Estimates of Carcass Data from Angus-Sired Steers”, Iowa State University Animal Industry Report. 1(1).