Correlação genética entre peso de machos e características reprodutivas e de crescimento de fêmeas, da raça Canchim.

Abstract

The genetic correlations of male body weight (MW12) at 12 months of age with female weight (BWFC) and age (AFC) at first calving, adult weight (AW), and mature weight (A) and maturation rate (k) obtained using the Von Bertalanffy model, were estimated. The genetic correlations, obtained by the restricted maximum likelihood method, were: 0.19 (parameter A), 0.62 (parameter k), -0.58 (AFC), 0.69 (BWFC), and 0.60 (AW). These results indicate that selection to increase male body weight at 12 months of age should result in favorable changes in AFC and parameter k of females, but with increases in BWFC and AW.