Abstract

LOPES, D.T. et al. Associations between andrology and quality of carcass traits in Nellore bulls. Arch. zootec. [online]. 2014, vol.63, n.243, pp.543-546. ISSN 1885-4494.  https://dx.doi.org/10.4321/S0004-05922014000300014.

The aim with this study was to verify the existence of genetic associations among carcass traits, and andrology traits in Nellore young bulls. Breeding soundness and carcass examinations were done on 223 Nellore males with average of 21 months age. To estimate the genetic parameters the bayesian inference was used through the software THRGIBBS1F90. The heritability estimates was obtained for DEFMAI, DEFMEN, DEFTOT, AR, AOL, EG and P8 were 0.33, 0.20, 0.21, 0.35, 0.32, 0.28, and 0.29, respectively. The genetic correlation estimates of DEFTOT with AOL, EG and P8 were -0.46, -0.28, and -0.19, respectively; to AR with these same characteristics were -0.60, -0.03, and -0.12, respectively. The results of this study demonstrate that there is a favorable correlated response between reproductive and carcass traits studied.

Keywords : Genetic correlation; Seminal quality; Zebu cattle.

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