Article
Genetic correlation estimates between calving ease in primiparous cows and economically important traits in Nellore cattle.
Journal of animal breeding and genetics = Zeitschrift fur Tierzuchtung und Zuchtungsbiologie - 1 Sept 2024
Marinho de Negreiros Maria Paula, Amorim Sabrina Thaise, Lôbo Raysildo Barbosa, Brunes Ludmilla Costa, Magnabosco Claudio Ulhoa, Bergmann José Aurélio Garcia, Espigolan Rafael, Cravo Pereira Angelica Simone, Baldi Fernando
Abstract excerpt
This study aimed to estimate (co)variance components and genetic parameters for calving ease (CE) and their genetic correlations with growth, reproductive, carcass, and feed efficiency traits in Nellore cattle. Phenotypes for CE are scored in two categories: normal calving and assisted calving. The traits considered were probability of precocious calving, age at first calving, stayability, adjusted scrotal...
Topics
- Animals
- Cattle
- Female
- Pregnancy
- Phenotype
- Male
- Birth Weight
- Reproduction
- Breeding
- Parity