Genetic associations between flight speed and growth traits in Nellore cattle

Journal of Animal Science
A C Sant'AnnaL G Albuquerque

Abstract

The aim of the present study was to estimate genetic parameters for flight speed and its association with growth traits in Nellore beef cattle. The flight speed (FS) of 7,402 yearling animals was measured, using a device composed of a pair of photoelectric cells. Time interval data (s) were converted to speed (m/s) and faster animals were regarded as more reactive. The growth traits analyzed were weaning weight (WW), ADG from weaning to yearling age, and yearling scrotal circumference (SC). The (co)variance components were estimated using REML in a multitrait analysis applying an animal model. The model included random direct additive genetic and residual effects, fixed effects of contemporary groups, age of dam (classes), and age of animal as covariable. For WW, the model also included maternal genetic and permanent environmental random effects. The direct heritability estimate for FS was 0.26 ± 0.05 and direct heritability estimates for WW, SC, and ADG were 0.30 ± 0.01, 0.48 ± 0.02, and 0.19 ± 0.01, respectively. Estimates of the genetic correlation between FS and the growth traits were -0.12 ± 0.07 (WW), -0.13 ± 0.08 (ADG), and -0.11 ± 0.07 (SC). Although the values were low, these correlations showed that animals with bette...Continue Reading

References

Jan 5, 2002·Journal of Animal Science·L G Albuquerque, K Meyer
Mar 23, 2012·Animal : an International Journal of Animal Bioscience·D BarrozoS A Queiroz

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Citations

Sep 2, 2014·Journal of Animal Breeding and Genetics = Zeitschrift Für Tierzüchtung Und Züchtungsbiologie·A C Sant'AnnaM J R Paranhos da Costa
Dec 5, 2014·Journal of Applied Genetics·T S ValenteMateus J R Paranhos da Costa
Nov 7, 2014·Frontiers in Genetics·Marie J HaskellSimon P Turner
Jun 15, 2016·PloS One·Tiago Silva ValenteMateus José Rodrigues Paranhos da Costa
Apr 4, 2018·Animals : an Open Access Journal From MDPI·Jessica E MonkCaroline Lee
Jun 1, 2014·Journal of Animal Science·D G RileyJ O Sanders
Dec 13, 2019·Journal of Animal Breeding and Genetics = Zeitschrift Für Tierzüchtung Und Züchtungsbiologie·Qiuming ChenChuzhao Lei
May 14, 2014·Journal of Animal Science·S E SchmidtR D Randel
Jul 27, 2020·Translational Animal Science·Andrew F WilliamsJennifer M Thomson
May 10, 2013·Journal of Animal Science·A C Sant'AnnaL G Albuquerque

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