Effects of temperament and acclimation to handling on reproductive performance of Bos taurus beef females

Journal of Animal Science
R F CookeT Delcurto

Abstract

Two experiments evaluated the effects of temperament and acclimation to handling on reproductive performance of Bos taurus beef females. In Exp. 1, 433 multiparous, lactating Angus × Hereford cows were sampled for blood and evaluated for temperament before the breeding season. Cow temperament was assessed by chute score and exit velocity. Chute score was assessed on a 5-point scale according to behavioral responses during chute restraining. Exit score was calculated by dividing exit velocity into quintiles and assigning cows with a score from 1 to 5 (1 = slowest, 5 = fastest cows). Temperament score was calculated by averaging chute and exit scores. Cows were classified for temperament type according to temperament score (≤ 3 = adequate, > 3 = aggressive). Plasma cortisol concentrations were greater (P < 0.01) in cows with aggressive vs. adequate temperament. Cows with aggressive temperament had reduced (P ≤ 0.05) pregnancy and calving rate and tended to have reduced (P = 0.09) weaning rate compared with cows with adequate temperament. Hence, kilogram of calf born per cow was reduced (P = 0.05) and kilogram of calf weaned per cow tended to be reduced (P = 0.08) in aggressive cows. In Exp. 2, 88 Angus × Hereford heifers (initial...Continue Reading

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Citations

Aug 7, 2013·Animal : an International Journal of Animal Bioscience·E MerlotA Prunier
Apr 5, 2014·Animal : an International Journal of Animal Bioscience·D C WathesJ S Cooke
Jul 6, 2014·Reproductive Biology and Endocrinology : RB&E·Toree L BovaErdoğan Memili
Dec 4, 2015·Animals : an Open Access Journal From MDPI·Temple Grandin, Chelsey Shivley
Oct 16, 2015·Animal Health Research Reviews·Cassandra B TuckerKaren S Schwartzkopf-Genswein
Sep 2, 2014·Journal of Animal Breeding and Genetics = Zeitschrift Für Tierzüchtung Und Züchtungsbiologie·A C Sant'AnnaM J R Paranhos da Costa
May 20, 2017·Animal : an International Journal of Animal Bioscience·K M SchubachD W Bohnert
Apr 4, 2018·Animals : an Open Access Journal From MDPI·Jessica E MonkCaroline Lee
Dec 23, 2017·Asian-Australasian Journal of Animal Sciences·Won Seob KimHong Gu Lee
Oct 26, 2018·Animal : an International Journal of Animal Bioscience·R F CookeJ L M Vasconcelos
Feb 9, 2017·Journal of Animal Science·R F CookeJ L M Vasconcelos
Oct 9, 2014·Reproduction in Domestic Animals = Zuchthygiene·R KasimanickamW D Whittier
Apr 8, 2020·Royal Society Open Science·Heather W NeaveMarina A G von Keyserlingk
Nov 15, 2020·Animals : an Open Access Journal From MDPI·Aitor Fernandez-NovoSusana Astiz
Apr 4, 2021·Animals : an Open Access Journal From MDPI·Maggie Creamer, Kristina Horback

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