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Estimation of breed and heterosis effects for cow productivity, carcass traits and income in beef × beef and dairy × beef crosses in commercial suckler cow production

Wetlesen, Marit Smith; Åby, Bente Aspeholen; Vangen, Odd; Aass, Laila
Peer reviewed, Journal article
Accepted version
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URI
https://hdl.handle.net/11250/2686701
Date
2020
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  • Publikasjoner fra Cristin - Nord universitet [2400]
Original version
Wetlesen, M. S., Åby, B. A., Vangen, O. & Aass, L. (2020). Estimation of breed and heterosis effects for cow productivity, carcass traits and income in beef × beef and dairy × beef crosses in commercial suckler cow production. Acta Agriculturæ Scandinavica. Section A, Animal Science, 69(3), 137-151. doi:   10.1080/09064702.2020.1746825
Abstract
This study aims to investigate calving difficulties, birth-, weaning- and carcass weight, herd life of cow, age at slaughter, average daily carcass gain, carcass conformation, carcass fatness and carcass income per carcass, kg or day, in Aberdeen Angus (A), Hereford (H), Charolais (C), Limousin (L), Simmental (S), Norwegian red (N) and their crosses, in order to evaluate crossbreeding strategies. Direct and maternal breed additive and heterosis effects and predicted phenotypic means were estimated with multiple regression using SAS. Crosses with N resulted in higher weaning weight and less calving difficulties than beef purebreds. Due to favourable maternal additive effects of N on carcass weight and -income, crosses with British breeds had higher performance than the purebreds. (A × C) × C had overall high performance due to beneficial maternal heterosis effects on calving difficulties and carcass weight. In conclusion, utilising profitable heterosis effects have potential in commercial production, but are dependent on production systems.
Description
 
Author's accepted version (postprint).
 
This is an Accepted Manuscript of an article published by Taylor & Francis in Acta Agriculturae Scandinavia, Section A - Animal Science on 1 April 2020.
 
Available online: 10.1080/09064702.2020.1746825
 
Publisher
Taylor & Francis
Journal
Acta Agriculturæ Scandinavica. Section A, Animal Science

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