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Genetic correlations among body condition score, yield and fertility in multiparous cows using random regression models
Bastin, Catherine; Gillon, Alain; Massart, Xavier et al.
2010In Proceedings of the 9th World Congress on Genetics Applied to Livestock Production
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Abstract :
[en] Genetic correlations between body condition score (BCS) in lactation 1 to 3 and four economically important traits (days open, 305-days milk, fat, and protein yields recorded in the first 3 lactations) were estimated on about 12,500 Walloon Holstein cows using 4-trait random regression models. Results indicated moderate favorable genetic correlations between BCS and days open (from -0.46 to -0.62) and suggested the use of BCS for indirect selection on fertility. However, unfavorable genetic correlations between BCS and yields (from -0.16 to -0.71) indicated that selection on BCS would have deleterious effects on milk, fat, and protein yields, especially in lactation greater than 1.
Disciplines :
Animal production & animal husbandry
Genetics & genetic processes
Author, co-author :
Bastin, Catherine ;  Université de Liège - ULiège > Sciences agronomiques > Zootechnie
Gillon, Alain ;  Université de Liège - ULiège > Sciences agronomiques > Zootechnie
Massart, Xavier;  Association Wallonne de l'Elevage > Recherche et Développement
Bertozzi, Carlo;  Association Wallonne de l'Elevage > Recherche et Développement
Vanderick, Sylvie  ;  Université de Liège - ULiège > Sciences agronomiques > Zootechnie
Gengler, Nicolas  ;  Université de Liège - ULiège > Sciences agronomiques > Zootechnie
Language :
English
Title :
Genetic correlations among body condition score, yield and fertility in multiparous cows using random regression models
Publication date :
August 2010
Event name :
9th World Congress on Genetics Applied to Livestock Production (WCGALP)
Event place :
Leipzig, Germany
Event date :
August 1-6, 2010
Audience :
International
Main work title :
Proceedings of the 9th World Congress on Genetics Applied to Livestock Production
Publisher :
German Society for Animal Science, Giessen, Germany
ISBN/EAN :
978-3-00-031608-1
Peer reviewed :
Peer reviewed
Available on ORBi :
since 13 January 2011

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