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The relationship between body energy traits and functional traits in first lactation cows

Published online by Cambridge University Press:  23 November 2017

E Wall*
Affiliation:
SAC, Edinburgh, UK University of Edinburgh, Edinburgh, UK
M P Coffey
Affiliation:
SAC, Edinburgh, UK University of Edinburgh, Edinburgh, UK
S Brotherstone
Affiliation:
SAC, Edinburgh, UK University of Edinburgh, Edinburgh, UK
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Extract

Many studies have shown the negative impact of high production on functional performance in the dairy cow (e.g. Dechow et al., 2002). It is suggested that the increased capacity for milk production has resulted in the partial “shift” of nutrients away from maintaining functional fitness towards production output. Bull profiles for daughter body energy traits were produced using random regression techniques. The relationship of functional traits with body energy traits across 1st lactation was examined. If body energy is correlated with health and fertility it could indicate that high metabolic stress leads to deterioration in one or more of these traits.

Type
Theatre presentations
Copyright
Copyright © The American Society of International Law 2016

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References

Dechow, CD, Rogers, GW, Clay, JS. 2002. Heritability and correlations among body condition score loss, body condition score, production and reproductive performance. Journal of Dairy Science 85: 3062-3070.CrossRefGoogle ScholarPubMed
Wall, E, Coffey, MP, Brotherstone, S. 2005. Body trait profiles in Holstein Friesians modeled using random regression. Journal of Dairy Science 88: 3663-3671.CrossRefGoogle ScholarPubMed