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The effect of energy balance and condition score on early lactation fertility in two genetic lines of Holstein cattle maintained in two contrasting feeding systems

Published online by Cambridge University Press:  23 November 2017

G. E. Pollott  and
M. P. Coffey
G. E. Pollott*
Affiliation:
SAC, Penicuik, Midlothian, United Kingdom
M. P. Coffey
Affiliation:
SAC, Penicuik, Midlothian, United Kingdom
*
Email:[email protected]
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Extract

The ability of high-yielding modern dairy cows to perform in the range of systems found on UK dairy farms, and to be profitable and sustainable, needs investigating. As part of a project to study the robustness of such animals, milk-progesterone profiling was used to investigate the reproductive performance of two genotypes of dairy cow on two production systems (Pollott and Coffey, 2006). In this paper differences in fertility between genotypes and systems was investigated using energy balance (EB) and body condition score (CS) as explanatory factors.

Type
Theatre Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2007 , April 2007 , pp. 56
Copyright
Copyright © The British Society of Animal Science 2007

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References

Pollott, G. E. and Coffey, M. P. (2006) The effects of genetic selection and feeding system on dairy cow fertility, measured using milk progesterone profiles. Proceedings of BSAS, p15. BSAS:Edinburgh.Google Scholar