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Comparison of metabolic profiles and fertility in the same dairy cows during their first and second lactations

Published online by Cambridge University Press:  23 November 2017

N. Bourne ,
A. Swali ,
A.K. Jones ,
S. Potterton  and
D.C. Wathes
N. Bourne
Affiliation:
Royal Veterinary College, London, United Kingdom
A. Swali
Affiliation:
Royal Veterinary College, London, United Kingdom
A.K. Jones
Affiliation:
University of Reading, Reading, Berks, United Kingdom
S. Potterton
Affiliation:
University of Reading, Reading, Berks, United Kingdom
D.C. Wathes*
Affiliation:
Royal Veterinary College, London, United Kingdom
*
Email:[email protected]
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Extract

The decline in dairy cow fertility over the past 30 years has major economic, welfare, genetic and environmental consequences. A significant number of potential replacement heifers either never calve or else complete only a single lactation. The relationships between metabolic status and fertility may change with age as cows reach physical maturity. To determine the reasons behind the high loss rates attributable to infertility, this study tracked a group of animals until the end of their second lactation to compare fertility and metabolic hormone profiles in the same cows at different ages.

Type
Theatre Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2007 , April 2007 , pp. 54
Copyright
Copyright © The British Society of Animal Science 2007

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References

Wathes, D.C., Bourne, N., Cheng, Z., Mann, G.E., Taylor, V.J. and Coffey, M.P. 2007. Multiple correlation analyses of metabolic and endocrine profiles with fertility in primiparous and multiparous cows. Journal of Dairy Science In press.CrossRefGoogle Scholar