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Effect of dietary phosphorus content on the fertility of dairy cows over four successive lactations

Published online by Cambridge University Press:  23 November 2017

C P Ferris ,
M A McCoy ,
D C Patterson  and
D J Kilpatrick
C P Ferris*
Affiliation:
Agricultural Research Institute of Northern Ireland, Largepark, Hillsborough, BT26 6DR, United Kingdom
M A McCoy
Affiliation:
Agricultural Research Institute of Northern Ireland, Largepark, Hillsborough, BT26 6DR, United Kingdom
D C Patterson
Affiliation:
Agricultural Research Institute of Northern Ireland, Largepark, Hillsborough, BT26 6DR, United Kingdom
D J Kilpatrick
Affiliation:
Agricultural Research Institute of Northern Ireland, Largepark, Hillsborough, BT26 6DR, United Kingdom
*
E-mail: conrad.ferris@dardni.gov.uk
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Extract

Excessive phosphorus (P) inputs to agricultural systems contribute to the problem of eutrophication of water courses, with dairy farms often implicated as potential sources of P pollution. To help address this issue, there is currently considerable interest in reducing the P content of dairy cow diets. For example, recent research has indicated that the P content of dairy cow rations can be reduced without any negative effect on animal performance (Wu and Satter, 2000). The objective of the current study was to examine the effect of reducing dietary P levels over four successive lactations, on dairy cow fertility.

Type
Poster presentations
Information
Proceedings of the British Society of Animal Science , Volume 2006 , March 2006 , pp. 121
Copyright
Copyright © 2016 The American Society of International Law

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References

Wu, Z. and Satter, L.D. (2000) Milk production and reproductive performance of dairy cows fed two concentrations of phosphorus for two years. Journal of Dairy Science, 83: 1052 – 1063.Google Scholar
Satter, L.D. and Wu, Z. (1999). Phosphorus nutrition of dairy cows – Whats New? Proceedings of the Cornell Nutrition Conference for Feed Manufacturers, 61st Meeting, Cornell University, Ithaca, New York.Google Scholar