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Close-up dry period protein supplementation influences milk, fat and protein yields of multiparous Holstein dairy cows in the first half of their next lactation

Published online by Cambridge University Press:  20 November 2017

P. H. Robinson  and
J. M. Moorby
P. H. Robinson
Affiliation:
Department of Animal Science, University of California, Davis 95616, USA
J. M. Moorby
Affiliation:
Institute of Grassland and Environmental Research, Plas Gogerddan, Aberystwyth SY23 3EB, UK
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Extract

Considerable effort has recently been directed to better defining protein requirements of dry dairy cows. Early efforts (Moorby et al., 1996) suggested substantial increases in milk and milk protein yield of multiparous cows to a small amount of a high undegradable dietary protein (UDP) supplement in the late dry period. Recent studies have not consistently supported these findings. The objective of this experiment was to define the impact of supplementation of a high UDP supplement in the late dry period of multiparous dairy cows on production of milk and its components.

Type
Poster Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2001 , 2001 , pp. 190
Copyright
Copyright © The British Society of Animal Science 2001

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References

Moorby, J. M., Dewhurst, R. J. and Marsden, S. 1996. Effect of increasing digestible undegraded protein supply to dairy cows in late gestation on the yield and composition of milk during the subsequent lactation. Animal Science 63: 201–213.Google Scholar
Robinson, P. H., Moorby, J. M., Arana, M., Hinders, R., Graham, T., Castelanelli, L. and Barney, N. 2000. Influence of late dry period protein supplementation on full lactation productive and reproductive performance of Holstein cows. Journal of Dairy Science 83 (Suppl. 1): 244.Google Scholar