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An evaluation of the effect of nutritional strategy in early lactation on performance and energy status of Holstein Friesian dairy cows

Published online by Cambridge University Press:  22 November 2017

F J Young*
Affiliation:
Agri-Food and Bioscience Institute, Hillsborough, United Kingdom
R A Law
Affiliation:
Agri-Food and Bioscience Institute, Hillsborough, United Kingdom
H S Gilmore
Affiliation:
Agri-Food and Bioscience Institute, Hillsborough, United Kingdom
D C Patterson
Affiliation:
Agri-Food and Bioscience Institute, Hillsborough, United Kingdom
A R G Wylie
Affiliation:
Agri-Food and Bioscience Institute, Hillsborough, United Kingdom Agri-Food and Bioscience Institure, Newforge, United Kingdom
C S Mayne
Affiliation:
Agri-Food and Bioscience Institute, Hillsborough, United Kingdom
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Extract

Improving the sustainability and overall longevity and health of modern Holstein Friesian (HF) dairy cattle is essential in order to maintain overall farm profitability. Prolonged negative energy balance in early lactation can result in metabolic stress, as well as long term problems with fertility (Pryce et al., 2004). In addition, maximising the efficiency of nitrogen (N) utilisation by strategies such as reducing the crude protein content of the diet is of crucial importance in minimising the environmental impact of dairying. The aim of this study was to evaluate the effect of a range of nutritional strategies on milk production, energy balance and efficiency of N use in early lactation.

Type
Theatre Presentations
Copyright
Copyright © The British Society of Animal Science 2009

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