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Effect of buffer feeding on milk fat composition from dairy cows offered a high-lipid ration at pasture

Published online by Cambridge University Press:  20 November 2017

E. Magowan ,
A. M. Fearon ,
D.C. Patterson  and
J. A. M. Beattie
E. Magowan
Affiliation:
Department of Food Science, Queen’s UniversityBelfast
A. M. Fearon
Affiliation:
Department of Food Science, Queen’s UniversityBelfast Department of Agriculture and Rural Development, Newforge Lane, Belfast, Co. Antrim BT9 5PX, UK
D.C. Patterson
Affiliation:
The Agricultural Research Institute of Northern Ireland, Hillsborough, Co. Down BT26 6DR, U.K
J. A. M. Beattie
Affiliation:
Department of Agriculture and Rural Development, Newforge Lane, Belfast, Co. Antrim BT9 5PX, UK
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Extract

Manipulation of the dairy cow’s diet at pasture using high-lipid concentrate is an effective natural means of enhancing the composition and physical properties of milk fat and has been applied in several countries to improve the spreadability of butter. However, because of dietary energy deficits deriving from high yield potential of cows or grass of retarded or poor quality, dairy cows are frequently offered supplementary feeds or buffers e.g. silage or additional concentrates, while at pasture. The study investigated the effect on milk fat composition when providing dairy cows with buffer feeds while they received a diet of a high-lipid concentrate and grazed grass which aimed to increase the proportion of unsaturated fatty acids.

Type
ISAE/BSAS
Information
Proceedings of the British Society of Animal Science , Volume 2003 , 2003 , pp. 205
Copyright
Copyright © The British Society of Animal Science 2003

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References

AOCS, 1990. Sampling and Analysis of Commercial Oils and Fats. AOCS, Chicago, USA.Google Scholar
Fearon, A. M., Charlton, C. T. and Kilpatrick, D. J. 1994. A further investigation of the influence of dietary protected lipid supplements on the characteristics of cows’ milk fat. Journal of Science, Food and Agriculture 66: 247–256.Google Scholar