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The response of gilt body composition to low and high dietary protein during lactation

Published online by Cambridge University Press:  20 November 2017

P.C. Penny  and
H.M. Miller
P.C. Penny
Affiliation:
JSR Healthbred Ltd, Southburn, Driffield, East Yorkshire, YO25 9ED, UK
H.M. Miller
Affiliation:
University of Leeds, Centre for Animal Sciences, LIBA, School of Biology, Leeds, LS2 9JT, UK
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Extract

Lactating sows will respond to increasing dietary lysine during lactation providing that energy does not become limiting. In a recent experiment Sauber et al. (1998) demonstrated that fat genotypes readily mobilised fat to make up for inadequate nutrient intake in lactation whereas lean genotypes mobilised protein. The aim of this experiment was to investigate whether fat versus lean animals of similar genetic merit were equally able to utilise diets varying in lysine content. The animals used in this experiment were of a high lean genotype and had been allowed to express their natural variation for fatness during rearing and gestation.

Type
Theatre Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2000 , 2000 , pp. 19
Copyright
Copyright © The British Society of Animal Science 2000

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References

Sauber, T.E., Stahly, T.S., Williams, N.H. and Ewan, R.C. 1998. Effect of lean growth genotype and dietary amino acid regimen on the lactational performance of sows. Journal of Animal Science 76: 1098–1111.CrossRefGoogle ScholarPubMed
Revell, D.K., Williams, I.H., Mullan, B.P., Ranford, J.L. and Smits, R.J. 1998. Body composition at farrowing and nutrition during lactation affect the performance of primiparous sows: I. Voluntary feed intake, weight loss, and plasma metabolites. Journal of Animal Science 76: 1729–1737.CrossRefGoogle ScholarPubMed