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Effect of post-mating nutrition on lamb output, foetal development and post-natal lamb performance in mature and adolescent ewes

Published online by Cambridge University Press:  20 November 2017

R.W. Annett  and
A.F. Carson
R.W. Annett*
Affiliation:
The Agricultural Research Institute of Northern Ireland, Hillsborough, Co. Down, BT26 6DR, U.K.
A.F. Carson
Affiliation:
The Agricultural Research Institute of Northern Ireland, Hillsborough, Co. Down, BT26 6DR, U.K.
*
Email: ronaldannett@yahoo.co.uk
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Extract

Nutrition of the ewe during early pregnancy has important implications for lamb output through its effects on implantation and early embryonic development. In adolescent ewes a high plane of nutrition during the first half of gestation has been found to reduce conception rate, lamb birth weight and neonatal lamb survival (Wallace et al., 1996). However few studies have examined the effects of nutrition immediately post-mating on foetal development and subsequent lamb performance. The current experiment was set up to investigate how plane of nutrition of adolescent and mature ewes during the first month after mating affects lamb output, foetal development and lamb growth.

Type
Theatre Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2004 , 2004 , pp. 89
Copyright
Copyright © The British Society of Animal Science 2004

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References

Agricultural and Food Research Council (1993). Energy and Protein Requirements of Ruminants. An advisory manuel prepared by the AFRC Technical Committee on Responses to Nutrients, CAB International, Wallingford, UK Google Scholar
Wallace, J.M., Aitken, R.P. and Cheyne, M.A. (1996). Nutrient partitioning and fetal growth in rapidly growing adolescent ewes. Journal of Reproduction and Fertility 107: 183–190 CrossRefGoogle ScholarPubMed