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Nutritional manipulation of fertility and fecundity

Published online by Cambridge University Press:  21 November 2017

D.J.A. Cole  and
W.H. Close
D.J.A. Cole
Affiliation:
Department of Agriculture and Horticulture, University of Nottingham School of Agriculture, Sutton Bonington, Loughborough, Leics. LE12 5RD
W.H. Close
Affiliation:
Animal and Grassland Research Institute, Church Lane, Shinfield, Reading RG2 9AQ
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Extract

An examination of the influence of nutrition on the series of chronological events in the breeding lifetime has suggested that satisfactory breeding animals can be produced on a range of regimens in early life. For example, nutrition during the rearing phase has to be fairly severe (50% of ad libitum or less) to significantly delay puberty.

Nutrition needs to serve the immediate reproductive needs of the animal and to ensure that the animal is in satisfactory body condition to reproduce throughout its breeding lifetime. Consequently, at certain stages there will be competition for energy and nutrients between the products of conception or lactation on the one hand and the maternal body tissues on the other.

Type
Improvements in Sow Productivity
Information
Proceedings of the British Society of Animal Production (1972) , Volume 1986 , March 1986 , pp. 58
Copyright
Copyright © The British Society of Animal Production 1986

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