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Response of modern hybrid pigs to dietary energy concentration

Published online by Cambridge University Press:  22 November 2017

S.A. Chadd  and
D.J.A. Cole
S.A. Chadd
Affiliation:
University of Nottingham, School of Agriculture
D.J.A. Cole
Affiliation:
University of Nottingham, School of Agriculture
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Extract

In a recent experiment using the same improved genotype, pigs over the liveweight range 25 to 120 kg were found to have modest voluntary energy intakes (Chadd and Cole, 1988) particularly when compared with former intake prediction equations. It follows that the response of such pigs in terms of voluntary feed intake behaviour when provided with diets differing in energy concentration may have also changed. Diets that are formulated to be low in energy density and therefore bulky in nature are likely to represent more of a limitation to voluntary feed intake than previously. Former experiments designed to examine the pig's ability to adjust feed intake in order to maintain a constant energy intake have produced results varying from complete to incomplete compensation.

A study was undertaken to examine the response of a modern genotype in terms of voluntary feed intake, digestible energy (DE) intake, growth performance and associated carcass characteristics, when offered a range of dietary energy concentrations ad libitum and taken to a heavy slaughter weight.

Type
Pig and Poultry Production
Information
Proceedings of the British Society of Animal Production (1972) , Volume 1989 , March 1989 , pp. 80
Copyright
Copyright © British Society of Animal Production 1989

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References

Chadd, S.A. and Cole, D.J.A. (1988) Food intake, growth and carcass quality of improved genotypes of growing/finishing pigs. Anim. Prod. 46, 523 (Abstr.).Google Scholar
Cole, D.J.A., Hardy, B. and Lewis, D. (1972) Nutrient density of pig diets. In Pig Production (Cole, D.J.A., Ed.), pp 243–257. London, Butterworths.Google Scholar