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The effect of plane of nutrition on the body composition of two breeds of wearier sheep fed a high protein diet

Published online by Cambridge University Press:  27 March 2009

T. W. Searle ,
N. McC. Graham  and
J. B. Donnelly
T. W. Searle
Affiliation:
CSIRO, Division of Animal Production, P.O. Box 239, Blacktoun, N.S.W., 2148, Australia
N. McC. Graham
Affiliation:
CSIRO, Division of Animal Production, P.O. Box 239, Blacktoun, N.S.W., 2148, Australia
J. B. Donnelly
Affiliation:
CSIRO, Division of Mathematics and Statistics, P.O. Box 239, Blacktoun, N.S.W., 2148, Australia
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Summary

Corriedale and Dorset Horn castrate male (wether) lambs reared at pasture were weaned at 19 kg live weight (LW), brought indoors and fed a high protein diet such that half of each group grew at ca. 200 g/day and the other half at ca. 100 g/day. Animals were slaughtered at 25 and 30 kg LW and chemical composition (protein, fat, energy, water and ash) of the body determined. The relationship between each body component and shorn empty-body weight was examined by regression analysis.

Within levels of feeding the results were similar in the two breeds. When comparisons were made between feeding levels, the slower-growing animals contained more fat, energy and ash than the faster-growing group, less water, but similar amounts of protein at any given empty-body weight.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 98 , Issue 2 , April 1982 , pp. 241 - 245
Copyright
Copyright © Cambridge University Press 1982

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References

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