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The utilization by pigs of methionine from five protein concentrates compared with synthetic methionine

Published online by Cambridge University Press:  24 July 2007

Jane Leibholz  and
A. C. Kirby
Jane Leibholz
Affiliation:
Department of Animal Husbandry, University of Sydney, Camden, New South Wales, Sydney 2570, Australia
A. C. Kirby
Affiliation:
Department of Genetics and Biometry, University of Sydney, New South Wales, Sydney 2006, Australia
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Abstract

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1. Pigs (n 100) between 28 and 56 d of age were given diets containing one of five protein concentrates ad lib.

2. The utilization of methionine from the protein concentrates was compared with synthetic methionine.

3. Increasing the methionine content of the diets from 1.5 to 2.2 g/kg diet increased the weight gains of the pigs from 61 g/d to 198–292 g/d. The feed conversion efficiencies decreased from 2.56 to 1.34– 1.56.

4. The utilization of methionine from the protein concentrates for weight gain, as compared with synthetic methionine, was meat meal A 0.89, meat meal B 0.97, soya-bean meal 1.02, cotton-seed meal 0.87 and dried skim milk 1.04.

Type
Papers on General Nutrition
Information
British Journal of Nutrition , Volume 53 , Issue 2 , March 1985 , pp. 391 - 397
Copyright
Copyright © The Nutrition Society 1985

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