אסיף מאגר המחקר החקלאי

Effect of Dietary Factors on the Responses of Chicks to Corticosterone Injections

Year:

1985

Source of publication :

Authors :

Volume :

26

Co-Authors:

Bartov, I., Department of Poultry Science, Azricultural Research Orzanization, Volcani Center, Bet Dagan 50250, Israel

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Abstract:

1. Corticosterone-injected chicks fed on a diet based on sorghum gained less weight and accumulated more hepatic fat than chicks treated similary and fed on a diet based on maize. The retention of nitrogen and dry matter and the apparent metabolisable energy of these diets were not affected by type of grain, either in corticosterone-injected or in untreated birds. 2. A slight methionine deficiency in the maize diet resulted in an additional increase in the concentration of hepatic lipids in corticosterone-injected chicks. However, hepatic lipid concentration was not affected by either a deficiency or an excess of methionine in the diet based on sorghum. 3. The dietary fat concentration of isocaloric and isonitrogenous diets and the energy concentration of diets containing similar energy-to-protein ratios did not affect the reponse of the chicks to corticosterone. 4. There was a negative correlation between the relative weight gain of corticosterone-treated chicks and the relative hepatic fat content. The latter was positively correlated with relative abdominal fat pad size. © 1985, Taylor & Francis Group, LLC. All rights reserved.

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