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The effect of meal-feeding and food restriction on body composition, food utilization and intestinal adaptation in light-breed chicks

Published online by Cambridge University Press:  09 March 2007

Zafrira Nitsan ,
I. Nir  and
I. Petihi
Zafrira Nitsan
Affiliation:
Institute of Animal Science, Agricultural Research Organization, The Volcani Center, PO Box 6, Bet Dagan 50-200, Israel
I. Nir
Affiliation:
Department of Animal Science, Faculty of Agriculture, The Hebrew University of Jerusalem, PO Box 12, Rehovot 76-100, Israel
I. Petihi
Affiliation:
Department of Animal Science, Faculty of Agriculture, The Hebrew University of Jerusalem, PO Box 12, Rehovot 76-100, Israel
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Abstract

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1. The effects of feeding meals, in amounts equivalent to ad lib. intake or to 75% and 50% restriction by intubation, were studied in chicks.

2. Growth estimated by body-weight gain and shank length was improved by tube feeding in the 50%-restricted chicks.

3. Tube feeding increased energy retention at all feeding levels and nitrogen retention in the restricted chicks only.

4. Body fat was increased in the full-fed chicks by intubation and decreased in the 50%-restricted chicks only.

5. Crop and gizzard weights were increased by food restriction and by intubation. Tube-feeding increased the weight of the small intestine at all feeding levels.

6. The activities of the digestive enzymes were lower in the pancreas and higher in the small intestine of the tube-fed chicks than in the voluntarily-fed ones at all feeding levels.

7. It is suggested that synthesis, secretion and stablity of the different pancreatic enzymes could be affected diversely by feeding regimens.

Type
Papers on General Nutrition
Information
British Journal of Nutrition , Volume 51 , Issue 1 , January 1984 , pp. 101 - 109
Copyright
Copyright © The Nutrition Society 1984

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