Author(s) |
Johnson, Raymond Joseph
Farrell, D J
Cumming, R B
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Publication Date |
1983
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Abstract |
The biological effects of feed restriction were investigated in experiments with both layer-type and broiler breeder hens. Major emphasis was placed on the elucidation and clarification of alterations in (a) the important production characteristics, (b) body and liver composition, and (c) energy metabolism, primarily from the aspect of the effects due to feed restriction during rearing. Two experiments which examined in detail the influence of feed restriction during rearing on the production of layer-type birds were carried out. ... The studies presented in this thesis have clarified the effects of feed restriction on the production characteristics of poultry, and have found that biological alterations may occur due to appropriate restriction programmes. Although certain alterations in energy and nitrogen metabolism were illustrated, these may play only a minor role in the overall production effects observed due to restriction, and may be manifestations of an altered production per se. It was postulated that simple time-scaled relationships may determine the production response to a feed restriction programme.
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Link | |
Language |
en
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Title |
Physiological and Nutritional Aspects of Restricted Feeding of Poultry
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Type of document |
Thesis Doctoral
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Entity Type |
Publication
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