Genetic-economic evaluation of traits in a broiler enterprise: reduction of food intake due to increased growth rate |
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Authors: | H Pasternak B A Shalev |
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Affiliation: | 1. Agricultural Engineering Institute , Agricultural Research Organization , PO Box 6, Bet Dagan , 50 250 , Israel;2. Ministry of Agriculture, Extension Service, Poultry Division , PO Box 7054, Hakirya , Tel Aviv , 61 070 , Israel |
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Abstract: | Separate mathematical models for food consumption and growth pattern of broilers were used to derive a combined model to estimate food consumption during the growth period. The model was used to show that each reduction of one day in reaching a fixed body weight would reduce food consumption per bird by 50 to 60 g. Broiler lines with a slow growth rate at an early age and rapid growth rate near market age require appreciably less food overall. This feature should be considered in breeding and feeding programmes. |
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