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Genetic and environmental factors affecting size of body and body parts of turkeys. 3. The relation of gonad size to body weight and body measurements at three different ages



Genetic and environmental factors affecting size of body and body parts of turkeys. 3. The relation of gonad size to body weight and body measurements at three different ages



Poultry Sci 36(5): 1052-1057



Weight of the left gonad was obtained for 1161 Broad Breasted Bronze turkeys, of both sexes, killed at 8, 16 and 24 weeks of age. Heritability averaged 0.54 for testis weight and 0.26 for ovary weight. Genetic and phenotypic correlations with body weight and weights and measurements of body parts were positive for both sexes at 8 weeks of age. In the males, most of these correlations were also positive at 16 and 24 weeks. In the females, however, most of the genetic correlations at 16 weeks were negative and all were negative at 24 weeks, at an average level of -.428. Some of the possible implications of these findings, relative to body size and reproductive performance, are considered.

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Accession: 014059409

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DOI: 10.3382/ps.0361052


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