Article
Effect of high ambient temperature and naked neck genotype on performance of dwarf brown-egg layers selected for improved clutch length.
British poultry science - 1 Jun 2004
Chen C F, Bordas A, Gourichon D, Tixier-Boichard M
Abstract excerpt
1. Two experimental lines of dwarf brown-egg layers selected on clutch length were reciprocally crossed. In total, 288 hens, from three genotypes: L1, purebred normally feathered (121 hens), F1, crossbred and heterozygous for the NA mutation (99 hens) or L2, purebred homozygous for NA (68 hens) were housed in three climatic rooms at 22 degrees C and three climatic rooms at 32 degrees C. 2. Body weight, daily egg...
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