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Sex-specific Association of a SNP in the ADIPOR2 Gene with Carcass Traits in a Paternal Broiler Line

Friday, August 22, 2014
Posters (The Westin Bayshore)
Lana T. Fernandes , EMBRAPA Swine and Poultry, Concórdia, Brazil
Thaís F. Godoy , University of Sao Paulo, Piracicaba, Brazil
Vinicius H. Silva , University of Sao Paulo, Piracicaba, Brazil
José R. Pandolfi , EMBRAPA Swine and Poultry, Concórdia, Brazil
Maurício E. Cantão , EMBRAPA Swine and Poultry, Concórdia, Brazil
Jane O. Peixoto , EMBRAPA Swine and Poultry, Concórdia, Brazil
Luiz L. Coutinho , Universidade de São Paulo/Esalq, Piracicaba, Brazil
Mônica C. Ledur , EMBRAPA Swine and Poultry, Concórdia, Brazil
Abstract Text: This study reports the association of a polymorphism in the ADIPOR2 gene with broiler carcass traits. Chickens (n= 1352) were genotyped by PCR-RFLP. The association was performed with QxPaK software using a mixed model including sex, hatch and SNP as fixed effects, and the infinitesimal and residual as random effects. The additive and additive + dominant effects of the SNP were tested, including their interaction with sex. The SNP additive effect was significant for wing sticks weight, wings weight, drumstick muscle weight and yield, thigh muscle yield, thigh and drumstick muscle weight and yield only in females, and breast skin weight in males. The SNP additive+dominant effect was significant for breast skin and drumstick yields only in males. This study indicates great potential of the ADIPOR2gene in increasing muscle weight and yield and reducing subcutaneous fat, which are relevant issues in poultry breeding.

Keywords:

chicken

subcutaneous fat

muscle development

See more of: Posters: Poultry Breeding (Group 1)
See more of: Species Breeding: Poultry
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