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Superiority of naked neck over normally feathered white broilers for growth,carcass traits and blood biochemical parameters in tropical climate

Indian Agricultural Research Journals

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Title Superiority of naked neck over normally feathered white broilers for growth,carcass traits and blood biochemical parameters in tropical climate
 
Creator Patra, B N
S Bais, R K
Prasad, R B
Singh, B P
Sharma, Deepak
Bhushan, Bharat
 
Subject Body weight; Blood cholesterol parameters; Carcass traits;Climate; Feed conversion ratio; Naked neck broilers
 
Description A broiler population segregating for the naked neck (Na) gene was used to evaluate its effect on fast growing broilers at heat stress. An experimental stock comparable to those of modem broilers was established by backcrossing to white synthetic male and female lines. Mating between heterozygous (Ndna) males and females produced normally feathered (na/na), heterozygous (Na/na) and homozygous (Na/Na) chicks for the present study. Day-old to 7-week-old white broilers of 3 genotypes, viz. normally feathered (na/na), heterozygous naked neck (Na/na) and homozygous naked neck ( Na/Na ) were compared for heat dissipation, growth performance, body conformation traits, blood biochemical parameters and carcass traits in tropical climate. The naked neck broilers had significantly higher body weight and better feed conversion ratio than na/na broilers. The Na/Na or Na/na broilers exhibited higher giblet yield, blood loss and lower feather mass
compared to na/na broilers. The results indicated that the reduction in feather coverage in Na/na and Na/na broilers facilitates better heat dissipation with more body weight gain, better FCR and carcass traits compared to normal broilers.
 
Publisher Directorate of Knowledge Management in Agriculture
 
Date 2005-03-15
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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Format application/pdf
 
Identifier http://epubs.icar.org.in/ejournal/index.php/IJAnS/article/view/8132
 
Source The Indian Journal of Animal Sciences; Vol 75, No 3 (2005)
0367-8318
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAnS/article/view/8132/3163
 
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