Phenotypic Correlations between Live Body Weight and Carcass Traits in Arbor Acre Breed of Broiler Chicken
نویسنده
چکیده
This study was aimed at determining the relationship between live body weight and carcass traits in Arbor Acre broiler chicken. Fifty day-old broiler chicks were purchased and raised on deep litter system until 56 days of age. At maturity, ten birds were randomly selected for carcass evaluation. The analyzed data showed that live weight has statistically significant (P<0.01) positive phenotypic correlation with dressing weight, eviscerated weight, carcass weight, breast muscle weight, back weight, thigh weight and drumstick weight. There was also statistically significant (P<0.01) positive regression coefficient between live weight and all the carcass traits. In addition, significant (P<0.01) positive phenotypic correlations among the various carcass traits were indicated in this study. The obtained results showed that all the carcass traits measured were good indicators of live weight, and that anyone of them could be used to predict its value. There is a gene linkage effect operating on these traits. Therefore, in a situation whereby the live weights of birds are not measured before slaughter, the weight of any of the component parts could be used to determine the live weight since there was strong association between live weight and all the carcass traits.
منابع مشابه
توارث برخی از اندازههای بدن و خصوصیات لاشه در مرغ بومی و آویخته آن با یک نژاد خارجی
Data of 1200 male and female chicks from 90 sires were used to estimate the heritabilities as well as genetic and phenotypic correlations of body measurements and carcass characteristics in three genetic groups, namely, crosses of native chickens with an exotic breed (group A), native chickens which were selected for two generations on the basis of 8th week body weight (group B) and a native co...
متن کاملتوارث برخی از اندازههای بدن و خصوصیات لاشه در مرغ بومی و آویخته آن با یک نژاد خارجی
Data of 1200 male and female chicks from 90 sires were used to estimate the heritabilities as well as genetic and phenotypic correlations of body measurements and carcass characteristics in three genetic groups, namely, crosses of native chickens with an exotic breed (group A), native chickens which were selected for two generations on the basis of 8th week body weight (group B) and a native co...
متن کاملAllelic Polymorphism of GH, GHR and IGF-1 Genes and Their Association with Growth and Carcass Traits in Mazandaran Native Fowl
This investigation aimed to study polymorphism of growth hormone (GH), growth hormone receptor (GHR), and insulin like growth factor 1 (IGF-1) genes and their associations with growth and carcass traits in Mazandaran native chicken. 200 male chicks were reared and slaughtered at 12 weeks of age. Traits including live weight at 4, 8 and 12 weeks of age, body weight and weights of heart, liver, g...
متن کاملThe Effect of Dietary Tarragon (Artemisia dracunculus) and Peppermint (Mentha piperita) Leaveson Growth Performance and Antibody Response of Broiler Chickens
A semi-field study was carried out to evaluate the effect of two medicinal herbs, individually and in combination, on growth performance, carcass traits, nutrient digestibility and immune response of broiler chickens. A total of 384 one-day-old straight-run Arbor Acres broiler chickens were allocated into 24 floor pens prepared in a commercial broiler house. Pen-groups were fed one of the foll...
متن کاملJoint analysis of beef growth and carcass quality traits through calculation of co-variance components and correlations.
A joint growth-carcass model using random regression was used to estimate the (co)variance components of beef cattle body weights and carcass quality traits and correlations between them. During a four-year period (1994-1997) of the Australian "southern crossbreeding project", mature Hereford cows (N = 581) were mated to 97 sires of Jersey, Wagyu, Angus, Hereford, South Devon, Limousin, and Bel...
متن کامل