Estimates of genetic trend for carcass traits in a commercial broiler line
نویسندگان
چکیده
منابع مشابه
Estimates of genetic trend for carcass traits in a commercial broiler line
Data from the slaughter of 24,001 chickens that were part of a selection program for the production of commercial broilers were used to estimate genetic trend for absolute carcass (CW), breast meat (BRW), and leg (LW) weights, and relative carcass (CY), breast meat (BRY), and leg (LY) weights. The components of (co)variance and breeding values of individuals were obtained by the restricted maxi...
متن کاملEstimates of genetic trend for carcass traits in a commercial broiler line.
Data from the slaughter of 24,001 chickens that were part of a selection program for the production of commercial broilers were used to estimate genetic trend for absolute carcass (CW), breast meat (BRW), and leg (LW) weights, and relative carcass (CY), breast meat (BRY), and leg (LY) weights. The components of (co)variance and breeding values of individuals were obtained by the restricted maxi...
متن کاملComparison of different models to estimate genetic parameters for carcass traits in a commercial broiler line.
The effect of genetic and non-genetic factors for carcass, breast meat and leg weights, and yields of a commercial broiler line were investigated using the restricted maximum likelihood method, considering four different animal models, including or excluding maternal genetic effect with covariance between direct and maternal genetic effects, and maternal permanent environmental effect. The like...
متن کاملHeritability and genetic correlation estimates for performance and carcass and body composition traits in a male broiler line.
The current research was conducted to estimate the heritability coefficients and the genetic correlations for performance and carcass and body composition traits in a single sire broiler line. The performance traits analyzed were BW at 38 d, ultrasound records of pectoral muscle depth, feed intake, feed conversion ratio, and BW at 42 d. The carcass traits analyzed were eviscerated BW, breast we...
متن کاملthe impact of maternal effects on genetic parameters of performance traits in a commercial broiler dam line
in this study, the effect of maternal additive genetic and environment on body weight at 6 weeks (bwt6w), breast width (hbrs), carcass weight (carcwt), breast weight (brswt), blood hematocrit value (hem), residual feed intake (rfi), daily feed intake (dfi) and average daily gain (adg) were investigated in a commercial broiler dam line. with and without maternal effects, six different animal mod...
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ژورنال
عنوان ژورنال: Genetics and Molecular Research
سال: 2009
ISSN: 1676-5680
DOI: 10.4238/vol8-1gmr551