estimation of genetic parameters for some economic traits of azerbaijan native fowls
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Estimation of Phenotypic and Genetic Parameters of Egg Quality Traits of Azerbaijan Native Hens
The egg quality is one of the most important economic factors for layers that are crucial for hatchability and marketing. Given the low number of egg quality traits records, one of the approaches in estimating phenotypic and genetic parameters is multi trait analysis. The aim of this study was to estimate the phenotypic and genetic parameters of west Azerbaijan native hens egg quality traits by...
متن کاملestimation of parameters and genetic trend of economic traits in native chickens of west azerbaijan province
the data of this study were collected by indigenous chicken breeding centers in the west azerbaijan for 11 generations. the (co) variance components, heritability's, correlations between traits and breeding values were estimated by multi-trait animal model using wombat software. the genetic trends of traits over 11 generations of selection, using average function of breeding values per gen...
متن کاملestimation of genetic and phenotypic parameters for internal egg quality traits of azerbaijan native chickens
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متن کاملEstimation of genetic parameters for productive and reproductive traits in Esfahan native chickens
The main aim of this research was to estimate the genetic and phenotypic parameters for productive and reproductive traits of Esfahan native chickens. Traits included body weights at hatch (BW1), 8 weeks of age (BW8), 12 weeks of age (BW12), and at sexual maturity (WSM)], age at sex maturity (ASM), egg number (EN), average egg weight (AEW) in the first 12 weeks of production, and egg production...
متن کاملestimation of maternal effects on some economic traits of north iranian native fowls using different models
this study was conducted to investigate direct and maternal effects on some economic traits in north iranian native fowls. traits considered were body weight at 1 day of age (bw1), body weight at 8 weeks of age (bw8), body weight at 12 weeks of age (bw12), egg number (en) during the first 12 weeks of laying period, egg weight at 1st day of laying (ew1), mean egg weight at 28th, 30th and 32nd we...
متن کاملestimation of economic values for production traits of iranian native fowls
using the available information from mazandaran native fowl breeding center as well as studying costs and revenues of poultry, effective factors on profit and the parameters which required to design a model were studied. sensitivity of the model to changes of each parameter in the model tested. the model of this study can be used in similar breeding plans in other provinces after minor changes ...
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عنوان ژورنال:
دانش و پژوهش علوم دامیجلد ۸۷، شماره ۳، صفحات ۱-۷۸
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