İvesi kuzularında doğum ağırlığının kalıtımı
Özet
In this research the heritability of birth weight was estimated by paternal halfsib correlation in Awassi sheep raised in Ceyianpinar State Farm(Urfa). The methods of The Analysis of Variance(ANOVA), The Minimum Variance Quadratic Unbaised Estimation(MiVQUE), The Maximum Likelihood(ML) and The Restricted Maximum Likelihood(REML) were used for calculating of variance components. According to these methods, heritability estimates were 0.22 ± 0.09, 0.37 ± 0.013, 0.37 ± 0.013 and 0.22 ± 0.09 respectively. While the methods of MIVQUE and ML give same and the highest values the methods of ANOVA and REML give same and low values. According to these results, it was concluded that the heritability of birth weight of Awassi sheep was moderate and sufficient for genetic improving of this trait. Key Words : Awassi, birth weight, heritability, variance component estimates.