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Genetic Parameters For Direct And Maternal Effects And Estimation Of Breeding Values For Birth Weight In Brown Swiss Cattle, Muammer Ti̇lki̇, Mustafa Saatci, Mehmet Çolak

Turkish Journal of Veterinary & Animal Sciences

Variance components, genetic parameters, and breeding values for birth weight in Brown Swiss cattle reared in Bahri Dağdaş International Agricultural Research Institute were estimated by REML-BLUP procedures using MTDFREML computer programme. Six different animal models were fitted for the trait ranging from a simple to the most comprehensive model. The most detailed model (model 6) provided the best fit to the used dataset. Heritability was higher in the model without maternal effect. Although maternal effect had a significant place for the data, environmental effect due to dam was not important. Heritability (h^2), maternal heritability (m^2), and the genetic correlation between …