Evaluation of the genetic parameters of fattening traits of young cattle of different genotypes
2000
Miscevic, B. | Lazarevic, R. | Aleksic, S. | Petrovic, M. | Josipovic, S. (Institute for Animal Husbandry, Belgrade - Zemun (Yugoslavia))
The research included the more important fattening traits and their contribution to the general productivity depending on the optimal use of available genotypes of young bulls. The research included data related to carcasses of young bulls - crossbreds R1 generation of (Yugoslav) Domestic Spotted and Charolais (35) and Limousine (38) bulls. The results of the investigation of the effect of genotype on major fattening traits and carcass quality indicate a significant deviation from the general average in favor of the crossbreeds compared to the (Yugoslav) Domestic Spotted breed. Results of the investigation concerning fat and bones in half sides show that young bulls of (Yugoslav) Domestic Spotted breed deposited more fat tissue compared to crossbreds of fattening breed. Increased values of heritability in relation to rib eye area and carcass weight indicate the fact that genetic variance for this trait exists. The observed trends in evaluation of genetic correlation of investigated traits reflected through high marks of the heritability coefficient indicate that the selection based on carcass weight, surface of the back muscle, meat, fat and bone content can be a reliable indicator for the improvement of the yield and quality of meat from young bulls of (Yugoslav) Domestic Spotted breed.
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