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Estimates Of Genetic Parameters For Different Body Weights Andmuscle And Fat Depths Of Karayaka Lambs, Yüksel Aksoy, Zafer Ulutaş, Uğur Şen, Emre Şi̇ri̇n, Azi̇z Şahi̇n

Turkish Journal of Veterinary & Animal Sciences

In the current paper the direct additive and maternal genetic effects on birth, weaning (at 90 days of age), and scanning (at 20 weeks of age) weights and muscle and fat depths of the ribeye area in Karayaka lambs were investigated. Analyses were carried out by the restricted maximum likelihood approach, fitting 6 animal models with various combinations of direct and maternal effects. The best model was chosen after testing for improvement in the log-likelihood values. Direct heritability (h2d) for all traits decreased when maternal genetic effects were included in the models. The maternal heritability (h2m) ranged from 0.15 to …