Estimation the Genetic Parameters for Age at the First Calving and Calving Interval in Romanian Spotted, Simmental
Keywords:
animal model, cows, genetic parameters, reproduction traitsAbstract
The objective of this study was to estimate the genetic parameters for reproductive traits in Romanian Spotted, Simmental type cattle breed using animal model. The data of reproduction traits were from Romanian Breeding Association Romanian Spotted, Simmental type. The age at the first calving was 889.82±2.79 days and first calving interval was 391.55±2.08. The heritability value for age at the first calving was 0.25 and for calving interval was 0.14. The breeding values of cows with records for age at first calving were between -77.52 and 62.60 and for first calving interval between -31.149 and 44.55. Improvement the reproduction traits increase the profitability of farms.
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