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Estimates of genetic parameters and phenotypic, genetic and environmental trends of some reproductive traits in Gir cattle



Estimates of genetic parameters and phenotypic, genetic and environmental trends of some reproductive traits in Gir cattle



Arquivo Brasileiro de Medicina Veterinaria e Zootecnia 51(4): 371-376



Genetic parameters and phenotypic, genetic and environmental trends for age at 1st calving and calving interval of Brazilian Gir dairy cattle were estimated using multivariate derivative-free restricted maximum likelihood (MTDFREML) with an animal model. The data used were collected at the Arquivo Zootecnico Nacional (Brazil) between 1960 and 1995.

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Accession: 003435738

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