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Phenotypic and genetic parameters of age at first calving, first lactation milk yield and some measures of efficiency of production in Murrah buffaloes



Phenotypic and genetic parameters of age at first calving, first lactation milk yield and some measures of efficiency of production in Murrah buffaloes



Indian Journal of Animal Sciences 64(8): 880-883



The data on 1647 Murrah buffaloes from 4 military dairy farms over 34 years was used to investigate the phenotypic and genetic parameters of early economic traits. The effect of firms and years was significant for all the traits while that between seasons was only significant for first lactation milk yield and milk yield/day of first calving interval. The phenotypic (0.65 to 0.78) and genetic correlations (0.89+-0.05 to 0.98+-0.05) among first lactation milk yield, milk yield/day of first lactation length and milk yield/day of first calving interval were positive, high and significant.

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Accession: 009185178

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