Sire Evaluation Using Animal Model and Conventional Methods in Murrah Buffaloes

  • Jain, A. (National Bureau of Animal Genetic Resources) ;
  • Sadana, D.K. (National Bureau of Animal Genetic Resources)
  • Received : 1999.10.09
  • Accepted : 2000.04.28
  • Published : 2000.09.01


First lactation records of 683 Murrah buffaloes maintained at National Dairy Research Institute, Karnal, were used for comparing the sire evaluation for age at first calving, first lactation 305-day or less milk yield and first service period. The sires were evaluated using Simple daughters average, Contemporary comparison, Least-squares and BLUP methods. The BLUP evaluations were obtained under single-, two- and three-trait individual animal models. The results revealed that for taking a decision regarding the method of sire evaluation to be used for selecting sires with high breeding values, criteria of the rank correlation could be misleading and comparison of the selected sires is likely to give a veritable picture. The Best Linear Unbiased Prediction method under multi-trait animal model incorporating first lactation milk yield with first service period as a covariable and age at first calving in the model was found to be more efficient and accurate for sire selection in Murrah buffaloes.


Animal Model;Multi-Trait;Murrah Buffaloes;Sire Evaluation

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