ESTIMATED BREEDING VALUES FOR 305 DAYS MILK YIELD TRAITS AND  SIRE RANKING OF NILI-RAVI BUFFALOES IN PAKISTAN

Muhammad Khalid Bashir; Abdul Waheed; Asim Faraz

doi:10.56825/bufbu.2025.4424621

Authors

Muhammad Khalid Bashir Department of Animal Breeding and Genetics, University of Agriculture, Faisalabad, Pakistan
Abdul Waheed Department of Livestock and Poultry Production, Bahauddin Zakariya University Multan, Multan, Pakistan
Asim Faraz Department of Livestock and Poultry Production, Bahauddin Zakariya University Multan, Multan, Pakistan

DOI:

https://doi.org/10.56825/bufbu.2025.4424621

Keywords:

Bubalus bubalis, buffaloes, EBV, Sire summary, 305-days milk yield, Mastitis, Nili-Ravi buffaloes, antibiotic sensitivity, Enrofloxacin

Abstract

Pedigree records of 2,881 buffaloes sired by 162 bulls from four Livestock Experiment Stations in Punjab, Pakistan were used. The objective of this study was to estimate the breeding values of animals for different traits to rank the sires and estimation of genetic trends. An Animal Model incorporating all known relationships was used for estimating variance components and breeding values. The estimation of (co)variances and breeding values were obtained using the Derivative Free Restricted Maximum Likelihood (DFREML) set of computer program. The JAA computer program was used for the estimation of reliability of breeding values. The mean estimated breeding value for 305-day milk yield (kg), was -23±287 kg, with an overall genetic trend of +3.5 kg ranged -3.4 to 10.2 kg among different herds. Sires were ranked based on their breeding values along with reliability. 305 days milk yield regression line showing negative genetic trend (Y = -58.084+3.870X). Genetic trend in the recent past decade was negative for the trait indicating that selection strategy especially for choosing young bulls in the artificial insemination program and progeny testing needs to be reevaluated.

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