SUMMARY The five hundred and thirty eight records pertaining to 173 Murrah buffaloes calved during the year 1984-1992 at Buffalo Reseach Centre, CCS Haryana Agricultural University, Hisar were considered for the estimation of phenotypic correlations between five measures of persistency and production efficiency traits. Lactation milkyield had positive phenotypic correlation (0.07 to 0.53) with all the measures of persistency. Peak yield had negative relationship with all the measures of presistency. Wet average, milk yield per day of age at second calving and milk yield per day of calving interval had positive correlations with the persistency calculated by ratio method. 

S. S Dhaka, S. R Chaudhary, B. L Pander

Proceedings of the World Congress on Genetics Applied to Livestock Production, Volume 24: Sheep and goats (fibre); sheep and goats (meat and milk); poultry; horses; buffaloes., , 477–480, 1998
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