Study was carried out to find out the association between physical traits and production characteristics in 25 Surti buffaloes. Out of the six traits studied only height at withers (r=-0.446) and distance between pin-bones (r=+0.455) were found to be significantly related the milk yield but their regression coefficient was of little practical value. None of the other characters studied showed any association with milk yield or fat percent in Surti buffaloes.

Six Murrah bulls of N.D.R.I. progeny testing program set V were ranked on the basis of first lactation performance of their daughters. Bull No. 1039 ranked first while animal No.393 ranked second. The index value of the top-ranking bull was 15.3 % above the herd average and this bull was recommated in the herd for a period of two producing the future young sires

The incidence of twinning in Nili-Ravi buffaloes was observed in 1,340 calvings at the Livestock Experiment Station, Bakadurmagar district, Okara, during a period of 9 1/2 years. The twinning rate was found to be 0.298 % and the incidence of twin birth had no adverse effect on subsequent post-partum productive and reproductive performance. However, twinning in buffalo is undesirable due to reduction in female progeny