The present study was conducted to determine the effect of increasing temperature humidity index (THI) on lactating Murrah buffalo. six buffaloes which were offered same basal diet and blocked by days in milk, milk yield parity. during May, June July with average THI 79.88, 80.57 85.36, respectively. Milk recorded twice a day at 06:00 18:00 h physiological parameters blood sampled 30th each mon...