Singh, M.P.Gayakwad, Harshal Rangrao2019-06-042019-06-042004-07http://krishikosh.egranth.ac.in/handle/1/5810106715The physiological, hematological responses alongwith distress symptoms of he-buffalo when exerting a draught of 0, 8, 10, 12 and 14% body weight at 1.5, 2.0 and 2.5 km/h speed of treadmill was studied for a period of 4 hrs. The CIAE animal treadmill was modified by providing 36 rollers (length 1000 mm, outer diameter 50 mm and thickness 5 mm) made up of mild steel pipes. At both the ends of these rollers ball bearings (25 mm diameter) are provided to facilitate smooth operation of treadmill equipped with 3 ply endless conveyor belt (7500 x 1000 x 20 mm). The treadmill could be operated upto a speed of 2.5 km/h with a vertical load (body weight of he-buffalo) of 600 to 700 kg. . The results showed that respiration rate, pulse rate and rectal temperature increased steadily with duration of exercise. The minimum and maximum percentage increase in respiration rate from its resting level during winter season at 1.5, 2.0 and 2.5 km/h speed were 126.35 - 651.26%, 106.31 - 517.70% and 116.27 - 557.69% respectively whereas these values for summer season were, 441.72 - 651.26%, 440.38 - 688.08% and 467.57 - 737.49% respectively. The minimum and maximum percentage increase in pulse rate from its resting level during winter season at 1.5, 2.0 and 2.5 km/h speed were 33.55 - 70.07%, 36.56 - 59.26% and 27.02 - 94.35% respectively whereas these values for summer season were noted as 68.89 - 81.77%, 73.79 - 88.49% and 82.33 – 84.49% respectively. The minimum and maximum percentage increase in rectal temperature from its resting level during winter season at 1.5, 2.0 and 2.5 km/h speed were 2.62 – 5.63%, 3.25 – 6.17% and 3.17 – 8.13% respectively whereas these values for summer season were noted as 4.12 – 6.25%, 4.51 – 6.47% and 5.80– 6.22% respectively. The fatigue score card showed the best performance upto 12% draught at 1.5 km/h followed by 2.0 km/h (upto 10% draught) and 2.5 km/h (upto 8% draught) respectively during winter season upto 4th hour of exercise. In case of summer season, 1.5 km/h showed best performance (upto 10% draught) followed by 2.0 km/h speed (upto 8% draught) and he-buffalo could run on treadmill only 3h (8% draught) and reached a state of fatigue at this draught in 4th hour. The minimum and maximum percentage decrease in total erythrocyte count, total leukocyte count, packed cell volume and hemoglobin from its resting level of he-buffalo was recorded as 9.6 to 24.3%, 14.59 to 36.02%, 2.77 to 12.82% and 1.81 to 22.22% respectively at 1.5 km/h speed. For 2.0 km/h speed these values were noted as 14.08 to 26.5%, 11.44 to 35.19%, 2.77 to 17.95% and 3.64 to 25.39% respectively and in case of 2.5 km/h speed, 9.18 to 28.46%, 11.02 to 37.77%, 5.55 to 20.51% and 3.64 to 19.04% respectively in winter season. In case of summer season, these values were recorded as 8.88 to 17.20%, 0.48 to 13.56%, 2.85 to 15.22% and 5.56 to 18.75% respectively at 1.5 km/h speed. For 2.0 km/h speed, these values were noted as 3.88 to 18.04%, 0.94 to 14.59%, 13.04 to 17.39% and 1.92 to 18.03% respectively and in case of 2.5 km/h speed, 9.18 to 15.29%, 1.35 to 18.45%, 2.56 to 13.04% and 1.85 to 28.57% respectively. The total erythrocyte count, leukocyte count, packed cell volume and hemoglobin indicated a variable but regular declining trend.ennullThesis