Vol. 9, Special Issue 7 (2020)

Author(s):
Sarswat Chandra Shekher, Sharma Sunanda, Nehra Kuldeep, Sharma Prakash Chandra, Parashar Mukesh Chandra and Vaishanv CS

Abstract:
This study was conducted to evaluate the effect of exogenous melatonin administration on freezability of Sirohi buck semen during non-breeding seasons. Twelve sexually mature adult male Sirohi bucks aged between 2-3 years were selected for this study. Treated (T) animals (n=06) were administered single subcutaneous injection of melatonin @18mg/50kg body weight. During first non-breeding season, the post thaw microscopic seminal parameters progressive motility (37.50 ± 1.241 & 50.42 ± 0.948), live sperm count (51.21 ± 0.458 & 69.25 ± 0.382), dead sperm count (39.92 ± 0.611 & 21.75 ± 0.422), abnormal sperm count (8.88 ± 0.243 & 9.00 ± 0.170), curled tail sperm count (35.55 ± 0.759 & 51.00 ± 0.715) were found significant at p<0.05 in between control and treated group. During second non-breeding season, the post thaw microscopic seminal parameters progressive motility (29.59 ± 1.427 & 58.75 ±1.058), live sperm count (42.25 ± 0.789 & 66.90 ±0.779), dead sperm count (48.63 ± 0.844 & 25.55 ± 0.662), abnormal sperm count (9.13 ± 0.125 & 7.57 ± 0.204), curled tail sperm count (36.15 ± 1.114 & 61.36 ± 0.773) were found significant at p<0.05 in between control and treated group. Exogenous melatonin treatment significantly improved the post thaw motility, live sperm count, dead sperm count, abnormal sperm count and coiled sperm count. In conclusion, melatonin administration improved freezability of Sirohi bucks semen during non-breeding seasons.