Vol. 10, Special Issue 3 (2021)

Author(s):
S Jaishankar, P Tensingh Gnanaraj, T Sivakumar, BSM Ronald and A Subramanian

Abstract:
A study was done to assess the influence of age on semen quality of Large White Yorkshire boar. It was recorded that the overall mean reaction time and ejaculation time of boar was 165.85 ± 7.87 and 509.81 ± 9.67 seconds. The overall mean semen volume in Large White Yorkshire boar was 208.92 ± 2.52 ml and it was observed that age had a significant influence on semen volume. The semen volume had increased from 14 months of age up to 30 months. The overall mean spermatozoa concentration and total spermatozoa count were 314.99 ± 3.58 million/ml and 65.84 ± 0.94 billion respectively. Age had a significant influence (P<0.01) on spermatozoa concentrations and total spermatozoa count. The overall mean abnormal spermatozoa percentage was 8.49 ± 0.16. This study showed that age of boar had a significant impact on semen quality.