| Abstrakt: |
The present investigation was undertaken on semen quality parameters and their interrelationships on three Gir bulls (5 years old) maintained at Cattle Breeding Farm, Junagadh. Semen ejaculates (n=30, 10/bull) were collected using artificial vagina (Danish model) once weekly and were soon evaluated for physico-morphological attributes. The ejaculate volume, sperm concentration, mass motility (0-5 scale), individual sperm motility, sperm viability, sperm abnormality, HOST reactive spermatozoa, and acrosome integrity were found to be 7.93±1.72 ml, 1376.90±55.21 million/ml, 3.70±0.08, 83.67±0.93 %, 87.03±0.74 %, 9.87±0.52 %, 90.17±0.47 % and 75.30 ±1.07 %, respectively. There was a significant (P<0.01) difference only in ejaculate volume and sperm concentration between bulls. The sperm concentration, sperm motility, viability, acrosome integrity and plasma membrane integrity were highly significantly and positively (r= 0.512 to 0.880; P<0.01) interrelated and all of them had significant negative correlations with sperm abnormality (r= -0.498 to -0.827). The ejaculate volume did not show significant correlations with any of the other traits studied. The semen quality in general was within normal physiological limits of the breed. [ABSTRACT FROM AUTHOR] |
