Evaluation of Japanese Quail Egg-Yolk Extender in Cryopreservation of Cockerel Semen

The purpose of this study was to examine the effects quail egg yolk extenders in cryopreservation cockerel semen. Ten Venda cockerels were chosen randomly and semen collected twice a week with two-day rest period using an abdominal massage technique. Immediately following collection, samples evaluated for microscopic parameters (sperm cell motility, viability, morphology, abnormalities) as well macroscopic concentration, volume, color, pH). Afterward, divided into two fractions: One diluted Japanese egg-yolk at different concentrations (0, 5, 10, 15, 20%) one chicken (20%). Semen sperm motility CASA prior freezing programmable freezer. freezing, stored 196°C until thawing. thawed motility. data analyzed general linear model statistical analysis software 9.4. Both used cockerels' normal acceptable. 10% extender resulted significantly higher total (39.7±2.6%) when compared 0, 20% concentrations, which 9.0±2.7, 22.9±2.7, 22.1±2.7 32.1±2.7% respectively. Moreover, 39.7±2.6%, than 31.7±2.6% obtained recommended used. In conclusion, is suitable concentration that can be cryopreserve