Characteristic and Kinematics of Bali-Polled Bull Sperms

The purpose of this study was to determine the characteristics and kinematics of Bali-polled bull sperm to identify reproductive potential. Semen collection of Bali-polled bull was conducted once a week using an artificial vagina. The semen was proceeded until the frozen semen. Parameters were motility, motility progressive, kinematics sperms, viability, abnormality membrane integrity, and acrosome integrity. The Bali-polled bull semen was analyzed by using CASA with the Sperms Vision Version 3.7.5 program. The results in this study showed that sperms motility in Bali-horned bull was significantly lower (P<0.01) than Bali-polled bull, Brahman, Limousine, and Simmental. The sperms viability in Bali-horned and polled bull was significantly lower (P<0.01) compared to other bull breeds. The membrane integrity and acrosome integrity of Bali-polled bull sperms was significantly higher (P<0.01) than in Bali-horned bull. DCL, DAP, and DSL of Bali-polled bull were significantly higher (P<0.01) than Bali-horned bull. VCL, VAP, and VSL of Bali-horned bull were significantly lower (P<0.01) than Bali-polled, Simmental, Limousine, and Brahman bull. Based on the results of this study, it can be concluded that Bali-polled bull had good sperm characteristics and kinematics compared with various breeds so that the Bali-polled bull can have the potential to become superior bulls to contribute to the strategies for developing Bali bull as a national beef bull contributor.