Relationship among Body Weight, Scrotal Circumference and Sperm Quantity of Bali Bulls in Baturiti Artificial Insemination Center

Abstract

Bali cattle are one of the native cattle breeds in Indonesia as a meat producer. The objective of this study was to analyze the correlation between body weight and scrotal circumference and sperm quantity of Bali bulls. To accomplish this objective, primary and secondary data of Bali bulls in Baturiti Artificial Insemination (AI) Center, Bali from 2017 to 2019 were used in this research, consisted of scrotal circumference (SC), body weight (BW), semen volume (SV) and sperm concentration (SCon) (n = 9 bulls in productive age). Total Number Sperm (TNS) was calculated multiply value of SV and SCon. The data were analyzed statistically using Correlation Pearson Square. There was no significant correlation among body weight, scrotal circumference, and sperm quantity of Bali bulls in this research (P>0.05). Low positive correlation was found between BW with SC (0.296), very low positive correlation with SV (0.049), very low negative correlation with SCon (−0.089) and moderate positive correlation with TNS (0.427). Moreover, SC showed low negative correlation with SCon (−0.202), very low negative correlation with SV (−0.028) and low positive correlation with TNS (0.286). In conclusion, BW showed positive correlation SC, SV and TNS, but showed a negative correlation SCon. SC had positive correlation with TNS but they showed negative correlation with SV and SCon of Bali bulls.