The Effect of Inseminator Performance on The Success of Artificial Insemination in Friesian Holstein Crosbred Cows

The study aims to determine the effect of inseminator performance on the success of artificial insemination of Friesian Holstein crossbred cows. In this study, the eight inseminators were observed with the criteria: at least 1 year of AI experience, a minimum of 30 AI doses, an official inseminator certificate, and adequate skills in performing AI. The parameters observed were Conception Rate (CR), Pregnancy Rate (PR), Inseminator Success Rate, Service per Conception (S/C), Calving Rate (CvR), and Sex Ratio. The data were analysed descriptively and using the chi-square and Kruskal-Wallis methods. The results showed that the highest conception rate (CR) was recorded for inseminator 7 (48.78%), whereas the lowest was observed for inseminator 8 (6.66%). The highest pregnancy rate (PR) was observed for inseminator 6 (57.77%), while the lowest was observed for inseminator 8 (13.33%). Overall, insemination success was also greatest for inseminator 6 (50.94%) and lowest for inseminator 8 (12.12%). The lowest service per conception (S/C) value was achieved by inseminator 7 (1.04). The highest calving rate (CvR) was found in inseminator 6 (51.58%), whereas the lowest was recorded for inseminator 3 (14.65%). These findings indicate that pregnancy success is strongly influenced by inseminators' experience, technical ability, and skills in performing artificial insemination.