The expertise of inseminators in performing Artificial Insemination (AI) is one of the five determining factors of AI success. However, the characteristics of inseminators that play the most significant role in AI success have not been identified. Therefore, testing was conducted on dairy cows in Lembang to examine the influence of inseminator factors (X1), semen dose (X2; 25 million, 20 million, and 15 million sperm/straw), and bull type (X3; Farrel and Forsa) on the conception rate (CR), using covariate regression with parity levels as the accompanying variable due to different acceptor cow parities. The test results showed no interaction between these factors, indicating that bull type and semen dose do not affect the pregnancy rate. However, the inseminator factor plays a role in determining the pregnancy rate. Therefore, subsequent dose tests employed covariate regression, with inseminators considered as covariates.

Testing among inseminators revealed differences in character types and performance due to variations in academic backgrounds (education) and technical skills (training, duration of work). 67% of test inseminators fell into the category of high-performing professional inseminators (CR 59.26-77.27%), while 33% were categorized as moderately performing professional inseminators (CR 53.97-55.22%). The role of education was outweighed by training, with a correlation value of 83.5% R. This indicates that there are other factors influencing CR by 16.5%. Further investigation is recommended to identify these other factors, and training is needed to enhance AI execution accuracy among inseminators.

From the various discussed factors, the following conclusions can be drawn:

1. Inseminator characteristics play a role in the success of artificial insemination, particularly the variable of training significantly affects the pregnancy rate, with a correlation value of R = 0.835.
2. Factors such as sperm dose, bull type, and their interaction do not affect the pregnancy rate.
3. Differences in character types and performance exist among inseminators due to variations in academic background (education) and technical skills (training, work duration).
4. 33% of test inseminators are categorized as moderately performing professional inseminators (CR 53.97-55.22%), while 67% are categorized as high-performing professional inseminators (CR 59.26-77.27%).

References

Herawati, Tati. 2012. The Role of Inseminators in the Success of Artificial Insemination in Dairy Cattle. Journal of Agricultural Informatics. (Online). Vol. 21 No.2, December 2012: 81-88. (https://www.litbang.pertanian.go.id/warta-ip/pdf-file/vol-21-No2 2012/TatiHerawatiVol21No2-2012.pdf accessed February 15, 2018).[:]