It is well known that sperm motility is the most important parameter in measuring sperm quality. Sperm motility can be measured manually by a medical veterinarian or using Computer Aided Sperm Analysis (CASA) system. Measuring bull sperm motility manually is the most popular method nevertheless it has major drawbacks which are subjective and high variability. CASA gives consistent results, hence it is an expensive system. Therefore, an alternative method is required. In this paper, a method to measure bull sperm motility was proposed, It was using ellipse detection and sperm head direction angle. The video samples were taken using a digital microscope. Compared with the manual assessment by medical veterinarians, the proposed method gave the average absolute margin of 5.16% which surpassed the previous method which gave 10.69%.
Variation among breed and seasons were speculated influence to the quality of fresh semen bull. The aim of this research was to evaluate the quality of fresh semen and the potential of frozen semen production madura bull in rainy and dry seasons at Lembang Artificial Insemination Center (AIC). This research used secondary data of semen production from January to December 2015. In this research were used 5 bulls. The observed variables for macroscopic characteristics of fresh semen were volume, color, pH, and consistency, and microscopic characteristics of fresh semen were mass movement, motility, and concentration of spermatozoa. It could be concluded that the quality of fresh semen and the potential of frozen semen production of several madura bulls were relatively different in the rainy and dry seasons.
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