Abstract
The aim of this study was to investigate the influence of antisperm Ig G and Ig A antibodies (ASA) from the sera and cervical mucus of cows on bulls sperm motility. A total of 64 cows was included in the study and samples of sera and cervical mucus were collected on the day of artificial insemination. Cows were of Busha breed or mix breed with Simmental. The presence of antisperm Ig G and Ig A antibodies was determined by indirect immunofluorescence method and according to these results, cows were divided in groups as follows: cows with high or low ASA titer in their sera and cows with high or low ASA titer in the cervical mucus. Influence of antisperm antibodies on sperm motility was further estimated by Computer Assisted Semen Analysis (CASA). Results demonstrated a significant difference in the influence of antisperm antibodies depending on their origin and titer.
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