Abstract
Three groups of Holstein bulls were used to determine the effects of repeated electroejaculation and tranquilization on semen quality and bull behavior. Group 1 was collected with the artificial vagina. Groups 2 and 3 were collected by electroejaculation, Group 3 being tranquilized prior to collection.Groups 2 and 3 were significantly higher than Group 1 (P<0.01) in volume of semen per ejaculate and pH and significantly lower (P<0.01) in number of live sperm per milliliter. Group 3 was significantly lower (P<0.01) than Group 2 in pH and significantly higher (P<0.01) in live sperm per milliliter, live sperm per ejaculate, and total sperm per milliliter. Group 2 was significantly lower (P<0.05) than Group 1 in live sperm per ejaculate. Samples from Groups 1 and 3 lived significantly longer (P<0.05) than samples from Group 2. No significant differences among groups were found for initial rate of movement, percentage of motile sperm, or per cent abnormal sperm. These results indicate that tranquilization aided in collection of higher-quality semen by electroejaculation.Tranquilization was effective in reducing straining and tetany in bulls collected by electroejaculation. Tranquilized animals were consistently easier to electroejaculate. No serious side effects resulted from repeated tranquilization.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
