Insemination of cattle with semen from a bull transiently infected with pestivirus
Open Access
- 1 February 1997
- journal article
- Published by Wiley in Veterinary Record
- Vol. 140 (5), 124-127
- https://doi.org/10.1136/vr.140.5.124
Abstract
When 73 heifers (60 of which were seronegative to pestivirus) were inseminated with pestivirus-contaminated semen from a transiently infected bull, the conception rate to a single insemination was found to be normal (65 per cent). Only three animals became systemically infected, as determined by viraemia and seroconversion. Pestiviru was isolated from the reproductive tracts of two of these heifers when they were slaughtered 42 or 43 days after insemination. Although the initial incidence of infection was low, a cycle of secondary transmission occurred approximately 29 days after insemination, with a further eight heifers (all seronegative) becoming infected from one group of 11 seronegative and four seropositive animals.Keywords
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