Veterinary management of an artificial insemination center containing bluetongue seropositive bulls
Regular serologic and virologic test for bluetongue virus were conducted at approximately six months intervals on bulls residing in a small artificial insemination center in northern Utah. Both bluetongue seropositive and seronegative bulls resided in the herd. Of 367 bluetongue agar gel immunodiffusion tests conducted on 71 bulls and two steers during the 4 1/2 year study period, 201 test results (55 per cent) were positive. Concurrently, whole blood was tested for detectable bluetongue viremia and all results were negative. This study indicates that positive bluetongue serology is poorly correlated to bluetongue viremia and suggests that persistent bluetongue viremia is an uncommon event. Because bluetongue seronegative animals did not seroconvert or become viremic, the study also suggest that artificial insemination centers may be located in certain areas within bluetongue enzootic regions with minimal risk of bluetongue transmission
Main Authors: | , , , , |
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Format: | biblioteca |
Published: |
Richmond, Va. (EUA)
1986
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Subjects: | VIROSIS, LENGUA AZUL DE LOS OVINOS, TORO, INSEMINACION ARTIFICIAL, TRANSMISION DE ENFERMEDADES, |
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Summary: | Regular serologic and virologic test for bluetongue virus were conducted at approximately six months intervals on bulls residing in a small artificial insemination center in northern Utah. Both bluetongue seropositive and seronegative bulls resided in the herd. Of 367 bluetongue agar gel immunodiffusion tests conducted on 71 bulls and two steers during the 4 1/2 year study period, 201 test results (55 per cent) were positive. Concurrently, whole blood was tested for detectable bluetongue viremia and all results were negative. This study indicates that positive bluetongue serology is poorly correlated to bluetongue viremia and suggests that persistent bluetongue viremia is an uncommon event. Because bluetongue seronegative animals did not seroconvert or become viremic, the study also suggest that artificial insemination centers may be located in certain areas within bluetongue enzootic regions with minimal risk of bluetongue transmission |
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