Publicação: Detection of leptospires in bovine semen by polymerase chain reaction
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Objective: In view of the considerable importance of venereal transmission of bovine leptospirosis, the objective of the present study was to compare the polymerase chain reaction (PCR), culture/isolation and serology to detect leptospire infection in bovine semen. Design: Blood for serologic examination and semen for bacterial culture and PCR were collected from 20 bulls at artificial insemination centres in Brazil. Each animal was sampled twice for serology. Result: Forty-five percent (9/20) of the serum samples collected showed agglutinin titers to serovar hardjo in the first sample and 25% (5/20) had agglutinin titers to serovar hardjo in the second sample. Eighty percent (16/20) of semen samples were positive by PCR. Leptospires could not be isolated from any of the semen samples examined. Conclusion: Polymerase chain reaction can be a method of great potential for the detection of leptospires at artificial insemination centres.
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Cattle, Leptospirosis, PCR, Semen, bacterium antibody, animal, animal disease, artificial insemination, blood, Brazil, cattle, cattle disease, disease transmission, female, isolation and purification, Leptospira, leptospirosis, methodology, microbiology, polymerase chain reaction, species difference, sperm, Animals, Antibodies, Bacterial, Cattle Diseases, Female, Insemination, Artificial, Polymerase Chain Reaction, Species Specificity
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Inglês
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Australian Veterinary Journal, v. 77, n. 1, p. 32-34, 1999.
