LACERDA, M. B.; http://lattes.cnpq.br/0772654290562610; LACERDA, Marcel Bezerra de.
Resumen:
The objective this paper was determinate infections rates to Bluetongue virus (BTV),
Vaccinia virus (VACV), Bovine Leukemia Virus (BLV), Bovine Viral Diarrhea Virus
(BVDV), Leptospira spp. and Brucella abortus in cattle of microregion of Seridó, Rio Grande
do Norte State. A total of 238 serum samples of cattle were collected in thirty-five farm
distributed in five municipalities. The serological tests used were agar gel immunodiffusion
test (AGID) for BTV and BLV, cellular monolayer immunoperoxidase for VACV, virus
neutralization for BVDV, microscopic agglutination test (MAT) for Leptospira spp. and
buffed acidified antigen test (BAAT) and 2-mercaptoethanol test (2-ME) for Brucella
abortus. Seropositivities observed were 3.36% (8/238) to BTV, 78.57% (187/238) to VACV,
7.98% (19/238) to BLV, 78.99% (188/238) to BVDV and 17.64% (42/238) to Leptospira spp.
All farms were positive to VACV and to BVDV and two farms (5,71%) had at least one
positive animal to BTV, VACV, BLV, BVDV and Leptospira spp. These diseases are
endemic in the microregion with similar prevalence in the other States in Brazil. There was no
positive animal to Brucella abortus.