Abstract

GUTIERREZ-HERNANDEZ, José et al. Frequency of reproductive impact diseases in dual-purpose cattle located in Oaxaca, Mexico. Abanico vet [online]. 2020, vol.10, e114.  Epub May 07, 2021. ISSN 2448-6132.  https://doi.org/10.21929/abavet2020.22.

Brucellosis, leptospirosis, bovine viral diarrhea (BVD) and infectious bovine rhinotracheitis (IBR) are abortive diseases that compromise productive efficiency in cattle. In different municipalities of Oaxaca, Mexico, reproductive problems suggestive of these diseases have been observed. This study determined the frequency of BVD, IBR, brucellosis and leptospirosis in dual-purpose cattle herds in different regions of Oaxaca, Mexico. A total of 2,691 blood samples were collected from 127 bovine herds to diagnose brucellosis serologically using the Rose Bengal and Rivanol tests; microscopic agglutination test (MAT) with a battery of six Leptospira serovars; ELISA by blocking and indirect for BVD and IBR respectively. The apparent overall frequency of herd was brucellosis: 2.3%, leptospirosis: 86.6%, IBR: 65.4% and BVD: 56.7%. The real frequency for brucellosis, leptospirosis, IBR and BVD was -9.1% (CI95=-10.1, -7.9%), 64.3% (CI95 = 62.5, 66.1%), 40.1% (CI95 = 38.2, 41.9%) and 33.2 % (CI95 = 31.4, 35.0%) respectively. In Costa region, the highest percentage of animals with antibodies against Leptospira, IBR and BVD was observed. The present study showed serologically the presence of antibodies against brucellosis, IBR, BVD and six serovars of Leptospira in bovine herds’ double purpose of Oaxaca State, Mexico.

Keywords : brucellosis; leptospirosis; BVD; IBR; frequency.

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