Abstract
The prevalence of infectious agents associated with reproductive failures in Zebu and crossbred cattle (n=268), older than six months of age, from the IVITA Research Center herd in Pucallpa, Peru, was determined. Serum samples were collected for the detection of antibodies against Brucella sp., Leptospira serovares: canicola, icterohemorrhagiae, pomona and hardjo, Bovine Viral Diarrhea Virus (BVDV), Bovine Herpes Virus Type 1 (BHV-1) and Neospora caninum by a commercial indirect ELISA, microglutination, viral neutralization and indirect immunofluorescence tests, respectively. No antibodies were detected againstBrucella sp., L. pomona and BVDV. The 46.3 ± 6.0% of the animals had antibodies against BHV-1. The highest seroprevalence of BHV-1 (63.2%) was found in cows older than 18 months. Antibody titres against BHV-1 varied from 2 till >256. The 52.2% of the animals had antibodies against Leptospira. The higher prevalence (35%) corresponded to L. hardjo followed by L. canicola and L. icterohemorrhagiae (14.9%). The titers of antibodies ranged from 1:100 to 1:400. Antibodies against N. caninumwas found in 1.5% of the samples. These results indicate that Brucella sp. and BVDV are not prevalent in the herd. The eradication of N. caninum is feasible due to its low prevalence, but BHV-1 and Leptospira could be considered of sanitary risk for this herd.
| Original language | English |
|---|---|
| Pages (from-to) | 120-126 |
| Number of pages | 7 |
| Journal | Revista de Investigaciones Veterinarias del Peru |
| Volume | 15 |
| Issue number | 2 |
| State | Published - 2004 |
Bibliographical note
Funding Information:1Trabajo financiado por el Consejo Superior de Investigaciones de la UNMSM 2Laboratorio de Microbiología y Parasitología Veterinaria, FMV-UNMSM 3E-mail: hriverag@vet.unmsm.edu.pe 4Estación Experimental del Centro de Investigaciones IVITA-Pucallpa, FMV-UNMSM
Funding Information:
Actualmente, la ganadería lechera se viene desarrollando en algunas zonas de la Amazonía peruana, como el Alto Mayo en San Martín y Pucallpa en Ucayali; sin embargo, existe escasa información sobre la pre-valencia de las enfermedades antes mencio-nadas que afectan la vida reproductiva del animal. La Estación Experimental (EE) del Centro de Investigación IVITA de la Facul-tad de Medicina Veterinaria (FMV), Univer-sidad Nacional Mayor de San Marcos (UNMSM), ubicado en Pucallpa, Amazonía Baja, posee un hato cerrado con aproxima-damente 500 bovinos cebú y cruzados cebú x europeo, criados en forma extensiva, con un gran potencial como centro de recría; por lo que el objetivo del presente estudio fue determinar la seroprevalencia de las enfer-medades de impacto reproductivo en ese centro pecuario, con el propósito de que los datos puedan ser utilizados para el mejoramien-to de su estado sanitario.
Publisher Copyright:
© 2004 Sociedad de Obstetricia y Ginecologia de Venezuela. All rights reserved.
Keywords
- Abortogenic microorganisms
- Antibodies
- Bovine
- Prevalence
- Tropics