ASSOCIATION OF LEPTOSPIRA INFECTION AND REPRODUCTIVE PROBLEMS IN A LARGE SHEEP FARM IN THE CENTRAL HIGHLANDS OF PERu

• Autores: Flores M., Andrea, Rivera G., Hermelinda, Gavidia Ch., César
• Formato: artículo
• Fecha de Publicación: 2009
• Institución: Universidad Nacional Mayor de San Marcos
• Repositorio: Revista UNMSM - Revista de Investigaciones Veterinarias del Perú
• Lenguaje: español
• OAI Identifier: oai:ojs.csi.unmsm:article/571
• Enlace del recurso: https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/571
• Nivel de acceso: acceso abierto
• Materia: sheep; ewe; Leptospira sp; abortion; antibodies; microscopic agglutination test; Ovinos; borregas; Leptospira sp.; abortos; anticuerpos; microaglutinación

The association between leptospiral infection and reproductive problems in ewes from a large sheep enterprise in Junin, Peru, was evaluated in a Case-Control study during the breeding season of 2003. Serum samples from 2-10 year-old ewes with abortion or infertility problems (Case group, n = 220) and from ewes without reproductive problems (Control group, n = 220) were collected for the detection of antibodies against Leptospira serovar: pomona, hardjo, canicola, icterohaemorrhagiae, grippotyphosa, wolffi, ballum and bratislava by the microscopic agglutination test. The prevalence of Leptospira sp. was 24.8 ± 4.6%, corresponding 28.6 ± 7.0% to the Case group and 20.9 ± 5.9% to the Control group. No statistic association between leptospiral antibodies and reproductive problems was found by the Chi Square test. The highest serological prevalence (42.2%) was recorded for serovar ballum followed by icterohaemorrhagiae (31.2%). Animals with antibodies to more than one serovar of Leptospira were detected.