Abstract

MINOTT PICADO, Priscila  and  CABALLERO CASTILLO, Magali. Determination of species of salmonella and endoparasites in grackles (quiscalus mexicanus) in the park of Cañas, Guanacaste, Costa Rica. Rev. costarric. salud pública [online]. 2007, vol.16, n.31, pp.27-35. ISSN 1409-1429.

Prevalence of Salmonella spp. was determined in 60 fecal samples obtained from great tailed grackles (Quiscalus mexicanus) from Cañas, Guanacaste, since their presence has been observed in sites which produce animal protein (poultry, pork, etc.) Serovars Montevideo, Saint Paul and Carrau were isolated from 3 samples (5%). Effectiveness of commercially available Rappaport-Vasiliadis Soy peptone was compared with that of Rappaport-Vasiliadis broth prepared from the ingredients. A significant difference was obtained (p=0.04) between both enrichment broths. 28 grackles were captured for the first part and for the second part of this study, 32 great tailed grackles were captured and examined for endoparasites. Cestodes and acanthocephalan parasites were found during post mortem examination of the large intestine. Microscopic examination of intestinal samples revealed the presence of coccidian parasites of the genera Isospora, and two types of nematode eggs. Blood samples showed the presence of filarial infections.

Keywords : Quiscalus mexicanus; Salmonella species; Rappaport-Vasiliadis; bird endoparasites.

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