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Abstract:

Between autumn and spring 2006, a coprological survey was performed in two wildlife reserves located in the north of Argentine Patagonia to determine the prevalence of Fasciola hepatica and the number of parasite eggs per gram (epg) of feces in wild guanacos (Lama guanicoe), coypus (Myocastor coypus), and locally born and raised goats and sheep. Snails of the Family Lymnaeidae were collected in freshwater habitats, identified taxonomically and analyzed parasitologically. Prevalence of patent infection was 100% in sheep (n = 69) and coypus (n = 9), 84% in goats (n = 20) and 0.5% in guanacos (n = 224). No significant differences in epg were found among animals, but the median epg of coypus (160) and sheep (160) was higher than that of goats (80). For guanacos and goats, a negative binomial model estimating the population egg-count frequency could be fitted, while for coypus and sheep parasite egg-count frequencies trended toward a normal distribution, indicative of a more even, and much less aggregated distribution across sampled hosts. All snails (n = 175) were Lymnaea truncatula and none of them was found infected. This is the first report of fascioliasis in free-ranging guanacos in Argentina. Coypu appears to be a major wildlife reservoir of F. hepatica, which was presumably introduced locally by livestock. © 2009 Elsevier B.V. All rights reserved.

Registro:

Documento: Artículo
Título:Fasciola hepatica infections in livestock flock, guanacos and coypus in two wildlife reserves in Argentina
Autor:Issia, L.; Pietrokovsky, S.; Sousa-Figueiredo, J.; Stothard, J.R.; Wisnivesky-Colli, C.
Filiación:Unidad de Ecología de Reservorios y Vectores de Parásitos, Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Ciudad Universitaria, Pab. II, C1428EHA Buenos Aires, Argentina
Wolfson Wellcome Biomedical Laboratories, Department of Zoology, Natural History Museum, Cromwell Road, London, SW7 5BD, United Kingdom
Palabras clave:Fascioliasis; Lama guanicoe; Myocastor coypus; South America; Wildlife reserves; Argentina; article; controlled study; fascioliasis; feces analysis; freshwater environment; goat; infection rate; Lama guanicoe; livestock; Lymnaea; lymnaea truncatula; myocastor coypus; nonhuman; normal distribution; parasite transmission; sheep; wild animal; Animals; Animals, Wild; Argentina; Camelids, New World; Fascioliasis; Feces; Goat Diseases; Goats; Helminthiasis, Animal; Parasite Egg Count; Prevalence; Rodent Diseases; Rodentia; Sheep; Sheep Diseases; Animalia; Capra hircus; Fasciola hepatica; Fossaria truncatula; Gastropoda; Lama guanicoe; Lymnaeidae; Myocastor coypus; Ovis aries
Año:2009
Volumen:165
Número:3-4
Página de inicio:341
Página de fin:344
DOI: http://dx.doi.org/10.1016/j.vetpar.2009.07.011
Título revista:Veterinary Parasitology
Título revista abreviado:Vet. Parasitol.
ISSN:03044017
CODEN:VPARD
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03044017_v165_n3-4_p341_Issia

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Citas:

---------- APA ----------
Issia, L., Pietrokovsky, S., Sousa-Figueiredo, J., Stothard, J.R. & Wisnivesky-Colli, C. (2009) . Fasciola hepatica infections in livestock flock, guanacos and coypus in two wildlife reserves in Argentina. Veterinary Parasitology, 165(3-4), 341-344.
http://dx.doi.org/10.1016/j.vetpar.2009.07.011
---------- CHICAGO ----------
Issia, L., Pietrokovsky, S., Sousa-Figueiredo, J., Stothard, J.R., Wisnivesky-Colli, C. "Fasciola hepatica infections in livestock flock, guanacos and coypus in two wildlife reserves in Argentina" . Veterinary Parasitology 165, no. 3-4 (2009) : 341-344.
http://dx.doi.org/10.1016/j.vetpar.2009.07.011
---------- MLA ----------
Issia, L., Pietrokovsky, S., Sousa-Figueiredo, J., Stothard, J.R., Wisnivesky-Colli, C. "Fasciola hepatica infections in livestock flock, guanacos and coypus in two wildlife reserves in Argentina" . Veterinary Parasitology, vol. 165, no. 3-4, 2009, pp. 341-344.
http://dx.doi.org/10.1016/j.vetpar.2009.07.011
---------- VANCOUVER ----------
Issia, L., Pietrokovsky, S., Sousa-Figueiredo, J., Stothard, J.R., Wisnivesky-Colli, C. Fasciola hepatica infections in livestock flock, guanacos and coypus in two wildlife reserves in Argentina. Vet. Parasitol. 2009;165(3-4):341-344.
http://dx.doi.org/10.1016/j.vetpar.2009.07.011