Fasciola hepatica infections in livestock flock, guanacos and coypus in two wildlife reserves in Argentina

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...

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Autores principales:	Pietrokovsky, Silvia Monica, Wisnivesky Colli, María Cristina
Publicado:	2009
Materias:	Fascioliasis Lama guanicoe Myocastor coypus South America Wildlife reserves Argentina article controlled study fascioliasis feces analysis freshwater environment goat infection rate livestock Lymnaea lymnaea truncatula myocastor coypus nonhuman normal distribution parasite transmission sheep wild animal Animals Animals, Wild Camelids, New World Feces Goat Diseases Goats Helminthiasis, Animal Parasite Egg Count Prevalence Rodent Diseases Rodentia Sheep Sheep Diseases Animalia Capra hircus Fasciola hepatica Fossaria truncatula Gastropoda Lymnaeidae Ovis aries
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03044017_v165_n3-4_p341_Issia http://hdl.handle.net/20.500.12110/paper_03044017_v165_n3-4_p341_Issia
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_03044017_v165_n3-4_p341_Issia
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spelling	paper:paper_03044017_v165_n3-4_p341_Issia2023-06-08T15:29:43Z Fasciola hepatica infections in livestock flock, guanacos and coypus in two wildlife reserves in Argentina Pietrokovsky, Silvia Monica Wisnivesky Colli, María Cristina 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 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. Fil:Pietrokovsky, S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Wisnivesky-Colli, C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2009 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03044017_v165_n3-4_p341_Issia http://hdl.handle.net/20.500.12110/paper_03044017_v165_n3-4_p341_Issia
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	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
spellingShingle	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 Pietrokovsky, Silvia Monica Wisnivesky Colli, María Cristina Fasciola hepatica infections in livestock flock, guanacos and coypus in two wildlife reserves in Argentina
topic_facet	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
description	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.
author	Pietrokovsky, Silvia Monica Wisnivesky Colli, María Cristina
author_facet	Pietrokovsky, Silvia Monica Wisnivesky Colli, María Cristina
author_sort	Pietrokovsky, Silvia Monica
title	Fasciola hepatica infections in livestock flock, guanacos and coypus in two wildlife reserves in Argentina
title_short	Fasciola hepatica infections in livestock flock, guanacos and coypus in two wildlife reserves in Argentina
title_full	Fasciola hepatica infections in livestock flock, guanacos and coypus in two wildlife reserves in Argentina
title_fullStr	Fasciola hepatica infections in livestock flock, guanacos and coypus in two wildlife reserves in Argentina
title_full_unstemmed	Fasciola hepatica infections in livestock flock, guanacos and coypus in two wildlife reserves in Argentina
title_sort	fasciola hepatica infections in livestock flock, guanacos and coypus in two wildlife reserves in argentina
publishDate	2009
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03044017_v165_n3-4_p341_Issia http://hdl.handle.net/20.500.12110/paper_03044017_v165_n3-4_p341_Issia
work_keys_str_mv	AT pietrokovskysilviamonica fasciolahepaticainfectionsinlivestockflockguanacosandcoypusintwowildlifereservesinargentina AT wisniveskycollimariacristina fasciolahepaticainfectionsinlivestockflockguanacosandcoypusintwowildlifereservesinargentina
_version_	1768542363641184256

Fasciola hepatica infections in livestock flock, guanacos and coypus in two wildlife reserves in Argentina

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