Falibilidad de la coprología para diferenciar huevos de fasciola hepatica y taxorchis schistocotyle en carpinchos (hydrochaeris hydrochaeris)
; Racioppi, O. ; Álvarez, J. D. Otros responsables
Fecha
12/2012
Editorial
Universidad Nacional del Nordeste. Facultad de Ciencias Veterinarias
Revista
Veterinaria
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1668-4834
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Español
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Resumen
El propósito del trabajo fue poner en discusión el método coprológico tradicional para determinar la presencia del trematodo Fasciola hepatica en carpinchos (Hydrochaeris hydrochaeris). Para tal fin se analizaron por coprología 164 muestras de materia fecal hallándose 21 casos (12,8%) positivos (presencia de huevos compatibles con F. hepatica). Sin embargo, huevos obtenidos directamente del útero por disección de los parásitos del carpincho F. hepatica y Taxorchis schistocotyle (de localización hepática e intestinal respectivamente), fueron indistinguibles entre sí por su similitud morfológica y dimensiones. Por tal motivo se considera que las tasas de prevalencia de fasciolosis obtenidas en carpinchos por coprología son dudosas por no discriminar el tipo de huevo.
The purpose of this study is to present the fallibility of the coprologic standard method to determine the presence of the trematode Fasciola hepatica in capybara (Hydrochaeris hydrochaeris). For this purpose, 164 samples were analyzed by coprology and a total of 21 cases (12.8%) were positives, but the eggs found were consistent with the morphology and size of both F. hepatica and Taxorchis schistocotyle, fluke parasites of this rodent, with localization in liver and intestine, respectively. For both types of eggs it was no possible to make morphological differentiation when considering size and shape. As a conclusion, fasciolosis prevalence rates obtained from results using the coprology standard method in capybaras may be considered as doubtful, as the technique does not allow differentiating between F. hepatica and T. schistocotyle eggs.
The purpose of this study is to present the fallibility of the coprologic standard method to determine the presence of the trematode Fasciola hepatica in capybara (Hydrochaeris hydrochaeris). For this purpose, 164 samples were analyzed by coprology and a total of 21 cases (12.8%) were positives, but the eggs found were consistent with the morphology and size of both F. hepatica and Taxorchis schistocotyle, fluke parasites of this rodent, with localization in liver and intestine, respectively. For both types of eggs it was no possible to make morphological differentiation when considering size and shape. As a conclusion, fasciolosis prevalence rates obtained from results using the coprology standard method in capybaras may be considered as doubtful, as the technique does not allow differentiating between F. hepatica and T. schistocotyle eggs.
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