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Syngamiasis in Juvenile American Robins (Turdus migratorius), with a Note on the Prevalence of Other Fecal Parasites

Sallie C. Welte and Carl E. Kirkpatrick
Avian Diseases
Vol. 30, No. 4 (Oct. - Dec., 1986), pp. 736-739
DOI: 10.2307/1590578
Stable URL: http://www.jstor.org/stable/1590578
Page Count: 4
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Syngamiasis in Juvenile American Robins (Turdus migratorius), with a Note on the Prevalence of Other Fecal Parasites
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Abstract

Of 105 juvenile American robins (Turdus migratorius L.) examined for fecal parasites, 77.1% were infected with one or more species of endoparasite. Syngamus sp. was the most commonly encountered parasite, found in 57.1% of the birds. There was a significant association between the presence of Syngamus sp. eggs in feces and signs of respiratory-tract disease. A single oral dose of fenbendazole (100 mg/kg of body weight) eliminated Syngamus sp. infection from all of 18 birds treated, yet 10 of 16 untreated controls apparently were "self-cured" over the 12-day period of observation. /// De un total de 105 mirlas americanas (Turdus migratorius L.) examinadas para la presencia de parásitos fecales, 77.1% estaban infectados con una o más especies de endoparásitos. El parásito más frecuentemente encontrado (57.1% de las aves) fué Syngamus sp. Se encontró una asociación significante entre la presencia de huevos de Syngamus sp. en las heces y signos de enfermedad del tracto respiratorio. Una sóla dosis de fenbendazole (100 mg/kg de peso corporal) eliminó la infección por Syngamus sp. de todas las 18 aves tratadas, sin embargo, 10 de los 16 controles no tratados aparentemente se curaron en forma espontánea durante un período de 12 días de observación.

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