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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 103, No. 3, 2008, pp. 221-235
Bioline Code: oc08050
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 103, No. 3, 2008, pp. 221-235

 en Capillariid nematodes in Brazilian turkeys, Meleagris gallopavo check for this species in other resources (Galliformes, Phasianidae): pathology induced by Baruscapillaria obsignata check for this species in other resources and Eucoleus annulatus check for this species in other resources (Trichinelloidea, Capillariidae)
Pinto, Roberto Magalhães; Brener, Beatriz; Tortelly, Rogério; Menezes, Rodrigo Caldas & Muniz-Pereira, Luís Cláudio

Abstract

The pathology induced in turkeys ( Meleagris gallopavo check for this species in other resources ) by two capillariid nematodes, Baruscapillaria obsignata check for this species in other resources and Eucoleus annulatus check for this species in other resources is described together with data on prevalences, mean infection and range of worm burdens. B. obsignata occurred with a prevalence of 72.5% in the 40 examined hosts in a range of 2-461 nematodes and a mean intensity of 68.6, whereas E. annulatus was present in 2.5% of the animals, with a total amount of five recovered parasites. Gross lesions were not observed in the parasitized birds. Lesions due to B. obsignata mainly consisted of the thickening of intestinal villi with a mild mixed inflammatory infiltrate with the presence of mononuclear cells and heterophils. The lesions induced by E. annulatus were represented by foci of inflammatory infiltrate with heterophils in the crop epithelium and esophagus of a single infected female. These are the first pathological findings related to the presence of capillariid worms in turkeys to be reported in Brazil so far. Capillaria anatis check for this species in other resources , although present, was not pathogenic to the investigated turkeys.

Keywords
Baruscapillaria obsignata - Capillaria anatis - Eucoleus annulatus - Meleagris gallopavo - turkeys - pathology

 
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