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Revista Brasileira de Parasitologia Veterinária
On-line version ISSN 1984-2961
ARAUJO, Juliana Milani et al. Control of Strongyloides westeri by nematophagous fungi after passage through the gastrointestinal tract of donkeys. Rev. Bras. Parasitol. Vet. [online]. 2012, vol.21, n.2, pp. 157-160. ISSN 1984-2961. http://dx.doi.org/10.1590/S1984-29612012000200016.
Strongyloides westeri is the most prevalent nematode among equines aged up to four months and causes gastrointestinal disorders. The objective of this study was to observe the control of infective S. westeri larvae (L3) by the nematophagous fungi Duddingtonia flagrans (AC001) and Monacrosporium thaumasium (NF34) after passage through the gastrointestinal tract of female donkeys. Twelve dewormed female donkeys that were kept in stables were used. Two treatment groups each comprising four animals received orally 100 g of pellets made of sodium alginate matrix containing a mycelial mass of either D. flagrans (AC001) or M. thaumasium (NF34). The control group consisted of four animals that received pellets without fungus. Feces samples were then collected from the animal groups at different times (after 12, 24, 48 and 72 hours). These feces were placed in Petri dishes containing 2% water-agar medium and 1000 L3 of S. westeri. AC001 and NF34 isolates showed the ability to destroy the L3, after gastrointestinal transit, thus demonstrating their viability and predatory activity.
Keywords : Nematophagous fungi; Duddingtonia flagrans; Monacrosporium thaumasium; Strongyloides westeri; female donkeys.