"Assessment of predatory capacity of Duddingtonia flagrans in faeces exposes to sun and shade."

SAGÜÉS MARÍA F.; SAUMELL CARLOS A.; FUSE LUIS.; IGLESIAS LUCÍA E.; FIEL C.

Tandil

Congreso; XL Reunión Anual de la Sociedad Argentina de Farmacología Experimental; 2008

Sociedad Argentina de Farmacología Experimental

The potential use of Duddingtonia flagrans as a possible biological agent for controlling nematode parasites in livestock production is widely accepted. Sun radiation could inhibit the predation action against infective larvae (L3) in faeces. The purpose of this study was to test predatory activity of D. flagrans on fecal matter exposed to sun radiation and shade in naturally infected horses. During 2 weeks inside temperature of faeces was registered twice a day (8:30 and 13:30 hs). The efficacy percentage with D. flagrans chlamydospores on fecal matter larvae reduction was lower (77%) in faeces exposed to sun 30.5 ºC ( 15-51ºC ) than faeces exposed to shade  21 ºC( 9-27ºC)(100%). Therefore, D. flagrans showed efficient predatory activity at extreme temperature.