[Larvae culture of ovine gastrintestinal nematodes in sawdust substrates of Pinus taeda, P. elliottii and Araucaria angustifolia].

The aim of this study was to verify the influence of sawdust substrates obtained from wood treated with sodium tribromophenate and not treated of Pinus elliotti, P. taeda, and Araucaria angustifolia in larval cultures of ovine gastrintestinal helminths. Feces samples were collected between 8 to 12am, from a lamb naturally infected with gastrintestinal nematodes and analysed by the modified Mc Master technique for worm egg counting (epg).