In vitro anthelmintic activity of and essential oils on gastrointestinal nematodes from sheep and cattle.

The aim of the study was to evaluate the in vitro nematicide activity of the allspice () and oregano () essential oils (EOs) on eggs and larvae of gastrointestinal nematodes (GIN) from ruminant. The EOs were obtained by hydro-distillation of previously dehydrated plant material. In the in vitro evaluation, the egg hatching and larval mobility of and spp.