4. Discussion
For parasitological assays, were used feces containing
predominantly eggs of Haemonchus spp. The genera
Haemonchus spp., Trichostrongylus spp. and Oesophagostomum
are the most prevalent nematodes found in goats in
Bahia state, Brazil (Domingues et al., 2010; Cavele et al.,
2011). The use of animals with natural infections allows the
simultaneous evaluation of a variety of helmints presents
in region studied.
The greatest ovicidal activity was observed for the FF,
which was followed by those of the EE and EA, while the
FS had no effect on the eggs. Silveira (2009) demonstrated
ovicidal action for sisal liquid waste on the nematodes of
sheep, and the EC50 value (6.8 mg/mL) was 1.5 times greater
than that observed in this study for the aqueous extract.