IN VITRO EVALUATION OF THE NEMATICIDAL EFFECT OF SOME MEDICINAL PLANTS ON HAEMONCHUS CONTORTUS (NEMATODA)

Abstract

The aim of present study is to investigate the nematicidal efficacies of five medicinal plants, Acacia nilotica, Azadirachta indica, Dalbergia sissoo, Ocimum sanctum and Ficus religiosa. Aqueous extracts of these plants were investigated in vitro conditions for their anthelmintic activity against adults of Haemonchus contotus. Aqueous extract of each plant was used at five concentrations (10, 20, 30, 40 and 50 %). The results showed that all the extracts has a dose related effect on the motility of worms and the mortality of the worms increases as the concentration of the extract increases. The overall findings of the study revealed that aqueous extracts prepared from the medicinal plants studied have potential nematicidal properties and in vivo studies are suggested to make use of these plants as effective drugs against Haemonchosis in small ruminants as an alternative to chemotherapy.