RNA interference (RNAi) is a powerful molecular tool for gene discovery and functional validation for candidate vaccine antigens from the vast amount of information available within EST datasets. In this paper we report the knock down in the phenotypic expression of Hemonchus contortus astacin-like MTP gene associated with reproduction and bloodfeeding of this parasite which is predominantly expressed in late larval and adult stages by RNAi interference. The RNAi experiments were conducted utilizing the soaking protocol. | RNA interference of the Hemonchus contortus Astacin-like MTP Gene by the soaking method