Study on the inhibition effects of some Vietnamese traditional medicinal plants on egg hatching and larval movement of goat Haemonchus contortus

Nguyen Van Thanh1 , Nguyen Thanh Hai2 , Dam Quang Thai3

Nguyen Van Thanh1 , PhD, DVM, Department of Animal surgery and reproduction, Faculty of Veterinary, Hanoi University of Agriculture, Trau Quy crossing, Gia Lam district, Hanoi, Vietnam. Nguyen Thanh Hai, PhD2 , Department of Plant Bio-technology, Faculty of Biotechnology, Hanoi University of Agriculture, Trau Quy crossing, Gia Lam district, Hanoi, Vietnam. Dam Quang Thai3 , DVM, Department of pharmacology and toxicology, Faculty of Veterinary, Hanoi University of Agriculture, Trau Quy crossing, Gia Lam district, Hanoi, Vietnam.

Correspondence to: Nguyen Van Thanh, PhD, DVM, Department of Animal surgery and reproduction, Faculty of Veterinary, Hanoi University of Agriculture, Trau Quy crossing, Gia Lam district, Hanoi, Vietnam. Tel: (+84) 438760135, Mobile: (+84) 914598399, Email: nvthanhhocviennongnghiephanoi@gmail.com

Abstract :

Six traditional herbs which are well-known in Vietnam for their effect on endoparasite treatment, including: Achyranthes Bidentata Blume, Cassia Alata L, Embelia Ribes Burn, Ipomoea Hederacea Jacq, Leucaena Glauca Benth and Solanumtorvum Swartz were collected to evaluate the inhibitory effect on the egg hatching and larval movement of goat Haemonchus contortus. The aqueous extracts was made and diluted to 5 %, 10 % and 20 % to test. All of the herbs showed inhibitory efficacies at different levels, therefore explains their traditional application as the anti-parasite plants. Cassia Alata L and Embelia Ribes Burn showed the best effect on the egg hatching, while Achyranthes Bidentata Blume showed the best effect on the larval movement. In all of 6 tested herbs and 3 tested concentrations, only Ipomoea Hederacea Jacq and Leucaena Glauca Benth extracts at 20 % had good inhibitory effect (more than 70%) on both of egg laying and larval movement. This result suggests that Ipomoea Hederacea Jacq and Leucaena Glauca Benth extracts at 20% have the most potential to apply in the Haemonchus contortus treatment. Key words: herbs, extracts, antiparasite, Ipomoea Hederacea Jacq, Leucaena Glauca Benth, goat, Haemonchus contortus