Anthelmintic activity of Croton zehntneri and Lippia sidoides essential oils.
|
Anthelmintic activity of Croton zehntneri and Lippia sidoides essential oils.
|
Search TravelDoctorOnline |
Authors: Camurça-Vasconcelos AL,Bevilaqua CM,Morais SM,Maciel MV,Costa CT,Macedo IT,Oliveira LM,Braga RR,Silva RA,Vieira LS,
Address: Programa de Pós-graduação em Ciências Veterinárias, Universidade Estadual do Ceará, Brazil. anacamurca@bol.com.br
Journal: Vet Parasitol.
Publication: 2007 Sep 30;148(3-4):288-94. Epub 2007 Jul 16.
Because of the development of Anthelmintic resistant populations, the search for new drugs is essential to maintain the productivity of small ruminants. The aim of this study was to evaluate the anthelmintic activity of Croton zehntneri and Lippia sidoides essential oils and their major constituents, anethole and thymol. The effects of these oils and their constituents were determined by in vitro assays with the eggs and larvae of the sheep gastrointestinal nematode Haemonchus contortus. The two essential oils were evaluated on intestinal nematodes of mice at 800 mg kg(-1) dose. In the last experiment, the mice were treated with larger doses of L. sidoides, 1200 and 1600 mg kg(-1). The essential oils and their constituents prevented more than 98% of the H. contortus eggs from hatching at a concentration of 1.25 mg ml(-1) and inhibited more than 90% of H. contortus larval development at a concentration of 10 mg ml(-1). At a concentration of 800 mg kg(-1), the two essential oils were 46.3% and 11.64% effective against Syphacia obvelata and Aspiculuris tetraptera. At 1200 and 1600 mg kg(-1), L. sidoides essential oil's efficacy on the mouse worm burden was 57.6% and 68.9%, respectively. The fact that L. sidoides essential oil was almost 70% effective against mouse intestinal nematodes indicates it should be evaluated against gastrointestinal nematodes of sheep and goats.
TraveldoctorOnline 2001 • Disclaimer • webmaster
The contents within traveldoctoronline are presented only for informational purposes and cannot substitute for professional health care or any other medical treatment.All users of this website with health problems should be oblige always to consult their medical doctor before starting any treatment.
