Journal of Helminthology
- Journal of Helminthology / Volume 72 / Issue 04 / December 1998, pp 343-347
- Copyright © Cambridge University Press 1998
- DOI: http://dx.doi.org/10.1017/S0022149X00016710 (About DOI), Published online: 05 June 2009
Research Papers
Biological control of Haemonchus contortus infective larvae in ovine faeces by administering an oral suspension of Duddingtonia flagrans chlamydospores to sheep
P. Mendoza de Givesa1 p1, J. Flores Crespoa1, D. Herrera Rodrigueza1, V. Vazquez Pratsa1, E. Liebano Hernandeza1 and G.E. Ontiveros Fernandeza1
a1 Proyecto Control Biologico, Centre Nacional de Investigaciones Disciplinarias en Parasitologia Veterinaria, Instituto Nacional de Investigaciones Forestales y Agropecuarias, SAGAR, Km 11.5 Carr. Fed. Cuernavaca-Cuautla, Col. Progreso, Municipio de Jiutepec, Estado de Morelos, México, Apdo. Postal 206, CIVAC, Morelos, 62500, México
Abstract
A single oral dose of an aqueous suspension containing 11,350,000 chlamydospores of a Mexican isolate of Duddingtonia flagrans (FTHO-8) given to sheep, resulted in a maximum reduction of 88% (range 86.7–90.4%) of the population of Haemonchus contortus infective larvae in the faeces. The effect of this treatment continued for 4–5 days after administration of the suspension. The possible use of this treatment as a method of control of ovine haemonchosis is discussed.
(Accepted May 27 1998)
Correspondence:
p1 Present address: Entomology/Nematology Department, IACR-Rothamsted, Harpenden, Herts, AL5 2JQ, UK. Fax: 01582 760981 E-mail: pedro.mendoza@bbsrc.ac.uk
