Biological control of Haemonchus contortus infective larvae in ovine faeces by administering an oral suspension of Duddingtonia flagrans chlamydospores to sheep.
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.
Mendoza de Gives
P
P
Proyecto Control Biologico, Centro Nacional de Investigaciones Disciplinarias en Parasitologia Veterinaria, Instituto Nacional de Investigaciones Forestales y Agropecuarias, Municipio de Jiutepec, Estado de Morelos, México. pedro.mendoza@bbsrc.ac.uk
Flores Crespo
J
J
Herrera Rodriguez
D
D
Vazquez Prats
V
V
Liebano Hernandez
E
E
Ontiveros Fernandez
G E
GE
D000284:Administration, Oral; D000818:Animals; D005243:Feces / Q000469:parasitology; D005260:Female; D005658:Fungi; D006188:Haemonchiasis / Q000628:therapy* / Q000662:veterinary*; D006189:Haemonchus / Q000302:isolation & purification; D008297:Male; D010572:Pest Control, Biological / Q000379:methods*; D012756:Sheep; D012757:Sheep Diseases / Q000469:parasitology* / Q000628:therapy