A suitable model for the utilization of Duddingtonia flagrans fungus in small-flock-size sheep farms.
Exp Parasitol
; 127(4): 727-31, 2011 Apr.
Article
en En
| MEDLINE
| ID: mdl-21272579
ABSTRACT
Effective alternatives to anthelmintic treatment of nematode parasite infections of sheep are required because of the high prevalence of drug resistance. Within this context, the nematode-trapping fungus Duddingtonia flagrans has become a valuable component of various integrated control strategies. Toward this objective, a small quantity of lyophilized D. flagrans chlamydospores (10(6) spores per animal) was administered to sheep in a one-year plot study. Animals grazing on native pasture were divided into two homogeneous groups and were kept in 1-ha paddocks in the southern region of Brazil. The oral administration of chlamydospores led to a significant reduction (p<0.05) in the number of nematode eggs per gram of feces and in the larval availability on herbage (difference of 37.6%) in comparison to the control group. Control animals needed to be dewormed three times during the experiment, whereas the fungus-treated animals maintained a low parasite load, independent of seasonal variation. Although D. flagrans cannot serve as a panacea for nematode parasite control of livestock, it represents a significant advance toward rationalizing the use of endoparasitic drugs in small animals.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Ascomicetos
/
Enfermedades de las Ovejas
/
Control Biológico de Vectores
/
Infecciones por Nematodos
Tipo de estudio:
Risk_factors_studies
Límite:
Animals
País/Región como asunto:
America do sul
/
Brasil
Idioma:
En
Revista:
Exp Parasitol
Año:
2011
Tipo del documento:
Article
País de afiliación:
Brasil