Oestrus ovis infection of grazing sheep during summer in southern Chile
Pesqui. vet. bras
;
35(6): 497-500, June 2015. tab
Artigo
em Inglês
| LILACS
| ID: lil-766183
ABSTRACT
Oestrus ovis is a botfly whose larvae cause nasal myiasis, an environmental-dependent disease in small ruminants, generating acute and chronic injuries in the cranial cavities of sheep. Chile is a country of the southernmost worldwide distribution of this parasite, and there is few information about. Whence, the objective of this study was to approximate the epidemiological situation of O. ovis infection in Chilean sheep. From December 2009 to March 2010, a total of 87 samples were obtained by necropsy for skull inspection. The larvae were collected, and microscopically identified. The prevalence in the sampled sheep was 60.9%. From those that were infected, 85.7% (18/21) of sheep were 1 to 3 years old, constituting the stratum with the highest prevalence. The difference of infection in females and males was not significant. The high risk of infection seems to be dependent upon the environmental conditions of this southern region, especially during summer when the first larval stage (L1) could be found as the evidence. Therefore, the disease should be considered as a significant problem for this kind of livestock production.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Ovinos
/
Hipodermose
/
Miíase
Tipo de estudo:
Estudo de prevalência
/
Fatores de risco
Limite:
Animais
País/Região como assunto:
América do Sul
/
Chile
Idioma:
Inglês
Revista:
Pesqui. vet. bras
Assunto da revista:
Medicina Veterinária
Ano de publicação:
2015
Tipo de documento:
Artigo
/
Documento de projeto
País de afiliação:
Chile
/
Costa Rica
Instituição/País de afiliação:
Universidad Católica de Temuco/CL
/
Universidad Santo Tomás/CL
/
Universidad de La Frontera/CL
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