Oestrus ovis infection of grazing sheep during summer in southern Chile
Pesqui. vet. bras
;
35(6): 497-500, June 2015. tab
Article
Dans Anglais
| 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.
Texte intégral:
Disponible
Indice:
LILAS (Amériques)
Sujet Principal:
Ovis
/
Hypodermose
/
Myiases
Type d'étude:
Étude de prévalence
/
Facteurs de risque
Limites du sujet:
Animaux
Pays comme sujet:
Amérique du Sud
/
Chili
langue:
Anglais
Texte intégral:
Pesqui. vet. bras
Thème du journal:
Médecine vétérinaire
Année:
2015
Type:
Article
/
descriptif de projet
Pays d'affiliation:
Chili
/
Costa Rica
Institution/Pays d'affiliation:
Universidad Católica de Temuco/CL
/
Universidad Santo Tomás/CL
/
Universidad de La Frontera/CL
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