Occurrences of Oestrus ovis parasitism in necropsied sheep in the Umuarama microregion, Paraná, Brazil
| Autor: | Marcos Henrique Alcantara Colli, Willian Giquelin Maciel, Weslen Fabricio Pires Teixeira, Barbara Cristina Mazzucatto, Rafael Silveira Carvalho, Maycon Araújo Ruivo, Alvimar José da Costa, Valdomiro Pereira, Welber Daniel Zanetti Lopes, Antonio Campanha Martinez, Breno Cayeiro Cruz, Vando Edésio Soares, Gustavo Felippelli |
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| Jazyk: | angličtina |
| Předmět: |
Veterinary medicine
sheep Farms Microregion Prevalence Parasitism Sheep Diseases Cavitary myiasis Oestrus ovis Myiasis Animal science parasitic diseases medicine Helminths Animals Ovis lcsh:SF1-1100 General Veterinary biology Diptera biology.organism_classification medicine.disease Larva Herd Parasitology Autopsy lcsh:Animal culture Brazil |
| Zdroj: | Revista Brasileira de Parasitologia Veterinária, Vol 24, Iss 3, Pp 370-374 |
| ISSN: | 1984-2961 |
| Popis: | Between January 2007 and September 2013, 71 sheep belonging to 12 farms in the Umuarama microregion, State of Paraná, were evaluated regarding presence of Oestrus ovis larvae, during necropsies. The farms from which these animals originated were visited and the owners and employees were interviewed. Occurrences of O. ovis parasitism in sheep were diagnosed for the first time on this microregion. Of the 71 animals, 12 (16.9%) were parasitized by O. ovis, with mean intensity of 2.25 larvae per infested head (1 to 8 larvae/infested head). There was a high correlation (0.81, p=0.0346) between the number of larvae and the macroscopic lesions observed in these animals’ nasal cavities, such that sheep with more than 3 larvae may contain mucupurulent secretions or epistaxis. From the interviews conducted, it was found that all the farm owners were applying chemical parasite control methods (helminths and/or O. ovis), administered to all animals in the herds every 30 days (91.6% of the producers), using derivatives of macrocyclic lactones and/or benzimidazoles/imidazothiazoles. Further studies need to be conducted in this particular region, in an attempt to elucidate the prevalence of O. ovis parasitism in herds. |
| Databáze: | OpenAIRE |
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