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Year 2012 - Volume 32, Number 6
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Occurrence and treatment of cutaneous myiasis in sheep reared in semi-arid conditions in northern Minas Gerais, 32(6):490-494
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ABSTRACT.- Duarte E.R., Rocha F.T., Teixeira L.M., Silva R.B., Nogueira F.A., Silva N.O. & Almeida A.C. 2012. [Occurrence and treatment of cutaneous myiasis in sheep reared in semi-arid conditions in northern Minas Gerais.] Ocorrência e tratamento de miíases cutâneas em ovinos criados em condições semiáridas no norte de Minas Gerais. Pesquisa Veterinária Brasileira 32(6):490-494. Instituto de Ciências Agrárias, Universidade Federal de Minas Gerais, Av. Universitária 1000, Bairro Universitário, Montes Claros, MG 39400-006, Brazil. E-mail: duartevet@hotmail.com
Cutaneous myiasis was investigated in 10 sheep herds during one year in northern Minas Gerais, Brazil, and factors related to its occurrence were analyzed. The sheep were predominantly hybrid Saint Inês, bred in semi-extensive systems. A total of 50 cases were registered and the highest incidence occurred during March (22%) and April (18%), months with high temperatures and high relative humidity of the air. There was no influence of sex and age for the occurrence of myiasis. The lesions were mostly found on the legs (34% of the cases). Pododermatitis (38% of the cases), omphalophlebitis (10%), lymphadenitis (6%) and dermatobiosis (6%) were the predisposing factors more frequently associated with myiasis. The myiasis was not correctly treated by the owners, but after implantation of a correct therapy, 92% of the lesions presented cure within 7 to 30 days. The results show the importance of preventive strategies based on the predisposing factors identified in this study. The constant inspection, identifying wounds and precociously treating the lesions, should be routine especially at the end of rainy season and when predisposing factors are present. |
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