Abstract
The aim of this study was to evaluate the efficacy of Famacha method in individual clinical diagnosis of haemonchosis in sheep from the south-west of Minas Gerais. Fifty crossbred Santa Inês ewes were evaluated during 5 months as for conjunctival mucous colour (Famacha method), Packed Cell Volume (PCV), Faecal Egg Counts (FEC), body score and clinic alterations. The score Famacha observed was from 1 to 3, the body score from 2 to 5, the PCV from 20 to 47%, and FEC from 0 to 7,750. The correlations between the parameters evaluated, except Famacha with body score, were highly significant (P < 0.0001). The main genus identified in the coprocultures was Haemonchus (87-100% of total larvae, +/- 93.5%). We observed reduction of 87.33% in the use of anthelmintics on the property. It was concluded that the Famacha method, associated with other diagnostic methods, is a useful tool to detect hemonchosis in sheep.
Highlights
O parasitismo por helmintos gastrintestinais em ovinos é uma das principais causas de perdas na produção
We observed reduction of 87.33% in the use of anthelmintics on the property
Perde-se na qualidade tanto da carne, quanto da lã
Summary
O parasitismo por helmintos gastrintestinais em ovinos é uma das principais causas de perdas na produção. Em 1992, foi criada uma tabela que representa as diferentes colorações da conjuntiva ocular de ovinos, correlacionando-as com valores de hematócrito e o grau de infecção por Haemonchus contortus, denominado de método Famacha. Utilização do método Famacha no diagnóstico clínico individual de haemoncose em ovinos naturalmente infectadas, foram avaliadas quanto ao escore de coloração da mucosa (método Famacha), volume globular (VG), ovos por grama de fezes (OPG), escore corporal e alterações clínicas.
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