Abstract
Toxocara canis is an ascarid parasite of the small intestine of dogs that causes visceral larva migrans in humans. With the aim of demonstrating the effectiveness of the fungus Pochonia chlamydosporia on Toxocara canis eggs under laboratory conditions, a trial was set up in Petri dishes with 2% agar-water. There was ovicidal activity of 43.8% (p < 0.01) in the treated group in relation to the control group over the periods studied. The results from the present study suggest that Pochonia chlamydosporia can potentially be used as an alternative biological control for embryonated Toxocara canis eggs.
Highlights
Toxocara canis is an ascarid parasite of the small intestine of dogs that causes visceral larva migrans in humans
Braga e cols[6] demonstraram a eficácia dos isolados VC1 e VC4 do fungo Pochonia chlamydosporia sobre ovos de Ascaris lumbricoides, nematóide gastrintestinal comum de seres humanos, nos intervalos de sete, 10 e 14 dias, e ao final do experimento estes autores registraram percentuais para a ação ovicida acima de 26% para ambos os isolados testados
Dessa forma, por meio dos resultados percentuais demonstrados no presente trabalho, sugere-se a empregabilidade de Pochonia chlamydosporia como uma alternativa de controle biológico dos ovos embrionados de Toxocara canis eliminados nas fezes, e com isso interferindo diretamente no ciclo biológico deste parasito
Summary
Toxocara canis is an ascarid parasite of the small intestine of dogs that causes visceral larva migrans in humans. O presente estudo objetivou avaliar in vitro a ação ovicida do fungo nematófago Pochonia chlamydosporia (isolados VC1, VC4, VC5, VC12 e VC31) sobre ovos de Toxocara canis em diferentes intervalos de tempo.
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