Atividade predatória sobre larvas de trichostrongilídeos de isolados fúngicos do gênero Monacrosporium após a passagem pelo trato gastrintestinal de bovinos

• Ano de defesa: 2003
• Autor(a) principal: Ribeiro, Raul Rio
• Orientador(a): Araújo, Jackson Victor de
• Banca de defesa: Salcedo, Joaquín Hernán Patarroyo , Guimarães, Marcos Pezzi , Barreto, Robert Weingart , Lima, Walter dos Santos
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Viçosa
• Programa de Pós-Graduação: Mestrado em Medicina Veterinária
• Departamento: Biotecnologia, diagnóstico e controle de doenças; Epidemiologia e controle de qualidade de prod. de
• País: BR
• Palavras-chave em Português: Fungos predadores; Monacrosporium; Controle biológico
• Palavras-chave em Inglês: Predators fungi; Monacrosporium; Biological control
• Área do conhecimento CNPq: CNPQ::CIENCIAS BIOLOGICAS::PARASITOLOGIA
• Link de acesso: http://locus.ufv.br/handle/123456789/5176

Three isolates of predators fungi of the genus Monacrosporium (M. sinense SF-53, M. appendiculatum CGI and M. sinense SF-139) were evaluated in vivo regarding the capacity of supporting passage through the gastrointestinal tract of calves without losing the ability to entrap infective Cooperia sp. and Haemonchus sp. larvae. The isolates SF-53 and CGI were managed orally, separately to the calves, fresh mycelium form at dose only of 100 g. Collected fecal Samples 12, 18, 24, 48, 72 and 96 hours after the treatments were allocated in Petri dishes with 5-cm diameter, added of 750 infective Cooperia sp. and Haemonchus sp. larvae. At the end of the experiment, reproductive structures (conidia) from both isolates were visualized in every the studied times. There was significant reduction of the average number of nematodes larvae recovered of the Petri dishes when compared with the control group. Such evidences confirm the transit of these fungi by the digestive tract of the calves without loss of the predatory viability. There are no evidences that the isolated SF-139 has passed by the gastrointestinal tract of calf after oral administration, fresh mycelium form at dose only of 87 g.