Fungos

Código P-056
IN VITRO EVALUATION OF THE EFFECT OF THE NEMATOPHAGOUS FUNGI DUDDINGTONIA
FLAGRANS, MONACROSPORIUM SINENSE AND POCHONIA CHLAMYDOSPORIA ON ASCARIS
SUUM EGGS
JACKSON VICTOR DE ARAÚJO (UNIVERSIDADE FEDERAL DE VIÇOSA); FÁBIO RIBEIRO BRAGA
(UNIVERSIDADE FEDERAL DE VIÇOSA); JULIANA MILANI ARAÚJO (UNIVERSIDADE FEDERAL DE
VIÇOSA); ANDRÉ RICARDO E SILVA (UNIVERSIDADE FEDERAL DE VIÇOSA); ALEXANDRE OLIVEIRA
TAVELA (UNIVERSIDADE FEDERAL DE VIÇOSA); ROGÉRIO
O. CARVALHO (UNIVERSIDADE
FEDERAL DE VIÇOSA)
Swine production is characterized by a great diversity of management, interfering with the verminosis spectrum and infection intensity. Nematode parasitism, however, is still a worldwide problem and in numerous situations the infections are not always detected, persisting at subclinical levels for long periods and frequently causing animal death. Ascaris suum stands out among the swine parasites for causing reduced growth rates and decrease in weight gain because of its nutrient-depleting action, mainly in young animals The in vitro effect of four isolates of the nematophagous fungi Duddingtonia flagrans AC 001,
Monacrosporium sinense SF 53 and Pochonia chlamydosporia VC 1 and VC 4 on eggs of eggs of Ascaris suum were evaluated. One hundred thousand A. suu .eggs were plated on 2% agar-water with the grown isolates and control without fungus. After seven, fourteen and twenty-one days, one hundred eggs were removed and classified according to the following parameters: type 1, lytic effect without morphological damage to eggshell; type 2, lytic effect with morphological alteration of embryo and eggshell; and type 3, lytic effect with morphological alteration of embryo and eggshell, besides hyphal penetration and internal egg colonization. P. chlamydosporia showed ovicidal activity (p 0,05) entre os parasitos. A alta soropositividade detectada em cães da região estudada indica que os mesmos podem estar atuando como transmissores de N. caninum para