Ovicidal activity of Paecilomyces lilacinus on Moniezia sp. eggs.
The ovicidal activity of Paecilomyces lilacinus was evaluated on Moniezia sp. eggs. Eggs of Moniezia sp. were incubated on plates with 2% agar-water inoculated with grown fungal isolates and a control treatment without fungus. After 5, 10 and 15 days post-inoculation, the eggs were removed and classified according to the following parameters: effect type 1, lytic effect without morphological damage to eggshells; effect type 2, lytic effect with morphological change in embryos and eggshells; and effect type 3, lytic effect with morphological change in embryos and eggshells, with hyphal penetration and internal colonization of eggs. Paecilomyces lilacinus showed percentages for ovicidal activity (P < 0.01), mainly type 3 effect, of 19, 20 and 23% on eggs of Moniezia sp., after 5, 10 and 15 days post-inoculation, respectively. Therefore P. lilacinus can be considered as a potential biological control agent for this cestode.
Braga
F R
FR
Departamento de Veterinária, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil.
Araújo
J V
JV
Araujo
J M
JM
Carvalho
R O
RO
Silva
A R
AR
Campos
A K
AK
Tavela
A O
AO
D000818:Animals; D000829:Animals, Domestic / Q000469:parasitology; D002589:Cestoda / Q000302:isolation & purification / Q000382:microbiology*; D046508:Culture Techniques / Q000379:methods; D005767:Gastrointestinal Diseases / Q000469:parasitology* / Q000517:prevention & control; D008989:Monieziasis / Q000382:microbiology; D009181:Mycoses / Q000382:microbiology*; D010063:Ovum / Q000382:microbiology; D010143:Paecilomyces / Q000302:isolation & purification*; D010572:Pest Control, Biological; D012418:Ruminants / Q000469:parasitology*; D012988:Soil Microbiology