Embryonic toxicity of insecticide Sumithion 50 EC and herbicide Fusilade Sin pheasants after individual or combined administration

The purpose of this work was to determine the individual acid combined effe cts of insecticide Sumithion 50 EC (50% fenitrothion) and herbicide Fusilad e S (12.5% fluazifop-P-butyl) on the development of pheasant embryos. Eggs were treated by injection of various concentrations of pesticides into the air space on day 12 of incubation. Pathological examination of embryos was carried out on day 23 of the hatching period. Mortality rate, body weight d ata and morphological alterations were evaluated after the macroscopic exam ination. The skeletal staining method was used to detect deformities. The t wo pesticides used in combination moderated the toxic/teratogenic effects o f individual treatment.