AGE-Dependent toxicity of diazinon and terbufos in European Starlings (sturnus vulgaris) and red-winged blackbirds (agelaius phoeniceus)

摘要

Adult European starlings (Sutrnus vulgaris) are more resistant to poisoning by organophosphorous (OP pesticides than are other passerine birds. Nestling starlings, however, are sensitive to OP intoxication. Both adult and nestling red-winged blackbirds (Agelaius phoeniceus) are sensitive to OP toxicity and therefore may be a more representative model of the toxic response of passerine birds. The purpose of this study was to compare the toxicity ratio, as indicated by median lethal dose (LD50), of terbufos and diazinon in adult and nestling starlings and red-winged blackbirds, and to compare cholinesterase (ChE) inhibition between species and among age groups.