title: Fly control and chronic toxicity from feeding Dursban (O,O-diethyl O-3,5,6-trichloro-2-pyridyl phosphorothioate) to laying hens.
mesh_terms: D000284:Administration, Oral; D000821:Animal Feed; D000818:Animals; D001835:Body Weight; D002645:Chickens; D004390:Chlorpyrifos / Q000008:administration & dosage / Q000633:toxicity; D002802:Cholinesterases / Q000097:blood; D004175:Diptera; D004531:Eggs; D005260:Female; D007300:Insect Control; D007306:Insecticides / Q000633:toxicity*; D007814:Larva; D011201:Poultry Diseases / Q000139:chemically induced* / Q000201:enzymology / Q000401:mortality
chemical_list: D007306:Insecticides; D002802:Cholinesterases; D004390:Chlorpyrifos