However, when the metabolite ethylene thiourea was administered at 215 mg/kg body-weight per day from day 7 of birth until ... In particular, the content of ethylene thiourea in the residues was similar. A considerable amount of work on a number of ... level of ethylene thiourea. (Note: Some of these data are known to be available but were not submitted in time for detailed ... ethylene thiourea (ETU) method and calculated as ETU (sensitivity, 0.05 ppm). Most of the same samples were analyzed for ...