COMMUNICATIONS
Feeding TH 6040 to Cattle: Residues in Tissues and Milk and Breakdown in Manure Three dairy cows were fed Thompson-Hayward T H 6040 [N-(4-chlorophenyl)-N'-(2,6-difluorobenzoyl)urea] at rates ranging between 0.25 and 16 mg/kg body wt per day for 4-5 months. No (