Fish breeders in Cuu Long (Mekong) Delta provinces, especially in Dong Thap, were concerned about rumours about illegal antibiotic usage, said the director of the Dong Thap Department of Fisheries, Le Hoang Vu.
Provincial agencies had closely monitored fish-breeding households for proper feed, medicine and environmental treatment systems and had not found any banned substances, Vu said.
VNS