Intensive shrimp culture has rapidly expanded in several Asian countries, and following the recent introduction of exotic white-leg shrimp (Litopenaeus vannamei), this is now also a trend in Viet Nam. At the same time the country uniquely retains suchproduction alongside large areas of extensive and semi-intensive production of indigenous tiger shrimp (Penaeus monodori). A range of chemicals and other compounds are used to prevent and control shrimp diseases and improve water quality. Harvested shrimp may contain chemical residues, e.g. antibiotics, if prudent use practices are not followed. However, limited information is available about the different chemical use practices of shrimp farmers. Therefore, this study aimed to evaluate the chemical use practices in Penaeid shrimp hatcheries and grow-out farms in the Mekong River Delta, Viet Nam.
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