Monitoring Antibiotic Use and Residue in Freshwater Aquaculture for Domestic Use in Vietnam

Abstract

Vietnam is an important producer of aquaculture products, and aquatic products are essential to the Vietnamese diet. However, Vietnam also has very little enforced regulation pertaining to antibiotic usage in domestic aquaculture, which raises concerns for antibiotic resistance in pathogenic bacteria. In this study, analysis was conducted on the presence of antibiotic residues in domestically sold fish and shrimp raised in freshwater farms in Vietnam, and an assessment of farmers’ knowledge of proper antibiotics usage was performed. The results indicated that a quarter of tested aquaculture products were antibiotic screening test positive, and there is a general lack of knowledge about the purpose and proper usage of antibiotics by aquaculture producers. Farmers’ decision-making processes about antimicrobial use are influenced by biased sources of information, such as drug manufacturers and sellers, and by financial incentives.Electronic supplementary materialThe online version of this article (doi:10.1007/s10393-014-1006-z) contains supplementary material, which is available to authorized users.

Effect of Oxytetracycline on Thai Silver Barb (Barbonymus gonionotus) and on it’s Culture Environment

“…Scientists have investigated the length of time that certain drug residues (sulphamerazine and tetracycline) remain in fish (Wen et al, 2006;Ansari et al, 2012;Pham et al, 2015). They found sulphamerazine and tetracycline residues could still be detected in fish muscle 3-7 days and 17 days after oral treatment, respectively (Pham et al, 2015). The excretion rate of oxytetracycline in trout and were unable to detect residues present in muscle 10 or 35 days after oral administration dependant on the water temperature (Guardiola et al, 2012).…”

“…Although, it is easily degradable drugs, but can stay in muscle as metabolites forms and in sediment of culture environment for a certain periods (Burridge et al, 2010;Muhammad et al, 2011). Scientists have investigated the length of time that certain drug residues (sulphamerazine and tetracycline) remain in fish (Wen et al, 2006;Ansari et al, 2012;Pham et al, 2015). They found sulphamerazine and tetracycline residues could still be detected in fish muscle 3-7 days and 17 days after oral treatment, respectively (Pham et al, 2015).…”

Risk of prophylactic antibiotics in livestock and poultry farms; a growing problem for human and animal health

“…(12,13) Thus recently, antibiotic resistance genes (ARG) and antibiotic resistance bacteria were considered as new emerging contaminants. (10,14) At present, large amounts of antibiotics are used to intensively manage animal husbandry in Sri Lanka. This has resulted in high contamination levels of veterinary antibiotics in wastewater from livestock farms.…”

Screening of Autochthonous Intestinal Microbiota as Candidate Probiotics Isolated from Four Freshwater Teleosts

“…There are several routes through which pathogens can enter inside the body; however, entry via the mucosal surface of the gastrointestinal (GI) tract of fish is considered as the major one 6 . Conventionally, to reduce disease risk, different types of antibiotics and medicines are used in the aquaculture sector 7,8 . However, for the past few years, the use of antibiotics and chemical antimicrobials in aquaculture industries has been restricted, as they could cause major risks to human health by promoting the selection of resistant strains 5,9 .…”