Abstract
AbstractUsing the econometric approach of Ordinary Least Squares, this study has identified the key factors affecting the use of inorganic chemicals in coastal aquaculture in South Central Vietnam. These factors included the amount of training and support policies for extensions and the level of participation by cooperative groups in aquaculture activities. The greatest impact factor to the use of inorganic chemicals in aquaculture was “Fishery Extension Support Policy Group” by −0.747. This value means that if the remaining variables do not change and this variable increased by one unit (meaning that an increasing in support including capital, machinery, the consultants, seed for aquaculture farmers), the use of chemicals in aquaculture sector will decrease 0.747 units. In contrast, the level of “participation in cooperative groups” in aquaculture in Vietnam was directly proportional, extended to the use of inorganic chemicals with a coefficient by 0.706. This result suggests that households participatin...
Highlights
The South Central region (SCR)1 of Vietnam is an area with a high degree of potential in the aquaculture sector relative to the country as a whole
Comments and discussion According to the regression results described above, after testing the hypotheses and excluding statistically insignificant variables, the generalised regression function of the factors that affect inorganic chemical use in aquaculture was obtained through the following function, using a significance level of 5% and a confidence level of 95%: LnSDHC
The regression results confirm the influential role of the following factors in determining inorganic chemical use in aquaculture in the South Central provinces: fishery extension training policies, fishery extension support policies, and the level of participation in cooperatives
Summary
The South Central region (SCR) of Vietnam is an area with a high degree of potential in the aquaculture sector relative to the country as a whole. The aquaculture sector in the SCR still confronts a variety of drawbacks, namely, (1) environmental pollution issues caused by the overuse of antibiotics and inorganic chemicals, (2) instability in aquaculture output due to antibiotic redundancy in the harvested product and (3) the unpredictability and large scale of disease occurrence (Bui, Bui, Chau, Luong, & Le, 2013– 2014). The significant concern with such practices is that many of the aquaculturists administering these antibiotics do not possess a sufficient understanding of these drugs to be able to prevent and treat diseases on a large scale. They tend to administer higher doses of the antibiotics than is allowed. These poor practices result in increased antibiotic resistance, the entry of antibiotic residue into animal farms, environmental pollution and effects on the health of consumers
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