Investigation of using chemical, herbs, and immune booster, strengthen the resistance of freshwater fish raised in Hai Duong

In Hai Duong Province, freshwater aquaculture has developed with 2 popular types: pond culture and cage culture. In 2021, local aquaculture activities are basically stable without disease. This is due to good management, organization of seed production, timely application of technical improvement in meeting with the actual conditions of the locality, environmental monitoring and surveillance of aquatic diseases, and special attention to directing and supervising aquatic veterinary drugs at veterinary drug store in the locality. The aim of this study is to survey 30 veterinary drug stores in Hai Duong to identify which chemicals, herbs and immune boosters are commonly serving the needs local people. The results show that the veterinary drug store in Hai Duong provides a variety of disinfectants, antiseptics, herbs, and drugs to increase the resistance of freshwater cultured fish. There were 10 commercial products that use disinfectants and kill bacterial, in which Povidine 9000 and BKC80 were present in the most of the 30 surveyed stores (56.7%) and up to 50% of products have Iodine as the main ingredients. There were 2 herbs in which garlic predominates (96.6%). There were 9 commercial products used to increase resistance and immunity for farmed fish, of which 8/9 products have Vitamin C ingredient.