The aquaculture environment includes the atmospheric environment, fish growth water environment and fishery water quality. The breeding environment must comply with the national standard "Environmental Requirements for the Production Environment of Agricultural Products for Safety and Quality of Harmless Aquatic Products" (GB/T 184074-2001), "Fishery Water Quality Standard" (GB/T11607-89), and "Water Quality of Non-pollution Food Freshwater Aquaculture" (NY5051- 2001). Norfolk water disinfectant is used specifically in fish pond mud The initial high concentration is completely sterilized: it is used for sterilization and sterilization of sludge process water. 1) Calculate the silt pool water storage capacity 2) Join Norfolk in a ratio of 1:10000-1:50000, ie if it is 10000L-50000L, only 1L of Norfolk product needs to be added 3) Spray on the surface of the silt and the surface of the water body in the pool. 4) No need to release fresh water, it can be used immediately This can kill bacteria together with water, and at the same time it can provide a weak alkaline water environment for later juvenile fish feeding, which can completely kill pests, parasites and pathogenic bacteria. 5, disease prevention Using the method of "pre-coarse, fine, and precise green" to feed, control the occurrence of bacterial syndrome of fish disease. Usually take the combination of oral administration and external treatment, exfoliation is mainly based on the Novofus water disinfectant, used for 3 days; oral administration of Norfos water fungicide and bait mixed feed, fed with 3-5 days . It is noteworthy that we have now found a very strong resistance to gill disease bacteria, conventional such as enrofloxacin, compound sulfamethoxazole, florfenicol, etc. are invalid. Moreover, it has strong virulence, high mortality, and strong ability to infect. When this happens, it is recommended to select water disinfectants and drugs to prevent germs and select targeted environmentally friendly sterilization products. After investigation, we found that the fish ponds in this case are usually used with too many antibiotics, and often a variety of antibiotics are used in turn, resulting in bacteria that are resistant to multiple antibiotics. Therefore, we suggest that prevention is mainly from the prevention of water quality, regular disinfection of water bodies, and the prevention and control of binding. Features: Appearance: Liquid, no foam, no impurities Solubility: completely dissolved in water Color: colorless / clear Taste: completely tasteless pH value 1.2 The boiling point is 114, 0 C at 1013 Bar. Freezing point -51 C Weight 1.196 kg/l. Biodegradability Norfoss water disinfectant, will not pollute the environment, only water and oxygen after decomposition Decomposition process: 2 H2O2 → 2 H2O + O2 Double anti-fog double films face shield Double anti-fog double films face shield Dongguan Marvec Electronic Technology Co.,Ltd , http://www.marvec-cn.com
1. Aquaculture water selection
Aquaculture waters should be selected from areas with good ecological environment, adequate water sources, and no (or direct) industrial “three wastes†and waters contaminated by agriculture, urban life, and medical waste. There are no sources of pollution that pose a threat to the aquaculture environment within the aquaculture waters, upwinds, and upstream of irrigation sources.
2. Clear the pond
Silt is composed of biological carcasses, residual food, feces, various organic debris, and various organic and earthy sediments. Through the decomposition and ion exchange of bacteria, they are continuously dissolved and released into water, providing nutrients for the proliferation of food organisms. However, too much sludge will produce a large amount of hydrogen sulfide, methane, organic acids, lower amines and mercaptans, etc. These substances accumulate in water and affect the health and growth of fish. Therefore, excess sludge should be removed. The specific measure is that every one or two years of breeding, it is appropriate to drain the pool water and excavate too much silt so that the sludge at the bottom of the pond is kept at about 20 cm.
3. Pond water disinfection
To improve the pond water quality environment, eliminate predators and prevent bacterial diseases, disinfect ponds and water bodies. Norfoss water disinfectant uses water disinfectant with a content of 1 to 2 milligrams per liter in the water body to disinfect and spray with water or atomize in the water tank. It can prevent and kill fish pathogenic bacteria. Common pathogens such as: bacterial gill disease, hemorrhagic disease, bacterial septicemia, streptococcal disease, hepatobiliary syndrome, erythroderma, empyridiasis, bacterial enteropathogenic symptoms, sputum mold, edema disease, white Spot disease, air bubble disease, Chinese sturgeon disease, anchor head sputum disease, third generation worm disease, cell parasite disease, ringworm disease, red knot disease, parasite, mumps, rotten disease, whitish, More than 600 bacterial-induced diseases such as ascites, trichoderma, and pseudomonas disease
4. Water quality management
The water environment is the basis for aquatic products and fish living and growing in ponds. All kinds of fish farming measures also act on the fish body through the water environment. Therefore, water quality management is a "bridge" for the culture of fish and aquaculture without pollution. Normally, Norfoss Water Oxygen Disinfectant is used in the purification of water, and is added to the water tank with 1-2 ml of water per body of sterilizing and disinfectant with water to release active oxygen, which is added once every 3-5 days. The day should be added one day earlier. The new water is added to the pond at a proper time, and the water quality is gradually regulated by means of “small rows of small advances and multiple changes of waterâ€. From June to September, add new water once every 3-5 days, add about 10 centimeters of water each time, every 15-20 days, 1 meter deep water surface, water body, oxygen disinfection agent 2-4 ml Spatter atomized once. To ensure that there is plenty of plankton in the pond water, and there are abundant organic matters and nutrient salts, the transparency of the pool water must be kept between 25-40 cm, the dissolved oxygen in the water is more than 4 mg, the pH is 7-8.5, and the water quality reaches “fat, Live, tender, cool" requirements.