Fish farming solves four major problems
1. In summer, the water temperature is high, the water body is stratified with the temperature, and the bottom layer has low dissolved oxygen and the water quality is easily deteriorated. Countermeasures: Control the depth of the pond water, and control the pool water to 1.2-1.5 meters so as to promote self-convection of the water from top to bottom and avoid anoxic zones at the bottom. Atmosphere at noon on a sunny day, to promote the convection of the water body up and down. When the water quality deteriorates, it indicates that the concentration of ammonia nitrogen or nitrite in the water is high, and the bottoms improver can be used for the whole pool to reduce the content of organic matter and ammonia nitrogen and nitrite in the water, and to extend the time for using the oxygenerator. 2. In summer, the water temperature is high, the digestion and absorption rate of fish is reduced, the growth rate of fish is slowed, physiological metabolism is poor, and anti-stress ability is reduced. Countermeasures: In the case of ponds with drainage conditions, well water can be added to the pool before or after the noon aeration machine opens, and the upper layer of high-temperature water can be drained on the other side of the pond. For ponds with no drainage conditions, water plants such as water hyacinth and duckweed can be introduced to cover 1/10 of the surface of the water, which can lower the water temperature. Change the feeding time before 11 am and after 4 pm to avoid the high temperature of the surface water at noon. 3. The food intake of fish is large, and some feeds with low quality or containing undesirable substances and hormones can seriously affect the breeding effect. Countermeasures: Buy high-quality brand feed, add about 300 grams of vitamin C per ton of feed, which can protect the liver of fish, enhance physical fitness, and improve immunity and detoxification. The amount of feed that should be fed should not be too much, adhere to 80% fullness principle, in order to avoid oversaturation caused by fish digestion and malabsorption and intestinal diseases. 4. In summer, the water temperature is high, and the toxic effects of disinfecting drugs and insecticides on fish increase, and it is easy to kill the fish and cause death. Countermeasures: Prevention of fish diseases in summer should be based on the regulation of water quality and improved sediment quality, and the use of drugs should also be based on environmental protection drugs that improve the environment and protect the environment. In the adjustment of water and fertilizers, fertilizers and fertilizers, compound fertilizers and other algae-based nutrients are mainly used; in the prevention and treatment of diseases, chemical drugs with high toxicity are avoided, and environmentally friendly products such as bacteria and algae nets should be selected. drug. Dried Fruit,Freeze Dried Strawberries,Dehydrated Fruit,Dried Goji Berries Xi'an Gawen Biotechnology Co., Ltd , https://www.agolyn-bio.com