Matters needing attention in High temperature season of Freshwater White Pomfret
When it comes to summer, the temperature is high, the water quality is changeable, and fish diseases are easy to occur. In order to reduce the impact of high temperature on freshwater Pomfret culture, remind demonstration households to pay attention to the following:
1. Copper sulfate and trichlorfon, as traditional chemical drugs, are widely used in fishery production, and sometimes ferrous sulfate is added as a mixture, but because of the strong toxicity of copper, freshwater Pomfret is more sensitive to copper sulfate. when we use copper sulfate to treat Pomfret, we will encounter that Pomfret does not eat at least 3 to 5 days after treatment, or eat very little, if the drug concentration is excessive. White Pomfret even does not eat for about 10 days. If it is not used properly, it is easy to cause damage to freshwater Pomfret, affect the growth rate, and thus directly affect the economic benefits. The use of trichlorfon in freshwater Pomfret culture is strictly prohibited.
2. dissolved oxygen is very important in freshwater Pomfret culture. once it causes hypoxia in the process of freshwater Pomfret culture, the freshwater Pomfret swims wildly along the edge of the pond, consumes a lot of energy, and hardly eats for at least 5 days. Therefore, in summer, we should patrol the pond every morning and evening, pay attention to the weather changes, and turn on the aerator or change water if necessary.
3. In the high temperature season, bacteria breed quickly, Pomfret eats a large amount of food, the water quality is changeable, and it is easy to suffer from enteritis, bleeding and other diseases. The production cycle of Pomfret is generally 2mi 3 months, it is best to feed bait once every two weeks for three consecutive days, disinfect the pond once or inject fresh water.
4. The habit of freshwater white Pomfret is quiet. It is necessary to estimate the specifications and the percentage on the market before fishing. It is best to complete all fishing twice, more than 70% of the first time, because it takes 3-5 days for freshwater white Pomfret to eat normally.
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