Key points of breeding and management of fish ponds in spring

The temperature gradually rises in spring, and the water temperature will slowly rise with the temperature, and the fish in the fish pond will slowly increase their vitality. Therefore, to do a good job in the breeding and management of fish ponds in spring is very important for the growth of fish throughout the year, if it is not managed properly, it can easily lead to a variety of adverse phenomena. So how to manage it? The following editor brings you the key points of breeding and management of fish ponds in spring. Let's have a look!

1. Clear the pond and disinfect

First of all, we need to remove part of the silt from the bottom of the fish pond and do a good job in clearing the pond. About 2-3 weeks before fry release, pay attention to discharge the pool water and expose the bottom of the pond to the sun for about 4 days. Then apply an appropriate amount of quicklime powder per mu of pond for disinfection, and then inject water into the pond to keep the water level at about 55 cm. If it is inconvenient to drain water, then special pond cleaning drugs such as raw lime powder should be used to disinfect fish ponds with water. The dosage of drugs should be adjusted reasonably according to the water level of the pond to ensure that the purpose of sterilization is achieved.

2. Sowing seeds in time

The stocking time of fish species should be early, and for intensive ponds, it is best to put in mainly in winter and supplemented in spring. Early planting time can make it faster to adapt to the growth environment, promote growth and improve the growth period. And the temperature of the early spring has not fully recovered, the meat quality of the fish is more tight, the scales are compact, and the injury rate is small in advance, which is beneficial to late transportation and improve the survival rate. Seed can be released when the water temperature is about 9 degrees, but salt, baking soda and other substances should be used to disinfect fish fry before planting to avoid carrying germs.

3. Bait delivery

Fish that spend the winter in fish ponds consume a lot of nutrients because they need a lot of energy to maintain their overwintering temperature. Therefore, when the water temperature is kept above 10 degrees, for some fish whose food is mainly omnivorous bait, it is necessary to feed them earlier. Feed at least once a day, and the bait is mainly fine feeding such as cornmeal to ensure the cleanliness of the bait. Then when the temperature rises again, it is best to feed twice a day. However, when the water temperature is low, the vitality of the fish decreases and the appetite becomes worse. At this time, you should stop feeding the bait and feed it again when the temperature is right.

4. Apply grass and wood ash

Plant ash is a kind of fertilizer commonly used in fish culture, because the trace element content of plant ash is very high, and it is a kind of potash fertilizer with high fertilizer efficiency. Regular application of plant ash can effectively increase the content of potassium, calcium and other nutrients in pond water, increase the content of plankton in pond water, and provide natural bait for fish. And plant ash also has a strong germicidal ability, which plays a strong role in eliminating germs in pond water and fish. However, do not sprinkle directly in dry ash mode, soak for about 5 hours, and then pour it into the pond comprehensively and evenly.

The above is a brief introduction to the main points of breeding and management of fish ponds in spring, of course, we also need to do a good job in the prevention and control of fish diseases to avoid infection affecting the growth of fish and reduce the efficiency of culture. That's all for today's introduction. This article is for reference only. I hope it can help you all.