Key Points for Spring Fish Pond Rearing Management: What Fish Bait Is Suitable and How Many Days After Disinfection to Stock Fish

In spring, temperatures gradually rise, and the water temperature slowly increases along with the temperature, so the fish in the pond gradually become more active. Therefore, doing a good job of fish pond rearing management in spring is very important for the fish's growth throughout the year. If managed improperly, it can easily lead to various adverse conditions. So how exactly should it be managed? Below, the editor brings you the key points for spring fish pond rearing management. Let's take a look!

1. Pond clearing and disinfection

First, we need to remove part of the silt at the bottom of the fish pond and do a good job of pond clearing. About 2-3 weeks before stocking the fry, drain the pond water and expose the pond bottom to the sun for about 4 days. Then apply an appropriate amount of quicklime powder per mu to the pond for disinfection, then fill the pond with water and keep the water level at about 55 cm. If draining is inconvenient, then use quicklime powder and other specialized pond-clearing agents to disinfect the fish pond with the water still in it. Adjust the amount of the agent used reasonably according to the pond water level to ensure the disinfection purpose is achieved.

2. Stocking seed in time

The stocking time for fish seed should mainly be early. For intensively cultured ponds, it is best to stock mainly in winter, with spring as a supplement. Stocking earlier allows the fish to adapt to the growing environment faster, promotes growth, and increases the growing period. Moreover, since early spring temperatures have not fully risen, the fish flesh is relatively firm and the scales are tight, so the chance of injury from early stocking is small, which is beneficial for later transport and improves the survival rate. Fish seed can be stocked when the water temperature is about 9°C, but before stocking, use salt, baking soda and other substances to disinfect the fry to avoid carrying pathogens.

3. Bait feeding

Fish that overwinter in the pond consume a great deal of nutrition because they need large amounts of energy to maintain their body temperature through the winter. Therefore, when the water temperature remains above 10°C, for fish species that mainly feed on omnivorous bait, the feeding time should be earlier. Feed at least once a day, mainly with fine feed such as cornmeal, and ensure the bait is clean and sanitary. Then when the temperature rises again, it is best to feed twice a day. However, when the water temperature is relatively low, the fish's activity decreases and their appetite worsens. At this time, stop feeding bait and feed again after the temperature becomes suitable.

4. Applying plant ash

Plant ash is a commonly used fertilizer in fish farming, because plant ash has a very high content of trace elements and is a potassium fertilizer with relatively high fertilizing effect. Regularly applying plant ash can effectively increase the content of nutrients such as potassium and calcium in the pond water, raise the content of plankton in the pond water, and provide natural bait for the fish. In addition, plant ash also has strong sterilization ability and has a strong effect on eliminating pathogens in the pond water and on the fish body. However, it must not be sprinkled directly in dry ash form. It should first be soaked for about 5 hours, then evenly and thoroughly sprinkled into the pond.

The above is a brief introduction to the key points for spring fish pond rearing management. Of course, we also need to do a good job of fish disease prevention and control to avoid infection and disease affecting fish growth and reducing breeding benefits. That is all for today's introduction. This article is for reference only, and I hope it can help everyone!