Matters needing attention in silver carp culture

Silver carp culture is a common aquaculture in all regions of China, and its distribution is very wide. At the same time, it is also an aquaculture project that has become rich in many rural areas. Silver carp has the advantages of easy breeding, fast growth, high reproductive efficiency and low breeding cost, but in spite of this, many people still failed to breed. Why? It is mainly because a lot of problems are ignored when breeding, so it leads to the failure of breeding. Then let's take a look at some points for attention on silver carp culture that the editor has sorted out for you.

1. Cleaning of fish ponds

Before we cultivate silver carp, we should first clean up the pond used to cultivate silver carp. Generally, we should clean up the excess silt from the fish pond and keep the branches 20 centimeters thick. Then sprinkle with quicklime for disinfection, after disinfection, drain the water, and then bask in the pond, which usually lasts about 10 days. Finally, new water is injected and sufficient farm manure is poured into the fish pond to cultivate fertilizer and water, and to increase the content of plankton in the water to provide food for silver carp.

2. Fish fry selection

The selection of silver carp fry is the basic condition of culture cost, so we should choose high-quality silver carp fry. So what kind of silver carp fry is of high quality? In general, we will choose fry according to the species of silver carp we choose, such as silver carp and Changfeng silver carp, we should choose active, good-looking, robust, scar-free fry with complete fins. Silver carp need to choose mild, good feeding state, strong fry. It is also important to note that the specifications of fish fry must be uniform, neither too large nor too small.

3. Stocking density

Before stocking, we need to carry out trial culture and fish fry disinfection, which is also a very critical point. After the trial breeding is successful, the seedlings are raised and released according to the reasonable density. Under normal circumstances, 150000 to 200000 silver carp can be cultured in one mu of fish ponds, but after the fry grow, we still need to carry out proper grouping culture, otherwise the oxygen in the water is not enough to supply so many silver carp, and silver carp is also a kind of fish that is extremely intolerant to hypoxia. In the later stage, the average number of silver carp farmed per mu is about 5,000.

4. Water quality management

In fact, we can see that many silver carp are basically used to change water in a year, but the output and quality of silver carp are not very high. In fact, silver carp culture also needs to change the water, but the general situation is to change the water every other month or so, and only once every three months in winter. But when we breed, we must pay attention to the oxygen content in the water, and always prepare the oxygen supply machine or oxygen enhancer. In addition, we should pay attention to the temperature of the water body, raise the water level appropriately in summer and lower the water level appropriately in winter. The last thing is to ensure the fertility of the water body, generally remember to gain weight after each change of water.

5. Feeding and management

Silver carp mainly feed on natural plankton, so it is very important for us to cultivate plankton in water in the process of culture. Secondly, we also need to properly feed some concentrate, such as yellow powder insects, red worms, earthworms and other refined feed, feed must be diversified, a single feed may lead to malnutrition. In addition, do not often change the feed, the replacement of feed must meet the growth needs of silver carp. Finally, the amount of feed should be fed at a fixed time and place according to the growth of silver carp, weather changes, feeding conditions and so on.

Today, the editor wants to introduce to you the matters needing attention in silver carp culture. I hope you must pay attention to these details in the future culture. There is not an old saying in the Middle Ages that "details determine success or failure", so we must pay attention to it.