Detailed Explanation of Silverfish Seedling Cultivation Methods and Technical Points

Many people may not be familiar with silverfish. It is a translucent fish with a relatively slender body, very similar to salmon, and some also call it noodle fish. Silverfish is one of China's four famous fish, with high economic value, and it is mainly distributed in Poyang Lake, Dongting Lake, the Yangtze River and Taihu Lake. So today we will learn about silverfish seedling cultivation methods and understand how silverfish are bred.

1. Pond preparation

For silverfish seedling cultivation, the pond is best chosen as an old pond, with sufficient and pollution-free water resources nearby, windbreaks around the pond, good lighting conditions, and convenient water changing. Then set up nets in the pond, properly remove the mud at the bottom of the pond, carry out disinfection and pond drying, and finally fill with new water and put in an appropriate amount of resting rotifer eggs for cultivation, which can provide certain food for silverfish. After putting in the resting rotifer eggs, you must wait at least two weeks before stocking seedlings, and at this time the water depth is best at 60 cm.

2. Seedling selection

We can purchase silverfish seedlings from regular breeding bases, which is the simplest way. We only need to understand the local silverfish rearing situation and choose healthy, uniformly sized, high-quality seedlings for rearing. Secondly, we can also cultivate them ourselves by collecting mature parent fish from natural waters, then carrying out artificial fertilization, and then conducting still-water incubation for about one month to cultivate silverfish seedlings. Moreover, this seedling method has a very high hatching success rate, and more importantly, the variety is relatively pure and the survival rate in rearing is also relatively high.

3. Seedling stocking

When stocking, our usual habit is to wait until the fry have been cultivated and reared for a period of time before putting them into the breeding pond, so the survival rate of rearing will be relatively higher. But silverfish differs somewhat from other fish. It is best to put the fish eggs into the breeding pond about one week before the fry hatch successfully, so the survival rate of silverfish will be a bit higher. Secondly, pay attention to the stocking density. Generally, it is best to put 20,000 fertilized eggs per mu, so as to avoid excessive density affecting the normal growth of silverfish. Finally, at this time the water level in the pond should be slightly deepened, generally not exceeding 1.5 m.

4. Cultivation techniques

The cultivated fry mainly feed on rotifers. If after the fish eggs hatch into fry, there is not enough food when the fry begin to feed, then the fry will die, which is why we need to put in rotifers before cultivation. Secondly, when cultivating fry, we also need to ensure the fertility of the water body, which can increase the content of plankton in the water body and ensure sufficient food. In addition, during the seedling stage, we also need to fertilize frequently, reasonably control the water temperature, and adjust the water level to about 2 m. After the fry have fully adapted to the pond environment, they can be reared according to the standards for adult fish.

The seedling work for silverfish is actually very simple, and there is not much technical difficulty. Generally, a farmer with a little experience can complete it. The editor has briefly introduced the cultivation methods of silverfish seedlings above. If there is anything you still do not understand, you can leave a message for consultation.