Channa asiatica

Belongs to the order Perciformes, the suborder Perciformes, the Channa family, and the genus Channa.

Common names: Guangdong: Seven-star fish, mountain flower fish, mountain grouper, point scale fish, scale star fish, star light fish; Guangxi: star fish, Zhanggong fish; Taiwan: Youdai.

English name: Snakehead, Chinafish.

Cardyard cultivation techniques of moon snakehead:

1 Build a good fish pond

Choose the vacant land in the yard or in front of and behind the house to build, either land or cement pond . The shape of the pool depends on the location, either square or rectangular. The pool area should not be too large, usually 50-60m2; the water depth of the pool should be 80-100cm, and the pool wall should be 50cm higher than the water surface, or a screen window should be used to fence the pool above the water surface with a height of 50-100cm to prevent snakeheads from jumping out and escaping. If you build a cement pool, the walls should be smooth to prevent the fish from being scratched; the bottom of the pool should also have a mud depth of 20-30cm. The pond is equipped with inlets and outlets, and fish blocking facilities are installed.

2 Reasonable stocking

The stocking density is mainly based on water quality and bait. If the water is plentiful, put more live bait, otherwise put less. But generally, 30-40 fish species with a size of 3-5cm are released per m2. And the stocking specifications are required to be neat and consistent, lively and robust. In this way, their individual growth will be uniform, which will help improve the growth rate and survival rate. If raised properly, the current year's seedlings, usually released in spring, can grow to more than 100g by the end of the year.

3 Scientific feeding

For fish species with a body length of less than 10cm, snail and clam meat can be minced into meat paste and fed. If conditions permit, it is best to feed some live water fleas or water fleas. Water worms. If the body length is more than 10cm, its feeding ability will be enhanced, so dry miscellaneous fish can be used instead. Baiting should be based on the "four determinations" principle. That is, timing: twice a day, once in the morning and once in the afternoon; quantitative: the daily feeding amount accounts for 8%-10% of the fish body; qualitative: the bait must be fresh and delicious, and cannot be fed to become moldy or hard and difficult to digest. At the same time, the particle size of the bait should also be appropriate to facilitate fish feeding; positioning: fix the feeding point and set up a bait table, which is conducive to improving the utilization rate of the bait and making it easy to observe and grasp the feeding situation of fish. Scientific baiting.

4 Careful management

Moon snakehead has the characteristic of big fish eating small fish. Therefore, in addition to the above-mentioned stocking specifications, it must be neat and consistent after a period of time. Separate the culture in time and breed it in different pools according to different specifications. Two points should be highlighted in management: first, the water quality should always be kept fresh; second, the appropriate depth should be maintained. At the same time, use 1/3 of the water surface to cultivate water hyacinth and water lotus. This will not only help the snakehead to live in and escape the heat, but also help purify the water quality. In normal times, we must patrol the pond and do a good job in drought prevention, flood prevention, theft prevention, escape prevention, disease prevention and enemy prevention. In terms of disease prevention, because moon snakeheads have strong pain resistance, as long as they are operated strictly according to the requirements and regularly use medicine to disinfect the water body and eliminate pests, there are generally few diseases.