Water quality: Bass can grow in fresh water, but according to its natural habits, it is better to choose brackish water waters where the tide reaches. Fish ponds and reclamation areas at the mouth of rivers and seas are the best. The water quality is salty. The concentration can be below 5‰, and the growth rate will be slow when cultured in waters with high salinity. In addition, the culture water quality requires freshness and sufficient dissolved oxygen. ?

Pond: The area of ??each pond is 8-15 acres, and the water depth is more than 2 meters. The pond is too small, the water body is narrow, and the dissolved oxygen is insufficient, making it difficult to produce high yields; the pond is too large and deep, which is not conducive to production operations. The pond should be equipped with inlet and drainage culverts leading to the inlet and drainage rivers respectively, and the breeding water should not be reused to avoid secondary pollution. ?

Mechanical equipment: Every 3 acres of water surface is equipped with a 1.5-kilowatt impeller aerator, which is the basic condition for high-yield breeding; each pond is equipped with more than one 3-kilowatt water pump to ensure that it can be used at any time. Replacement of new water is more necessary for ponds without inlet and drainage gates; in addition, it is necessary to configure a small fish mincer according to the breeding area and feeding amount. ?

In order to ensure smooth production, in addition to the power lines to the pond for the use of breeding machinery, there is also a road to the pond to facilitate the transportation of feed and products. ?

Feed?

1. Small miscellaneous fish should be fresh and have few hard bones. They can be beaten and fed in the seedling stage. As the individual grows up, it should be cut into pieces and fed. Bass can swallow fish pieces that are 1.5 times the length of their mouth clefts. Cutting and feeding them can not only save feed, but also reduce water pollution. Small trash fish are high in animal protein and can grow quickly when fed to bass. However, they are limited by resources, especially during the annual fishing ban, and are difficult to purchase due to high price shortages. They are also subject to refrigeration and transportation restrictions and have certain pollution to water quality. The feeding coefficient of using small trash fish as feed is about 4-5. ?

2. Artificial pellet feed uses extruded feed containing more than 35% protein in order to observe whether there is food waste. The pellet feed produced in the factory can be divided into various sizes and specifications. In theory, it can be made into a full-price nutritional feed that is no worse than that of small fish, and can be appropriately mixed with disease prevention drugs. Artificial feed has a stable source and is easy to use, especially for high-density breeding, reducing water pollution and preventing fish diseases. The feed coefficient is about 2-?2.5.

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