Siniperca chuatsi is a common freshwater fish, which is widely distributed in China. Siniperca chuatsi is a typical carnivorous fish, and their main food is all kinds of meat. Wild mandarin fish live in rivers, ponds, lakes and other places, and mainly prey on other small fish in the water, such as crucian carp and striped fish.
As the size of mandarin fish increases, they can catch more and more fish. Besides fish, Siniperca chuatsi can also prey on other animals, such as shrimp, frogs and various aquatic insects, which may become the food of Siniperca chuatsi.
Matters needing attention in mandarin fish culture
1, reasonable nesting, mandarin fish feed on live bait. Under the condition of ensuring the normal culture density of Siniperca chuatsi, it is necessary to nest a certain number of bait fish, which easily leads to a large fish load in the pond, and the feces and residual bait are also correspondingly large. Therefore, in the production process, a certain number of silver carp and silver carp can be properly nested as filter-feeding fish to maintain normal material and energy circulation in the pond.
2. Reasonable stocking density. At present, the culture methods of mandarin fish in Jiangsu, Zhejiang and Guangdong are mostly single pond culture. In order to improve economic benefits, some farmers often adopt high-density culture, which increases the density of bait fish, increases the matching load of breeding ponds, increases metabolites, and accumulates a lot of harmful substances such as ammonia nitrogen, which leads to the deterioration of the water quality environment in ponds and harms the health of mandarin fish.