Yellow croaker, one of the important economic fishes, is endemic to China. This kind of fish is a warm swimming fish, which often inhabits the middle and lower waters within 60 meters offshore. Breeding season of large yellow croaker. During the breeding period, the fish migrate from the offshore wintering area to the offshore. As a rare economic fish, Pseudosciaena crocea is favored by consumers. However, due to overfishing, resources have been seriously damaged. Breeding preparation Because yellow croaker is difficult to raise, it is necessary to make full preparations before breeding. If it is cage culture, the arrangement of cages should be in accordance with the specifications of yellow croaker. Usually, the water depth in the cage is about four meters. Secondly, in order to avoid scratching yellow croaker, it is best to use soft cage culture. If pond culture is adopted, it is necessary to choose a place close to the water source and disinfect the pond to keep the water god at about two meters. Finally, oxygen supply equipment and water quality adjustment equipment need to be prepared, and formal culture can be carried out after everything is ready.
It is precious to choose yellow croaker as fish species, so we must be very careful when choosing fish species, which can improve the survival rate of yellow croaker culture and reduce losses. We usually choose fish species with uniform body shape, strong and lively, complete scales, shiny skin, no internal trauma and no disease to stock, so that the fish population can be managed in a unified way. Fish stocking We need to disinfect the fish before stocking, because the fish we buy may carry some harmful substances, such as parasites and bacteria. If directly stocked, it will not only pollute the water body, but also affect the growth of fish. Usually we put the fish in formalin for about half an hour, then take them out and keep them in clean water for about a day, and finally keep them in cages or ponds. The feeding and management of yellow croaker mainly feed on frozen mackerel and ginseng. It is necessary to thaw the feed first, then make it into minced meat, and then feed it in a fixed place with some special fish feed.
At the same time, you can also feed some small fish, shrimp and scallop meat in moderation, so that the yellow croaker will have balanced nutrition and will not be malnourished during its growth. Under normal circumstances, newly stocked yellow croaker should be tailed twice, that is, fed once each. When you are older, you can slowly increase your food intake. Daily management The daily management of yellow croaker is very important and requires a little high water quality. If pond culture is adopted, water must be changed, and the pond should be cleaned from time to time for disinfection and sterilization. In cage culture, only the remaining food residues can be fished out after feeding, and then the silt and dirt on the cage can be cleaned from time to time and disinfected. Second, pay attention to the water depth. Cage culture needs to set up a red tide alarm in the farm, so that the depth of the cage can be adjusted in time, while pond culture needs to change water, and it is good to keep it at a depth of two meters after changing water. Finally, pest control. Some drugs that enhance resistance can be mixed in feed. When sick fish are found, they should be taken out in time for isolation treatment, and at the same time, disease prevention should be carried out for the fish.