Perch culture cycle

The culture cycle of sea bass is about half a year. Taking California sea bass as an example, due to individual growth differences and the habit of killing each other, in order to ensure the survival rate, according to the actual situation in the breeding process, screening and separate culture must be carried out in time.

In the early stage of culture, 5-minute sieves were screened every 7-10 days, and in the middle period, 7-minute sieves were used every 10-15 days, and then entered into No. 6 cage. At the end of June and the beginning of July, they were screened with 9-minute sieves and put into No. 8 cage for 20-30 days. After screening with 1.3-inch sieve, put into No. 10 cage for adult fish culture.

The history of sea bass culture is relatively short, the culture technology is not fully mature, and there is no large-scale fish fry cultivation base. The fry mainly comes from sea fishing, which is caught in spring. Perch culture should be prepared before, choose a large pond with an area of 6-10 mu, too large is not easy to manage, too little water is unstable, the water depth should be more than 2 meters, which requires adequate water source, clean water quality, no pollution and convenient transportation. Disinfect the pond before releasing seedlings, first empty the pond water, expose the bottom of the pond, use bleach or lime powder for disinfection and sterilization to keep the water deep to about 20 centimeters, soak and pour wine, and water can be 1 meter deep after a week.