Cultivation methods and matters needing attention of mandarin fish

1. pond conditions: the pond area is generally 2-4 mu, and the water depth is about 2 meters. Mainly rectangular, with fresh water quality, little or no mud at the bottom, and complete irrigation and oxygenation equipment.

2. Breeding of bait fish: According to the principle of good palatability and low economic cost, fry varieties such as silver crucian carp, white crucian carp, bream, silver carp and silver carp can be selected as bait fish. Use the idle period before stocking osmanthus fish in the pond to cultivate early bait fish. You can cultivate crucian carp or bream fry by yourself, or put all kinds of fry about 20 days before stocking osmanthus fish, and the stocking amount is 400,000-600,000 per mu. The feeding method is to feed with soybean milk or other feed, and the bait fish should be fed in a special pond in the middle and late stage. It is appropriate to adopt the methods of high-density feeding in multiple ponds, phased fishing and gradual sparse fishing to ensure the synchronous growth of bait fish and mandarin fish.

3. Stocking of Siniperca chuatsi: The stocking time is generally June, and the stocking specification should be 6- 10 cm, which has the advantages of high survival rate and fast growth. Generally, the stocking quantity per mu is 500-800.

4. Baited fish: During the adult fish culture, it is advisable to eat enough every day. If there are too few bait fish, it will affect the growth of mandarin fish or kill each other.

5. Water quality control: Guiyu pond should control the water quality and change the water frequently. The high temperature season from June to September is the feeding season, so it is necessary to inject and drain water once a week, and the water exchange rate is 0.4m each time, and the transparency of the pool water is kept above 40cm.