I. Incubation Ring Road (Barrel) Fry Rearing

The ring road is a special water body which simulates the natural ecological conditions so that the fish eggs are constantly tumbling. Directly adopting the ring channel to nurture the fry provides the living environment required by the Mandarin fish fry. More importantly, at the time when the Mandarin fish fry open their mouths to feed, they are fed with palatable bait fish - other live fish fry not long after deveining, which not only meets the nutrients required by the growth and development of the Mandarin fish fry, but also maintains the fresh water quality. During the cultivation process of Siniperca chuatsi fry, attention should be paid to the disadvantage that the ring channel is not easy to be drained to prevent the deposition of silt and humus in the ring channel. After 5 to 7 days of cultivation, a sunny day should be chosen and the ring should be turned at the right time around 10:00 am. Siniperca chuatsi fry are voracious for food, it is best to stop feeding bait fish 12 hours before the turn of the ring to ensure that the turn of the ring on an empty stomach to reduce losses.

Two, net box nursery

Net box is the ideal place to cultivate Siniperca chuatsi fry. It can ensure sufficient and easily available bait, as well as fresh water for constant exchange. The disadvantage is that you can not feed the feed fish that have just been removed from the membrane, and you need to wash the box frequently and replace the net box regularly, which makes the management of the fish fry more complicated and difficult to operate. Nets generally take three levels of nursery method: I level box, with 40 ~ 28 mesh / 3 cm of polyethylene mesh sewn into the my mouth box, 4 to 6 meters long, 1 meter wide, 1 meter deep; II level box, with the mesh 0.3 cm woven polyethylene mesh sewn into the my mouth box, 2 meters long, 1 meter wide, 1 meter deep; III level box, is with the mesh 0.5 cm woven polyethylene mesh sewn into the my mouth box, 2? meters long, 1 meter wide, 1 meter deep. I, II, III three net box area supporting ratio of l:10:20.

Three, cement pool nursery

Cement pool is generally 4 meters × 6 meters × 0.8 meters, can also be slightly larger or smaller. But the bottom must have a certain inclination, the bottom of the drainage at the seedling set pool, there are inlet and outlet devices. Drainage device consists of rubber tubes and filters and support wire, rubber tube mouth fixed in the center of the wire frame, no matter how to place the requirements will not be discharged in the pool water, seems to maintain a certain water level. Drainage flow by the number of drainpipes and outlet height control.

Four, small earthen pond breeding

Chiniperca chuatsi grows to about 3.0 centimeters, can be put into a small pond to cultivate, put the amount of about 150,000 tails / hectare. Bait fish must be pre-cultivated in the pond. Generally, 10 to 15 days before the release of Mandarin fish species put bait fish fry, the release amount of 15 to 22.5 million tails / hectare. Add a small amount of new water regularly every day to prevent deterioration of water quality.