Discussion on the breeding technology of grouper in high position in pond

The meat of gentian is delicious and precious. It is said that in Japan it is used as a tonic for sumo wrestlers and wrestlers before competitions. It can enhance physical strength and endurance. Its growth rate is fast, reaching 1.5kg～2kg in the first year, and 2 up to 8kg～1. Method of raising seedlings in high pools
Seawater containing eggs, larvae and adults of rotifers and copepods is directly extracted from the natural sea area and added to 0.8m～1m, and then chicken manure or bird manure is added for fertilization. When the pool water reaches a certain fertility level, it is fertilized through 5 to 7 days. Use 60 mesh sieve to install the drainage net frame at the middle drainage outlet, and then use 100 mesh sieve to filter the water on the day of water inflow. 3.Preparation of the hatching water bag. The fish egg hatching water bag is length4m, width3m, depth4.The hatching of fertilized eggs is purchased from the seedling farm in Sanya. 0.8kg fertilized eggs are spherical, separated, floating and transparent.At 2006 on the morning of 11 on August , 11, place it in the prepared incubation water bag for hatching. The water temperature is 29℃ and the specific gravity is 0.8m～1m. After 22 hours to 25 hours, eyes can grow and open. 5.Cultivation of seedlings Before putting the seedlings into the pond, install 1 a small air pump on the side of the pond, install2 day, 1 times a day to the 5 to 7 days. Start feeding nutritionally fortified rotifers and
When the dorsal and pectoral fins are elongated in the early stages, try to keep the water quality stable and add as little water as possible. At this time, bovine fungi or photosynthetic bacteria can be used to control the water quality. After 15 days, when the pelvic fins are contracted, appropriate water changes can be made, with daily water changes of about 10%~20%. At this stage, start
3.Bait of different sizes and types should be replaced in time at different development stages. 5.Check the reduction of bait in the pond every day, and always keep track of the amount of food ingested and baited.