CATDOLL : CATDOLL: Daily breeding methods for grouper How to raise grouper

1. When choosing, you must pay attention to the quality of the fish. You should choose fish that are strong, energetic, disease-free, without scale damage, and have a good skin color for breeding.

2. There are two main ways to raise adult grouper: cage culture and pond culture. Cage culture is more common. Cage culture of grouper is an intensive breeding method with high stocking density, easy management and high production efficiency, so it has developed rapidly.

3. The environment of the aquaculture sea area should meet the following conditions: good shelter from wind, small waves, and no typhoon attacks; sandy bottom, gravel bottom, and reef bottom are preferred, and the water depth should be more than 4 meters at low tide; the tide is smooth, the flow rate is moderate, and the flow rate in the cage is preferably maintained at 0.20 m/s to 0.75 m/s; the lowest water temperature in winter is not lower than 15°C, and the number of days with water temperature of 22°C to 28°C is not less than 200 days; the water quality is fresh, and grouper has a wide range of adaptability to salinity, and can survive between 11‰ and 41‰, the most suitable salinity is 25 to 32‰, pH=7 to 9, and the dissolved oxygen content is above 5 mg/L; it is not polluted by industrial and agricultural wastewater and urban sewage, and there is no large amount of fresh water inflow during the rainy season, the salinity is not lower than 16, and the transparency is above 1.5 meters; the transportation conditions are good, and the transportation of live fish and the supply of feed are convenient.

4. Currently, the breeding of grouper fry has not yet reached the production requirements, so the farmed fish are still raised from young fish caught in natural sea areas. It is better to catch the farmed grouper fry by hand fishing. When selecting, you must pay attention to the quality of the fish. You should choose fish that are strong, energetic, disease-free, scale-free, and have a good skin color for breeding.