Artificial breeding method for Lethrinus nebulosus Forskal
A naked-cheek seabream and artificial technology, which is applied to the field of artificial seedlings of the star-spotted sea-cheek seabream, can solve the problems of long growth cycle, low survival rate, poor meat quality, etc., and achieve the effects of promoting absorption, rapid growth and development, and high nutritional value.
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Embodiment 1
[0024] A method for artificially raising seedlings of star-spotted bream, comprising the following steps:
[0025] (1) Setting of cultivation pool
[0026] Choose a cultivation pool with an area of 3 acres, a flat ground, a pool depth of more than 3 meters, and a water storage depth of more than 2.5 meters. The inner slope around the pool is built with red bricks, the surface is plastered with cement mortar, the bottom of the pool is sandy loam, the water inlet and outlet are smooth, and the four corners of the pool are diagonal Aerators are installed on the line, and the stocking density of larvae is 4000 fish / m 2 ;
[0027] (2) Water quality management in cultivation ponds
[0028] Keep the transparency of the nursery pond at 45cm, adjust it by pumping seawater, change the water every 3 days, control the water temperature at 25°C, the pH value at 6.0, the dissolved oxygen at 3mg / L, and spray 0.5×10 photosynthetic bacteria every 7 days. 9 CFU / mL, nitrifying bacteria 1.8×...
Embodiment 2
[0038] A method for artificially raising seedlings of star-spotted bream, comprising the following steps:
[0039] (1) Setting of cultivation pool
[0040] Choose a cultivation pool with an area of 5 acres, a flat ground, a pool depth of more than 3 meters, and a water storage depth of more than 2.5 meters. The inner slopes around the pool are built with red bricks, the surface is plastered with cement mortar, the bottom of the pool is sandy loam, the water inlet and outlet are smooth, and the four corners of the pool are diagonal Aerators are installed on the line, and the stocking density of larvae is 8000 fish / m 2 ;
[0041] (2) Water quality management in cultivation ponds
[0042] Keep the transparency of the nursery pond at 60cm, adjust by pumping seawater, change the water every 5 days, control the water temperature to 30°C, the pH value to 9.0, the dissolved oxygen to 5 mg / L, and spray 1×10 photosynthetic bacteria 3 times every 10 days. 9 CFU / mL, nitrifying bacter...
Embodiment 3
[0052] A method for artificially raising seedlings of star-spotted bream, comprising the following steps:
[0053] (1) Setting of cultivation pool
[0054] Choose a cultivation pool with an area of 4 acres, a flat ground, a depth of more than 3 meters, and a water storage depth of more than 2.5 meters. The surrounding slopes of the pool are built with red bricks, and the surface is plastered with cement mortar. The bottom of the pool is sandy loam, the water inlet and outlet are smooth, and the four corners of the pool are diagonal Aerators are installed on the line, and the stocking density of larvae is 6000 fish / m 2 ;
[0055] (2) Water quality management in cultivation ponds
[0056] Keep the transparency of the nursery pond at 50cm, adjust by pumping seawater, change the water every 4 days, control the water temperature at 28°C, the pH value at 7.0, the dissolved oxygen at 4mg / L, and spray 0.8×10 photosynthetic bacteria twice every 8 days 9 CFU / mL, nitrifying bacteria...
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