Method for seeding portunus tritubereulatus by means of water retention
A technology of swimming crabs three warts and a reservoir, which is applied in fish farming, application, climate change adaptation, etc., can solve the destruction of non-pathogenic microorganism populations of shrimp and crabs, the threat to the quality and safety of shrimp and crab products, and increase the cultivation time, etc. problems, to achieve the unity of social and ecological benefits, reduce the incidence of diseases, and facilitate the growth of larvae
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Embodiment 1
[0020] A method for water conservation and seedling cultivation of Portunus trituberculatus, comprising a preliminary water treatment step, an egg laying step and a cultivation step:
[0021] The pre-water treatment step is to add water at 15°C to the reservoir after sedimentation and sand filtration, continue to shading and sedimentation for 3 days, and then add quicklime, formaldehyde and penicillin sodium in the form of aeration to fully mix and sterilize for 3 days;
[0022] The step of laying eggs is to first shut off the air in the above-mentioned reservoir for 3 hours, then draw the surface water of the above-mentioned reservoir into the hatching pond by hanging it with a water pump, then add concentrated photosynthetic bacteria and nitrifying bacteria to the hatching pond, and put The water in the hatching pond is warmed up to 20°C and ventilated, and the species of crabs are sterilized with potassium permanganate and hung on the hatching pond to lay eggs;
[0023] The...
Embodiment 2
[0030] A method for water conservation and seedling cultivation of Portunus trituberculatus, comprising a preliminary water treatment step, an egg laying step and a cultivation step:
[0031] The preliminary water treatment step is to add water at 16°C to the reservoir after sedimentation and sand filtration, continue shading and sedimentation for 4 days, and then add quicklime, formaldehyde and penicillin sodium in the form of aeration to fully mix and sterilize for 3 days;
[0032] The step of laying eggs is to first shut off the air in the above-mentioned reservoir for 3 hours, then draw the surface water of the above-mentioned reservoir into the hatching pond by hanging it with a water pump, then add concentrated photosynthetic bacteria and nitrifying bacteria to the hatching pond, and put The water in the hatching pool is warmed up to 22°C and ventilated, and the species crabs are sterilized with potassium permanganate and hung on the hatching pool to lay eggs;
[0033] T...
Embodiment 3
[0040] A method for water conservation and seedling cultivation of Portunus trituberculatus, comprising a preliminary water treatment step, an egg laying step and a cultivation step:
[0041] The pre-water treatment step is to add water at 17°C to the reservoir after sedimentation and sand filtration, continue to shading and sedimentation for 5 days, and then add quicklime, formaldehyde and penicillin sodium in the form of aeration to fully mix and sterilize for 4 days;
[0042] The step of laying eggs is to stop the above-mentioned reservoir for 4 hours at first, then hang the water pump to draw the surface water of the above-mentioned reservoir into the hatching tank, then add concentrated photosynthetic bacteria and nitrifying bacteria to the hatching tank, and put The water in the hatching pool is warmed up to 25°C and ventilated, and the species of crabs are sterilized with potassium permanganate and hung on the hatching pool to lay eggs;
[0043] The cultivation step is ...
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