Culture method of Helice tientsinensis megalopae
A technology of Tianjin thick crab and cultivation method, which is applied in fish farming, application, climate change adaptation, etc., can solve the problems of low cultivation efficiency and achieve the effect of good seed quality and high yield
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Embodiment 1
[0042] A method for cultivating larvae of Tianjin thick crab bigeye, which comprises the following steps:
[0043] a. The structure of the nursery pond: the appropriate excavation of the nursery pond is rectangular, the area of each pond is 1 mu to 3 mu, the water depth is generally 1.3 meters, the aerated stone is generally one every 30 square meters, and the surrounding slope ratio is 1:1 .
[0044] b. Water intake and disinfection: Use a 150-mesh filter to feed 1.3 meters of water at a time. Disinfect the water body 15 days before the larvae incubate. Use 50 kg bleach powder per mu. Measure the chlorine content of the water body 10 days after disinfection, and remove residual chlorine with sodium thiosulfate.
[0045] c. Fertilizer water: After disinfection and removal of residual chlorine in step (2), use compound fertilizer 4 kg / mu. After the water is dissolved, the whole pond is splashed. Generally, the water transparency will reach about 25 cm after five days. If the transp...
Embodiment 2
[0054] A method for cultivating larvae of Tianjin thick crab bigeye, which comprises the following steps:
[0055] a. The structure of the nursery pond: the appropriate excavation of the nursery pond is rectangular, the area of each pond is 1 mu to 3 mu, the water depth is generally 1.45 meters, the aerated stone is generally one every 28 square meters, and the surrounding slope ratio is 1:1 .
[0056] b. Water intake and disinfection: Use a 150-mesh filter to feed water 1.45 meters at a time. Disinfect the water 15 days before larvae incubation, use 75 kg of bleach powder per mu, measure the chlorine content of the water 10 days after disinfection, and remove residual chlorine with sodium thiosulfate;
[0057] c. Fertilizer and water: After disinfection and removal of residual chlorine in step (2), use compound fertilizer 5 / mu. After the water is dissolved, the whole pond is sprinkled. Generally, the transparency of the water body will reach about 25 cm after five days. If the tr...
Embodiment 3
[0066] A method for cultivating larvae of Tianjin thick crab bigeye, which comprises the following steps:
[0067] a. The structure of the nursery pond: the appropriate excavation of the nursery pond is rectangular, the area of each pond is 1 mu to 3 mu, the water depth is generally 1.6 meters, the aerated stone is generally every 25 square meters, and the slope ratio is 1:1.
[0068] b. Water intake and disinfection: Use a 150-mesh filter to feed 1.6 meters of water at a time. Disinfect the water 15 days before the larvae are cultivated. Use 100 kg of bleach powder per mu. Measure the chlorine content of the water 10 days after disinfection, and remove residual chlorine with sodium thiosulfate.
[0069] c. Fertilizer water: After disinfection and removal of residual chlorine in step (2), use compound fertilizer 6 kg / mu. After the water is dissolved, the whole pond is splashed. Generally, the water transparency will reach about 25 cm after five days. If the transparency is too larg...
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