Sea cucumber breeding method
A sea cucumber and breeding net technology, which is applied in fish farming, climate change adaptation, animal feed, etc., can solve the problems of high environmental requirements for sea cucumber substrates, low breeding efficiency in mudflat ponds, and low survival rate of sea cucumbers. Achieve the effects of adjustable breeding height, rich bait sources, increased production and income
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[0032] The preparation method of the shrimp shell powder is that the waste shrimp heads, shrimp shells and other materials are dried and then ground into powder.
[0033] The immune enhancer is an active substance obtained by mixing astragalus and rhubarb in a mass ratio of 3:1, leaching with alcohol, extracting by microwave, and then performing distillation; the specific preparation method is as follows: pulverize astragalus and rhubarb according to Mix the mass ratio 3:1, soak in 40%-50% ethanol solution for 4min microwave treatment, power 500W, extract with 50% ethanol for 1h, extract the filtrate by vacuum filtration, evaporate the filtrate to dryness in a water bath at 80°C, put it in It was dried in an oven at 60°C to obtain an active substance extract.
[0034] The components of the above-mentioned bait are specially formulated for the breeding mode of the double-layer hanging net of the present invention. After the materials in the above-mentioned components are ingest...
Embodiment 1
[0037]From April 2, 2013 to November 2, 2013, the facility was used for breeding experiments in Hongdao. The water depth of the experimental sea area is 3.0m, the breeding area is about 10 mu, the spacing between the breeding facilities is 40cm, the weight of the sea cucumber used in the experiment is 10.1±2.6g, and 20 kg of sea cucumber seedlings are cast in each facility. 29~31.6, pH is 8.1~8.3, and the average dissolved oxygen in water is 6.8mg / L. The research results show that the sea cucumbers cultivated in this facility have thick skin and good activity, and are mostly attached to the walls of the cage and the lining net or in the folds of the net. The survival rate of sea cucumbers in this facility is 92%, and the average weight is 127.8g. The survival rate of bottom-seeded sea cucumbers was only 55%, and the average weight was 104.2 g. The yield of sea cucumbers cultivated in this facility was significantly higher than that of bottom-seeded sea cucumbers. A large amoun...
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