Sea water net cage hanging culture method for lobster
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A breeding method and net cage technology, which is applied in the field of lobster seawater cage culture, can solve the problems of low efficiency of lobster culture, achieve the effects of preventing lobster diseases, green and safe protein content, and improving survival rate and yield
Inactive Publication Date: 2019-01-29
贺琪
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Problems solved by technology
In recent years, more and more crayfish are cultured artificially, most of which are built in special breeding ponds for breeding, but the efficiency of lobster farming is not high
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Embodiment 1
[0032] Embodiment one, such as figure 1 As shown, according to an embodiment of the present invention, a seawater cage culture method for lobsters, comprising the following steps:
[0033] S101, preparation before breeding: 1) selection of shrimp farming site, water temperature of lobster farming environment is 15-30 degrees Celsius, salinity is 23-34, pH is 8.0-8.6, dissolved oxygen is 6 mg / L, 2) shrimp The construction of pond, 3) aquatic plants will be planted at the bottom of the pond;
[0034] S102, technical measures before releasing seedlings: Thoroughly clear the pond. After thoroughly clearing the pond, use a 40-60 mesh screen to filter the incoming water for 50-60cm, fertilize and cultivate plankton, and fertilize with a ratio of nitrogen and phosphorus of 2:1 and superphosphoric acid. Use less calcium than 1.5kg / mu, first use 90-100kg / mu of fermented and decomposed livestock and poultry manure, after 7-10 days, the transparency of the pond water will reach 30-40cm,...
Embodiment 2
[0041] Embodiment 2. The construction of the shrimp pond can be used as a clear pond with quicklime water for newly-built lobster ponds, and 100 kilograms per mu is used. If the old ponds or lakes are used to raise lobsters, dredging, trimming, and exposure to the sun are required. For 10-15 days, use 50 kg of quicklime per mu to sterilize the dry pond, and at the same time completely remove catfish, loach, black fish, snakes, rats and other predatory wild predators in the pond; cleaning the pond can reduce pollution, thereby reducing shrimp seedlings. The pollution is more conducive to the healthy growth of shrimp seedlings.
Embodiment 3
[0042] Embodiment three, the species of the planted aquatic plants include Hydra verticillium, Elodea, bitter grass, water peanuts, etc. The planted area accounts for 20% to 30% of the cultured area, and the aquatic plants in the net cage account for about 50% of the entire net cage area ; Because aquatic plants are the subsidy and natural bait that the shrimp body can survive and survive, it can also purify the pool water and absorb the lobster feces to treat the water quality and fertility.
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Abstract
The invention discloses a sea water net cage hanging culture method for lobster. The method comprises the following steps: preparation before culture is performed: 1) a lobster culture site is selected, the water temperature of the lobster culture environment is 15-30 DEG C, the salinity is 23-34, the pH is 8.0-8.6, and the dissolved oxygen content is 6 mg / L, 2) a lobster pond is constructed, and3) aquatic grasses are planted at the bottom of the pond; technical measures before seedling releasing are as follows: the pond is thoroughly cleaned, water which is filtered by a 40-60 mesh screen isintroduced to the pond after the pond is thoroughly cleaned, the water depth reaches to be 50-60 cm, plankton is cultivated by fertilization, the fertilization ratio of nitrogen to phosphorus is 2:1,1.5 kg / mu of calcium superphosphate is applied, 90-100 kg / mu of fermented and decomposed livestock and poultry manure is first applied, the transparency of the pond water reaches to be 30-40 cm after7-10 days, and the water quality is brown or green; and the structure and setting of the net cage are as follows: the net cage is prepared from a 20-40 mesh net cloth, the net cage has a length of 10m and a width of 3-5 m, a calcium-plastic board with a width of 15 cm is sewn along the inner side of the upper edge opening of the net cage, the net cage is fixed with bamboo poles and placed at a position which is away from a water inlet of the pond for 2 m, the bottom of the net cage is attached to muds, the bottom layer of the net cage is paved with manure soils with a thickness of 20 cm, andthe water depth of the net cage is kept to be 30-50 cm.
Description
technical field [0001] The invention relates to the technical field of lobster culture, in particular to a seawater net cage culture method for lobsters. Background technique [0002] Crayfish belong to the phylum Arthropoda. Crayfish have the living habit of burrowing, destroying dams, threatening the survival of fry, and causing certain damage to agricultural production and fishery production. Therefore, early people have always eliminated them as harmful organisms. In recent years, crayfish has been sought after because of its delicious meat, and the market prospect is good. However, due to the lack of artificial breeding of crayfish, people catch a large number of wild crayfish, making their natural population less and less. The market is in short supply and the price has risen sharply. In recent years, more and more crayfish are cultured artificially, most of which are built in special breeding ponds for breeding, but the efficiency of lobster farming is not high. [...
Claims
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Application Information
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