Ecological fish culture and biological water purification integrated breeding system and method
A technology of biological water purification and aquaculture system, which is applied to the integrated aquaculture system of ecological fish farming and biological water purification, a field of aquaculture, which can solve the problems of aggravating eutrophication of water bodies, insufficient feed utilization, and low quality of fish products, etc. problems, to achieve the effect of maintaining ecological balance, reducing breeding costs, and maintaining ecological balance in water areas
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Embodiment 1
[0074] Present embodiment adopts above-mentioned cultivation system and the cultivation method of this system to carry out cultivation, and in the present embodiment, flowing pool 1 is 60 square meters, and the depth of pond water is 1.8 meters, is refitted by idle flowing water fish pond. The set filter screen is trapezoidal, and its area is set to 1 / 2 (2.3+3.3) × 1.8 square meters. It is fixed on the pool wall with a 10 × 6 cm wooden frame around it, and then the filter screen is nailed to the wooden frame with a bead. to fix.
[0075] This embodiment is a productive test. A total of 4 flow pools with the same basic conditions are selected, and the inflow flow rate can be controlled between 0.05-0.08 cubic meters per second. 1#, 2#, and 3# ponds use nylon filter screens of 60 mesh / inch, 120 mesh / inch, and 200 mesh / inch respectively; 4# pond is a control pond without a filter screen, and a no-knot filter with a mesh size of 1.0 cm is used. Polyethylene mesh replaces the stra...
Embodiment 2
[0084] This embodiment is a production test, and the purpose is to detect the effect of the filter screen mixed with feeding fish in running water fish culture. The running pool 1 of the present embodiment is selected as 60 square meters, and the water depth is 1.8 meters, and the nylon filter screen is 200 mesh / inch; other conditions are identical with embodiment 1.
[0085] In the production test of this embodiment, two flow pools with basically the same conditions were selected, and the flow rates were both controlled at 0.05-0.08 cubic meters per second. 30,000 summer flowers of Pengze crucian carp were put into pond 1#, and 30,000 summer flowers of grass carp were put into pond 2#. When the specifications of crucian carp and grass carp reach a total length of more than 2.0 inches, each pool will be put in 14,000 silver carp summer flowers and 6,000 silver carp summer flowers; and hard pellet sinking feed. The above production test is fed by conventional running water fis...
Embodiment 3
[0089] In this example, taking the production test in a freshwater area as an example, a 10-acre pond is upgraded and the water inlet flow is controlled to 0.08-0.12m 3 / s, the water outlet is equipped with a 400 mesh / inch rectangular stainless steel wire filter, which can be taken out for cleaning or replacement at any time. ×8㎡. The mixed culture of silver carp and bighead carp, grass carp, herring and crucian carp is adopted. While feeding feed, the bottom dwelling animal snail is also added to feed the herring freely.
[0090] The feeding situation of fish species in this embodiment: the specification is 1500 silver carp of 8 to 12 / kg; the specification is 3000 silver carp of 3 to 4 / kg; the specification is 10000 grass carp of 6 to 8 / kg; 1,000 herrings with 3-4 / kg; 8,000 crucian carp with 15-18 / kg. The snails were put in after clearing the pond a year ago, and the amount of snails put in was 500 kg. The above fish species are stocked before spring.
[0091] The feeding...
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