Suspended aquaculture device capable of moving shellfish for fattening and collecting infant shellfish
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A suspension type and shellfish technology, applied in the field of suspension type aquaculture devices, can solve the problems of gill fungal infection, insufficient supply of bait organisms, lack of oxygen, etc.
Inactive Publication Date: 2011-04-27
吕军仪 +1
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Problems solved by technology
[0005] Aiming at the deficiencies in the prior art, the present invention designs a suspension culture device for fattening and seedling collection that can make shellfish "swim", especially to solve the problem that the bait organisms cannot be guaranteed to be sufficient when shellfish are fixed for fattening and seedling picking. Supply, sludge deposition causing hypoxia and gill mold fungal infection problems
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Embodiment 1
[0013] Embodiment 1 Suspension-type seedling-picking device and the shellfish seedling-picking effect comparison of fixed-type seedling-picking device
[0014] 1. Experimental design
[0015] 1. 50 oyster and mussel fixed culture attachment plates and 50 suspension culture devices were randomly placed in the traditional near river oyster and emerald mussel seedling field in the intertidal zone of the Changsha Bay estuary in eastern Guangdong Province.
[0016] 2. During the high tide every month, 30 devices of the two seedling collection methods were sampled at fixed points, and the number of seedlings attached and the survival rate were recorded, and the phytoplankton biomass, water temperature, and ammonia nitrogen fixed-point data in the seedling collection area were counted. deal with.
[0017] 3. Experimental period: March 1, 2006 to May 30, 2006 and August 1, 2006 to October 30, 2006
[0018] 2. Experimental results
[0019] The fixed seedling picking device is placed...
Embodiment 2
[0026] Comparison of the oyster fattening effect of the suspended device and the fixed device in the pond of embodiment 2
[0027] 1. Experimental design
[0028] 1. Randomly select two shrimp ponds each with an area of 1 hectare (about 15 mu) in Yuedong Farm, Guangdong Province, and use a pile-fixed fattening device and a suspended fattening device to carry out a short-term fattening experiment before commercial oysters go on the market.
[0029] 2. Data processing: Before the experiment, 50 experimental oysters were randomly selected to measure the body weight, shell weight and meat weight; after the experiment, 50 samples were randomly selected to measure the average body weight, shell weight and meat weight; Growth rate, ring price ratio of oyster commodities and total growth rate.
[0030] 2. During the experiment, the biomass of planktonic algae in two shrimp ponds was measured every 10 days, and the water temperature and ammonia nitrogen data were recorded.
[0031]...
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Abstract
The invention discloses a suspended aquaculture device capable of moving shellfish for fattening and collecting infant shellfish. The suspended aquaculture device can be freely enlarged or reduced according to the proportion and comprises a square outer framework suspending on the water surface; cross bars are arranged on the outer frame at a distance of 30-40cm; the crossed parts of every two cross bars are firmly bound; iron hooks are respectively hung at the crossed parts; the periphery of the outer frame is firmly connected by tenons, bolts and steel plates; the cross bars are firmly connected with the periphery of the framework by tenons, bolts and steel plates; four corners or frame sides of the breeding device are supported by the buoyancy of closed circular and square floaters; one corner of the suspended aquaculture device is connected with a nylon rope ring with the diameter being 4-5cm; the nylon rope ring is firmly sleeved and tied in a pile column which is vertically and deeply buried at the bottom of a pond or the sea bed; and the nylon rope ring can freely lift along the height of the water level, so that the fatten shellfish hung on the iron hooks moves following the movement of the device. The suspended aquaculture device for collecting infant shellfish and fattening belongs to an environment-friendly and low-carbon type aquaculture device.
Description
technical field [0001] The invention relates to a suspension culture device that can make shellfish "swim" to fatten and pick seedlings, especially to solve the problem of lack of oxygen and problems caused by the inability to ensure the supply of bait organisms and sludge deposition during fixed fattening and seedling picking of shellfish. Gill mold fungal infection problems occur. Moreover, the production technology of the whole device is easy to master; the production cost is low; only one end of the device is fixed, which avoids the frontal impact of wind and waves, has strong wind and wave resistance, and is suitable for the needs of different aquaculture water bodies. Therefore, the suspended seedling-picking and fattening device is an environmentally friendly and low-carbon aquaculture device. Background technique [0002] The amount of aquaculture in my country has accounted for more than 70% of the world. By 2008, the output of aquatic products in my country had re...
Claims
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Application Information
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