Shrimp pool cultivation techniques of sea cucumber

Tichopus Japonicgs Elenka is not only a nutritious tonic, but also has a very good medicinal value. In recent years, the shrimp farming industry has been plagued by diseases. In order not to abandon shrimp ponds, and to actively develop new varieties of shrimp ponds to increase the benefits, the author has conducted many years of research and exploration on the use of shrimp pond cultured sea cucumbers. The technical points are briefly described as follows: 1. Conditions for stimulating sea cucumber apostichopus japonicus 1. Prevent freshwater (mountain flood) from entering the shrimp pond in large numbers and avoiding the discharge of oil and industrial wastewater. 2. Depth of water: The natural tide of 1m ~ 3m or more can also be used to pump water to maintain the water level. 3, area: a few acres, tens of acres, on the 100 acres can be. 4. Substrate: Hard sandy, sandy, soft sand or silt. Second, Shrimp Pool The artificial sea cucumber reef is used to construct the artificial sea cucumber reef. The purpose is to provide a sheltered place for the sea cucumber to crawl, inhabit, feed and sleep. The materials used as sea cucumber reefs include: stones, cement blocks, plates, tubes, hollow bricks, bamboo cages, bundles of branches, used tires, etc. The method of placement: the winter pool water is dried and the frozen materials are transported to various places in the pool. Stones can be placed in strips, strip width 1m, height 0.5m, strip length is not limited, strip and strip spacing 2m ~ 3m; can also be placed in a heap, diameter 1m ~ 2m, height 0.5m, heap With a spacing of 2m to 3m, the stones should have as many gaps as possible for sea cucumbers to inhabit. Tiles, cement boards, etc. are inserted into the sediment at the bottom, and the upper ends are aligned to form a “small room”; hollow bricks, branch bundles, used tires, and cement pipes should be evenly distributed at the bottom of the pool. For instance, shrimp ponds are difficult to transport materials and are transported to various places by ship to drain the pool water for manual finishing. Third, the seedlings are transported using wet and dry methods for transportation. 1. Wet method: Put the seedlings in a canvas bucket or other container, add sea water, and inflate with an air pump; or take a seedling and put it in a plastic bag, add sea water, fill the bag with oxygen, and transport it. 2. Dry method: Put the seedlings in plastic or other boxes. Lay the kelp grass and absorbent cotton at the bottom of the tank. Spread the gauze soaked in seawater. The seedlings are evenly laid. Cover the gauze. When loading the boxes, one by one. Get up, cover it with a rag, and take it away. 4. Seedling stocking 1. Direct injection method: The seedlings will be directly placed on artificial reefs at a certain density. 2, net bag placement method: 1cm or so young ginseng attachment and activity is very weak, such as directly placed in the pool will inevitably cause a lot of death, can be installed in 20 mesh bag seedlings, each bag of 100 to 200, net Put small stones into the bag to prevent it from floating and moving and place it on an artificial sea cucumber reef. The net bag is open so that the seedlings slowly climb out of the net bag. 3, seedlings placement density: According to shrimp pond conditions, pool water depth, seed size to determine the individual. The general situation is 3000 heads/Mu to 5000 heads/Mu (1cm seedlings). 4, seedlings to put specifications: body length 1cm or more. 5. Seedlings feeding time: September and late September, shrimp pond water temperature 21 °C ~ 24 °C; or next April, seedlings 3cm ~ 5cm (refers to the artificial seedlings), shrimp pond water temperature 8 °C ~ 10 °C . Fifth, to develop management 1, change the water: The water quality should be constantly changing the water, changing the water rate of more than 10% per day, with the increase in individuals, changing the amount of water. Changing water not only improves water quality, but also brings a large amount of benthic diatoms and organic debris, which brings rich food to sea cucumbers. 2, feeding: stocking density is too large, depending on the natural food Stichopus japonicus growth rate is slow, can be considered fed artificial compound feed, feeding amount should be based on its growth and feeding conditions may be. 3, the rainy season should pay attention to avoid large amounts of fresh water into the pool, causing the pool water salinity is low, causing the death of sea cucumber, to prevent oil and toxic seawater into the pool. 5. Sea cucumber can be mixed with shrimp and increase income. Six, harvest sea cucumber Shrimp in shrimp ponds after 2 years to 3 years of breeding, individual general fresh weight up to 150g ~ 250g, according to market conditions can be harvested for sale. Harvest method: First, the pool water will be drained, and the artificial will be taken out; second, diving and catching.

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