Technology of raising yellow eel in artificial cage

Yellow eel is delicious and nutritious, so it is a good food among the precious fish. In recent years, the resources of natural wild ricefield eel have decreased, and the market is in short supply. Therefore, the development of artificial culture of Monopterus Albus has a broad prospect. The cultivation of Monopterus Albus with cage culture has the advantages of low investment and high yield. Net cage layout ponds, reservoirs, lakes, rivers can cage raise rice field eel, require water depth of more than 0.7 meters, easy to enter and drain. It is best to use polyethylene non-nodular mesh to make the cage. Mesh hole size should be 0.6 to 1.3MM, cage up and down and four corners of the straight diameter 0.8CM, cage made of rectangular, cage area of 12 to 20 square meters is appropriate, too large is not easy to operate. The draught depth of the cage is 0.5 meters, and the upper edge of the cage is more than 0.5 meters from the water surface. two。 Choosing and buying seedlings of Monopterus Albus to raise Monopterus Albus, seedling is the key. The seedlings of Monopterus Albus must be cultivated and trained by workers, not with mixed-color eel seedlings or untrained eel seedlings, let alone "extra-large eel" or "Thai extra-large eel". The size of rice field eel seedlings should be 30 to 60 per kilogram. Generally speaking, the stocking density of eel seedlings in cage culture is 1-1.5 kg per square meter. three。 Feeding and management 1 cage preparation and eel seedling stocking 20 days before stocking, soak the cage with 20PPM potassium permanganate for 20 minutes, put water peanuts (revolutionary grass) or hyacinth into the cage to grow, let water plants cover 3/5 of the cage, you can put seeds and seedlings. Eel seedlings should be disinfected during stocking, soaked with drugs, and the water temperature difference should be less than 2 degrees. Common disinfection drugs are: salt: concentration 3-5%, immersion for 8-12 minutes. Eel disease: the concentration is: eel disease 10-15 ml per ton of water, soak for 15-25 minutes. two。 The seedlings of Monopterus Albus were not fed for 1-3 days after they were put into the cage. The feed was fed from the 4th to 7th day, and it was the best to feed at 6pm every afternoon. At this time, the food intake of Monopterus Albus is the highest, and the feed of Monopterus Albus raised in artificial cage is mainly compound feed, and some earthworms, river snails and small miscellaneous fish are fed properly. The feed is directly put into the aquatic plants in the cage to feed the ricefield eel. The formula feed can use Dajiang brand ricefield eel full price material or Yangtze River brand ricefield eel formula feed. Can also be self-made, the formula is: fish meal 21%, cake 19%, energy feed 37%, earthworm powder 12%, mineral 1%, mother 5%, multi-vitamin 2%, adhesive 3%, using artificially cultivated deep yellow spot eel seedlings, feed with this formula feed, the feeding amount is 3-5% of the body weight of Monopterus Albus. four。 To prevent eel disease, raising ricefield eel in cage is mainly to prevent eel disease. After normal feeding of ricefield eel, the water body is disinfected every 10 days. Turn and stand and stop. The bacteria must be exhausted. Eel Shierkang and so on. Common treatment of eel disease; hemorrhagic disease. Sprinkle or soak the body of ricefield eel in the whole pond for 30 minutes, and the dosage is 1-1.5 ml per cubic meter of water. Enteritis; every 100 kg of ricefield eel was fed with 30 grams of garlic every day for 3-5 days. Cannot use national banned drugs: such as chloramphenicol, furazolidone.