Breeding of freshwater lobster

1. Artificially cultivated lobster seedling cultivation ponds with cement tanks of 20~40 square meters and water depth of 0.6~0.8 meters are preferred. You can also choose a pond close to water, good water quality, an area of ​​1 to 3 acres, rectangular, east-west, slope ratio of 1:2, water depth of 0.5 to 1 meter, built into the drainage system and escape prevention facilities. Before stocking shrimp, the cultivation pond (pond) must be completely disinfected, and the new cement pool must be alkalined and then disinfected. Then, 500 kilograms of human and animal manure was applied to each acre cultivation pond to cultivate bait rotifers and cladocera and copepod plankton that were preferred by juvenile shrimps; nets, bamboo tubes, plastic tubes, etc. were set to increase the habitat of young shrimps. Shells and hidden places. The influent water should be sieved and screened to prevent entry of predators.

2. Feeding and cultivating juvenile shrimp The cultivation pool will deliver 10 to 150,000 tails per acre with 0.8cm in size, neat size, robust physique, no disease, injury and strong juvenile shrimp. Laying of young shrimp should be on sunny mornings and rainy days. After juvenile shrimps are stocked, they shall timely feed fertilizers into the cultivation ponds to fertilize the water quality and provide enough bait for the juvenile shrimps. At the same time, it is timely to feed palatability feeds. The first week after stocking, the juvenile shrimps are splashed with soy milk and are fed 3 to 4 times a day. After one week, feed the feed with dynamic characteristics (small Fish, snail meat, cockroach, cocoon, etc.), supplemented with corn, wheat and fresh plant stems and leaves, crush and mix the processed paste, feed it sooner or later. Once, the daily feed amount is 10% to 15% of the shrimp body weight. However, the feeding should be based on the weather, water quality, and the amount of shrimp eaten. In the process of juvenile shrimp rearing, the cultivation pool will change the water every 7-10 days, changing the water every time by 1/3 so as to keep the water oxygen in the pool above 5 mg/L. And it is necessary to splash lime water regularly to improve water quality and increase calcium. Juvenile shrimps are intensively bred for 25 to 30 days. The juveniles are up to 3 cm in size and can be stocked.

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