The lobster's adaptability to the environment and its resistance to low oxygen are very strong. It is even possible to directly use the oxygen in the air, but the lobster's clam shell and growth rate will be influenced by prolonged periods of low oxygen, excessive water quality or deterioration. Therefore, water quality and daily management are important reasons for raising shrimp production. The following focuses on the water quality and daily management of lobster. First, water quality management 1. Regulate water quality: keep the dissolved oxygen in the pond above 5mg/L, the pH value is 7.5-8.5, the transparency is about 30-40cm, change the water every 15-20 days, change the water every time 1/2, every 15-20 Sprinkle lime water once a day, about 10 kilograms per acre. Disinfect water bodies on the one hand to remove attachments on the body surface of crayfish to accelerate the decomposition of organic matter in water bodies and promote fertilizer and water. On the other hand, increase calcium content in water to facilitate The crawfish absorbs and prepares for crayfish pods. 2, adjust the water level: Pond culture lobster depth is generally maintained at about 1 meter, the high temperature season and lobster winter water level can be appropriately deeper. Throughout the breeding period, the water level must remain relatively stable to prevent the growth of lobsters. Second, daily management 1. Adhere to the patrol inspection: Every morning and evening patrol once, check shrimp feeding, activities, water quality, whether the pond is leaking, etc., remove the moss from the pond in time; always check the inlet and outlet filters to prevent damage due to the filter And let lobster escape or wild fish and other harmful organisms enter; pay attention to whether there are predator organisms in the pool, such as water mice, water snakes, water birds, frogs and fish, if any, should be promptly removed. 2. Observe the change of water quality: The water quality of the strict waterproofing is polluted by industry and agriculture; when the water has low dissolved oxygen, water quality is aged, or when the weather is hot, continuously rainy or other bad weather, the feeding amount should be reduced or the feeding should be stopped; if the lobster is found unresponsive, When a swimmer gathers on the shore, floats his head and climbs to the shore, he must promptly add water or aerators; often add new water to keep the pool water clean and sanitary; regular use of quicklime to disinfect shrimp ponds. 3, do a good job of anti-escape measures: breeding lobster ponds, use plastic film or calcium plastic plate and other materials, built a 50cm high anti-escape wall. Especially in the flood season and the typhoon season, we must do a good job of flood control work to prevent winds, rain, and floods from flooding fields or flooding to trigger escape. 4. Strengthen oyster shell management: During oyster shell, it should promote lobster uniform oyster shell by means of feeding, changing water and other measures. When a large number of lobsters are shelled, feeding should be reduced and human interference should be reduced. All operations should be carefully and carefully, create a quiet and good environment, and promote smooth lobster shelling. After a large number of lobster clam shells, it is necessary to timely feed high-quality food to prevent mutual killing due to lack of food. At the same time, planting 10-15% of aquatic plants and concealed material in the shallow side of the pool to create a habitat for lobsters and shelling can also reduce mutual killing. 5, to prevent lobster hole: Lobster has a hole in the habit, the hole is usually less than one meter deep, the destruction of Tian Hao, which makes many farmers headache, you can take the following measures: (1) laying a layer on the slope of the pool Meticulous plastic mesh cloth protects both slopes and holes; (2) Plants more aquatic plants in ponds. Do not concentrate too much. Sporadic distribution. Set a certain number of meshes, or set bamboo tubes, plastic tubes, etc. Artificial caves increase the lobster's habitat for clam shell hiding places to reduce lobster holes.
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Water quality and daily management of pond culture lobster