In recent years, the lobster market has shown great potential, and the cultivation of lobsters in controlled environments offers significant economic benefits. The author simulated a natural lobster habitat by utilizing abandoned low-lying fields, implementing artificial feeding methods. This approach yielded over 250 kg per 667 square meters (1 mu), with net profits exceeding 1,300 yuan. With proper management, these profits can be further increased. Below are the summarized techniques for successful lobster farming:
First, pond preparation is crucial. A low-lying area near the embankment was selected, with sandy loam soil covering about 0.5 hectares. The water flow was stable, and after reinforcing the pond’s height, it could hold up to 1.2 meters of water. Inlet and outlet systems were separated to ensure better control.
Before stocking, wild weeds were cleared, and the ponds were left dry for two weeks. Then, 150 kg of lime per 667 square meters was applied to eliminate unwanted fish and pathogens. Afterward, beneficial plants like water peanuts, Elodea, and goldfish were manually introduced. These plants not only support the ecosystem but also provide an ideal environment for lobsters.
Lobsters are known for their strong escape abilities, similar to crabs. To prevent them from escaping, calcium-laminated plastic boards were used as barriers. A plastic strip covered the middle of the board, and tight mesh was installed at the water inlet and outlet. Regular checks of the anti-escape facilities were essential.
Before introducing the seedlings, manure fertilizer was applied to enrich the pond with nutrients. The initial water depth was kept around 50 cm, gradually increasing as the lobsters grew. This ensured optimal conditions for early development.
Stocking took place in March each year. Fresh shrimp seedlings were purchased from local markets. On March 5, 10 kg of 2.5 cm shrimp were stocked, followed by 15 kg of 3 cm shrimp on March 10, 222 kg of 3.5 cm shrimp on March 15, and 365 kg of shrimp on March 18. Before stocking, dead or soft-shelled seedlings were treated with a 40 g/l saline solution for 10 minutes to eliminate bacteria and parasites.
Feeding began in mid-March, starting with fresh bean dregs and rice bran. From May to September, the diet included fresh fish, pumpkins, and green vegetables. The amount fed was 5–10% of the lobster’s body weight, depending on their activity level. Fish was chopped into small pieces, and pumpkins were cut into strips to make them easier to consume. Leftover food was removed promptly to maintain water quality.
Water quality was critical. It should be “fat, live, tender, and cool.†In the early stages, the water was yellowish-green or dark brown, with a transparency of about 30 cm. If the transparency decreased, more water was added, and a partial change was done every half month. During summer, the transparency was maintained around 40 cm, with the water level at 1.2 meters, 50% coverage of aquatic plants, and a pH between 7.5 and 8.
Disease prevention focused on regular water changes. Lime was applied twice during the breeding cycle, and garlic was fed six times in summer. No major diseases were observed.
Daily patrols were conducted to monitor feeding, movement, and growth. Special attention was given to the water outlets and escape prevention structures. Lobsters have strong burrowing and climbing abilities, so external patrols were necessary.
Finally, harvesting began in late May. The lobsters reached sizes of 20–25 kg per kilogram. Small individuals were caught using cages, and shrimp were collected every 4–8 hours to avoid overcrowding and damage to the equipment. A total of 1,830 kg was harvested, sold at an average price of 16 yuan/kg, generating a revenue of 29.28 million yuan. Total costs were 19.53 million yuan, resulting in a profit of 9.75 million yuan.
Lobsters are highly adaptable in the wild, but under artificial high-density conditions, they become more sensitive. Three key points must be emphasized: (1) Regular pond patrols due to their strong burrowing and climbing abilities; (2) Monitoring growth and adjusting feeding based on size; (3) Harvesting both large and small lobsters to improve efficiency.
M Profile,M Profile Pipe Fitting Coupling,Pipe Fitting Coupling,Stainless Steel Press Fitting Coupling
Wenzhou Gaoya Light Industry Machinery Co.,ltd. , https://www.hongyafitting.com