The batin fish is also known as freshwater shark, tiger head shark, eight treasure fish and crystal batin fish. Mainly distributed in inland rivers and lakes in Southeast Asia such as Malaysia, Thailand, Laos, Cambodia, Vietnam and other countries, it is one of the famous freshwater cultured high-yielding fish in Southeast Asia with excellent economic properties. Do you know how to raise freshwater shark fry in ponds? 1. Soybean milk cultivation method

Grind soybeans into soybean milk and pour it into the pond as bait for fry and fertilizer. This method is relatively simple, the fertilizer content of the water body is relatively stable, and the cultivated summer croakers have strong physiques, but The consumption of soybeans is relatively large, and the cost is relatively high. Each mu of water surface requires 3 to 4 kilograms of soybean pulp per day, which increases to 5 to 6 kilograms after 5 days. In the future, it can be increased appropriately according to the water quality and fertilizer, so currently it is usually The method of combining soy milk and organic fertilizer is used to cultivate batin fry. Practice has proved that part of the soy milk put into the cultivation tank can be directly eaten and absorbed by the fry, while most of the rest acts as fertilizer and water, promotes the reproduction of plankton, and indirectly provides delicious biological food for the fry. During the operation, attention should be paid to filtering out the bean dregs after grinding the soy milk, and feeding it immediately; when splashing the soy milk, it must be even, small amounts and multiple times, usually 2 to 3 times a day.

2. Organic fertilizer cultivation method uses human and various livestock and poultry excrement as fertilizer for the fry cultivation tank. After fully decomposing and fermenting in advance, the manure is diluted with water and then evenly sprinkled over the entire tank. The amount and interval of fertilization must be flexibly controlled based on the water color, the floating conditions of the fry and the weather. Generally, fertilizer is applied once a day after the fry are placed in the pond, at a rate of 50 to 100 kilograms per mu. The precautions for this cultivation method are that the manure must be fully fermented and decomposed in advance to avoid applying fresh manure directly into the pond. Generally, a large pit is dug beside the pond. The size of the pit depends on the specific situation, and then the fresh manure is poured into the pit. Adding an appropriate amount of lime can ferment the manure and kill some bacteria, parasites and parasite eggs that may be in the manure, preventing or reducing the spread of diseases. The General Chamber of Commerce hopes this will be helpful to everyone.