Traditional large-scale fish farming

Site: There should be silt at the bottom of the aquaculture pond, and a net should be set at the inlet and outlet. Selection of fry: It is best to choose healthy fry with a body length of about 10 cm and a uniform size. Feeding: Rotifers or fish cut into small pieces can be fed in the fry stage, and aquatic insects and small fish and shrimp can be fed in the mature stage. Water temperature: not less than 22 degrees. Change water: change water once every half a month or so. Disease prevention: feed can be mixed with appropriate drugs to prevent and treat common diseases. The culture method of 1. bamboo shellfish 1 Site and equipment: Generally, large-scale culture of bamboo shellfish requires a relatively large culture pond with an area of about 4 mu. There needs to be some silt at the bottom of the pond, because bamboo shellfish like to move near the mud at the bottom. At the water inlet and outlet, some nets can be set up, which can effectively prevent the bamboo shellfish from escaping. Before putting bamboo shellfish into the pond, the pond must be thoroughly disinfected.

2. Selection of fry: It is best to choose a healthy bamboo shell fish with a body length of about 10 cm. Generally speaking, the quantity can be controlled at around 3500.

3. Feeding: Regular feeding is also a very important task. Bamboo shellfish can be given rotifers or fish cut into small pieces when they are in the fry stage; When the bamboo shell fish reach the adult stage, they can be given all kinds of aquatic insects and fish.

4. Water temperature: Generally speaking, the water temperature above 22 degrees is the best. If it is lower than 22 degrees, the appetite of the bamboo tube fish will be affected. The minimum temperature should not be lower than 18 degrees. If the temperature is lower, the bamboo shellfish will not eat.

5. Change water: It is also important to ensure water quality. Generally speaking, fresh water should be changed every half a month or so. In addition, it has to be disinfected once every month and a half.

6. Disease prevention: Some diseases are common, such as erythroderma, which can be prevented by adding appropriate drugs to feed.

Second, the culture method of bamboo shell fish 1. Parent fish selection: mature and large female and male bamboo shell fish need to be selected, and the ratio can be controlled at 1: 1.

2. Artificial estrus: In order to make reproduction more efficient, they can be injected with oxytocin during artificial estrus, and the effect of one injection of oxytocin is usually about one and a half days. After injection, the male and female bamboo shellfish can be put into the spawning pond.

3. Natural spawning: In the spawning pond, the parent fish can complete the process of spawning and fertilization. Some nests need to be set at the bottom of the pond so that fertilized eggs can attach to them.

4. Artificial incubation: These fertilized eggs can be artificially incubated, so the chances of hatching are relatively high. When hatching, the water temperature is preferably between 27 and 32 degrees. At the same time, we must ensure a certain flow of water.