Culture techniques of Ctenopharyngodon idellus

Aohua fish is a carnivorous fish, also known as mandarin fish, is one of China's four major freshwater fish, delicious meat, is a valuable fish. This kind of fish has high nutritional value and certain medicinal value. it can replenish the five internal organs is a healthy fish, and there are many species of fish. At first, they are all wild fish, but later the number of wild fish decreased, and they also began to be cultured artificially. Up to now, there is also some breeding experience. Today, the article mainly wants to tell you about the specific process and methods of culturing Aohuaci.

1. Cultivate and raise seedlings

After the female fish are fertilized and laid eggs and hatched, the seedlings need to be cultivated carefully for a period of time, so as to ensure the survival rate of stocking. Generally, the seedlings are hatched in the heat preservation incubator where the water can flow, and almost all the seedlings emerge after 5 days. After that, after the yolk disappears, it can be fed for the first time and fed with some fine powder concentrate feed. A little bigger to feed the small fish fry, eat the small fish fry means no worries about survival. More than 10 small fish fry can be fed every day after a week.

2. Preparation

The pond is disinfected with quicklime before stocking, and then disinfected after draining water. Do not bring water for disinfection. The pond bottom sludge with high humus content can not apply base fertilizer, but generally apply some livestock manure to create a good ecological environment and provide microbial bait for fish. Water can be injected one day after disinfection, and the water inlet and outlet should be intercepted with a net.

3. Stocking

The stocking water depth should be about 2.5 meters, and some aquatic plants can be planted in the pond when stocking. Stocking should be stocked with other fish that Aohua fish like to eat, which can be used for its prey, otherwise it may eat each other and be fierce. Stocking ponds, about 1000 fry per mu of ponds, so that the density is sparse and the growth is better.

4. Throw in and feed

Also put in some other fish fry as fodder, about 500 fish first, and then feed a certain number of fish regularly in the later stage, preferably herbivorous fish, so that there is no conflict. No, don't bite. If you hear the sound of chasing in the pond is very loud, it means that the number of feed fish should be fed in time. If nothing happens, it may still be enough to eat. Feed fish should be only 1/3 in size, which is easy to eat.

5. Management

If water is flowing all the year round, it cannot be stagnant. Lack of oxygen in the water, to use 250 milliliters of hydrogen peroxide per mu to increase oxygen, you can also catch and sell some to increase activity space. To prevent rotifers, oblique tube worms and other parasites, spray formaldehyde with water.

The above is about the detailed culture technology of ao flower fish, which is mainly divided into five aspects, but there are still some details to refine the operation. The actual production and breeding should pay attention to proceed from the reality and refer to the breeding experience of others, which is the best breeding method.