Breeding catfish feed what catfish culture technique

We all know that the nutritional value of catfish is very rich, and catfish contains a variety of minerals and trace elements, so often eat catfish, it is also very helpful to the human body. In fact, catfish is also a very valuable nutritional product, which can be comparable with shark fin and wild soft-shelled turtle. So now many people have begun to breed catfish, today I will introduce some catfish culture techniques for you.

What do you feed farmed catfish?

1. Catfish are carnivorous fish, and most of the prey are small fish, such as meal strips, crucian carp, goby fish, wheat ear fish, carp, Loach, etc., as well as shrimp and aquatic insects. Mainly to swallow, the main function of teeth is to prevent food escape. Catfish can also eat big green earthworms, beef and mutton, mole crickets, grasshoppers, pottery worms, tree worms, grass worms and mantis, small frogs, toads and so on.

2, catfish commonly known as pond lice, also known as moustache silver carp, slime fish, pond lice fish, raw fish. The same kind of catfish is almost distributed all over the world, most species live in fresh water such as ponds or rivers, but some species live in the ocean. It is common to have no scales on the body, a flat head and a large mouth, and several long whiskers around the mouth, which is characterized by being able to distinguish the taste.

Catfish culture technology

1. Before releasing the fry, the pond should be disinfected. There are two methods. One is the dry pool method, which drains or drains the pond water. After exposure to the sun, the golden pond evenly distributes quicklime, with a dosage of 75g per square meter. On the first day, new water is injected, and the fish fry are placed for 5 days and then replaced with fresh water for 3 days. Then the fry can be released. The second is the method of carrying water, using 220g quicklime per cubic meter of pool water, sprinkling quicklime slurry evenly in the whole pool while it is hot, and starting to fertilize the water quality after the toxicity of quicklime disappears.

2. After the fish pond has been disinfected, the water quality should be fattened about a week before the fry is released. After water injection reaches 0.9, biogas dregs can be used as the basic fertilizer of fish ponds, and about 250g biogas dregs are put into fish ponds per square meter.

3. Fish fry should be harmless, disease-free, healthy and lively for 6 days. Fish specifications should be more than 3 cm, should be consistent as far as possible, so as not to kill each other. In the daily management, disease prevention is particularly important, and fish body disinfection must be done well when fish fry are put in. The method is to dilute 1 kg of salt with 30 kg of water and soak the fry in salt water for 5 minutes before releasing them.

The difference between silver carp and catfish

1. Catfish: catfish are fish of animal kingdom, phylum Chordata, subphylum Vertebrata, Radioptera, catfish, catfish family, catfish genus and catfish species. Silver carp: silver carp belongs to the animal kingdom, phylum Chordata, subphylum Vertebrate, Radioptera, Cyprinidae, Cyprinidae, Silver Carp, Silver Carp, Silver Carp.

2. Catfish: catfish live in the middle and lower layers, belong to nocturnal animals, and are carnivorous fish. most of the prey are small fish, which are mainly swallowed, and the main function of teeth is to prevent food escape.

3. Silver carp: silver carp is a middle and upper layer fish, which is a typical filter-feeding fish. it filters the plankton in the water by the special structure of the gills, feeds on plankton for life, and mainly eats zooplankton in the fry stage. when it is more than 1.5 cm long, it gradually changes to phytoplankton.

Disease prevention of catfish

The main results are as follows: 1. In the process of pond horn fish culture, viral rot is the most harmful. The disease often occurs when the fish fry weigh about 50g after a month of stocking. Blisters appear on the body surface of the diseased fish, the base of the fin is congested and rotten, and in severe cases, a large number of dead fish will appear until the whole army is destroyed.

2. Therefore, sprinkle the whole pool with quicklime regularly, using 15g lime per square meter for 15 days. If the occurrence of this disease, most of the disease can not be controlled, the disease only in the daily management of regular medication, do a good job of prevention.

3. During the feeding period, the common diseases include bubble disease, enteritis, melon disease, water mildew disease, blackbody disease, rotifer disease, third-generation insect disease and so on. In order to prevent and cure fish disease, drugs such as bleach and quicklime are often used to disinfect food.

In the above article, we all know that catfish has very high dietotherapy and medicinal value, and it is not available to other fish. Therefore, in the market demand of Shiqiao, catfish is also in a very big advantage. And catfish is also relatively speaking, the breeding method is also relatively simple.