High quality fish species-Pelteobagrus fulvidraco
Pelteobagrus fulvidraco (Pelteobagrus fulvidraco), also known as Pelteobagrus fulvidraco, Gasyazi, Ansi fish, yellow on the back, yellow on the side and intermittent black patches, naked, scaleless and long, are distributed in the natural waters of most parts of China.
Pelteobagrus fulvidraco is a warm-water bottom fish, which likes to inhabit still water or slow-flow water, and its survival temperature is 0 ℃-38 ℃. It has strong adaptability and great potential for culture, so it can be popularized and cultured in most inland waters of China.
Pelteobagrus fulvidraco has delicate meat and delicious taste, which not only has nourishing effect, but also has certain medicinal value. It is favored by consumers and has always been regarded as high-grade fish. Its adult fish is about 250 grams, which is very suitable for the consumption of a family of three in our country. At the same time, Pelteobagrus fulvidraco has great market potential in Japan, South Korea, Southeast Asia and other countries.
There are three main ways of commercial Pelteobagrus fulvidraco culture:
1. The main culture of Pelteobagrus fulvidraco is to feed fresh small fish and shrimp. The pond is suitable for 2mura 5 mu, with an average water depth of 18 meters. The transparency of pond water should be controlled at 20mur30 cm. Generally, wild seedlings in nature are purchased and released, with specifications of more than 15 grams per tail. If they are artificially propagated seedlings, the specifications are generally 5 color 8 cm. Then match some silver carp, bighead carp, grass, crucian carp and so on. The suitable stocking density is 500 tails / mu. The harvest of Pelteobagrus fulvidraco per mu is about 50ml / mu.
2. Pelteobagrus fulvidraco is mainly raised by feeding sea ice fresh fish and freshwater fish and shrimps, and the requirements for pond and stocking density are similar to those of feeding fresh small fish and shrimps. Set a feeding point of about 5 square meters under the pond, control the transparency of the pond water at 20ml / 30cm, and ensure that the dissolved oxygen content of the pond water is more than 3mg / L. The harvest can be 50Fr 400 kg yellow catfish per mu.
3. Mixed culture of Pelteobagrus fulvidraco and pond fish. the stocking specification is more than 10 cm, with 300 fish per mu, and the yield of Pelteobagrus fulvidraco per mu can reach 50 Mu and 150 kg.
Rich experience has been accumulated in artificial breeding of Pelteobagrus fulvidraco in Indian catfish breeding farm in Honghu City, Hubei Province, and now it has the ability to produce Pelteobagrus fulvidraco seedlings in large quantities.
- Prev
Artificial rearing of kissing fish
Kissing fish do not have a fixed breeding season under captive conditions, and it is not difficult to breed. It is better to feed in pairs and feed in large quantities in order to facilitate reproduction. It is difficult to distinguish between male and female, and it is almost impossible for the larvae to distinguish between male and female. Adult males generally have wide and long buttocks and slender bodies, while females have narrow anal fins, broad and thick bodies and slightly bulging abdomen. When the female is sexually mature, the abdomen is swollen because it is filled with eggs, which is very obvious when looking down from the top of the fish tank. Kissing fish are oviparous, fertilized in vitro, general
- Next
Pathogenic effect of feed pollution on fish
At present, due to the phenomenon that the content of bacteria in some feed products seriously exceeds the standard, the phenomenon of fish death occurs from time to time after fish ingest contaminated feed. According to the symptoms of fish disease can be divided into two types: acute type (fulminant) and chronic type. 1. Acute type (fulminant type): after eating contaminated feed, most fish get sick for 3 ~ 5 days, and as little as 1 ~ 2 days, the disease occurs, and the seriously ill fish have died, and the amount of dead fish is gradually increasing, but it does not affect food intake. Most fish can eat normally. This kind of position
Related
- On the eggshell is a badge full of pride. British Poultry Egg Market and Consumer observation
- British study: 72% of Britons are willing to buy native eggs raised by insects
- Guidelines for friendly egg production revised the increase of space in chicken sheds can not be forced to change feathers and lay eggs.
- Risk of delay in customs clearance Australia suspends lobster exports to China
- Pig semen-the Vector of virus Transmission (4)
- Pig semen-the Vector of virus Transmission (3)
- Five common causes of difficult control of classical swine fever in clinic and their countermeasures
- Foot-and-mouth disease is the most effective way to prevent it!
- PED is the number one killer of piglets and has to be guarded against in autumn and winter.
- What is "yellow fat pig"? Have you ever heard the pig collector talk about "yellow fat pig"?