Bearded catfish life adaptation, which fish polyculture of leatherbearded catfish the difference be

Both burbot catfish and bearded catfish belong to the catfish family, but there are some differences in some aspects.

1.Origin: The burbot catfish is a native Chinese catfish species, while the bearded catfish is a species introduced from Egypt. Defeated stupid reed.

2.Body size and appearance: The body size of the burbot catfish is relatively small, generally no more than 10 catties, while the bearded catfish is larger, and the largest individual can reach more than 2 kg. In addition, bearded catfish have a wider head and a larger mouth than burbot catfish.

3.Meat quality and taste: The meat of the burpangasi is relatively tender and has a better taste than the stood, while the meat of the bearded catfish is relatively coarse.

4.Feeding habits: Berg catfish is an omnivorous fish, mainly eating aquatic insects, small fish, plankton and putre, etc., while bearded catfish is a carnivorous fish, mainly preying on small fish, shrimp, aquatic insects, etc.

5.Growth speed and longevity: Bearded catfish have a relatively fast growth rate and a longer lifespan, whereas burbot catfish has a relatively slow growth rate and a shorter lifespan.

6.Adaptation to the environment: bearded catfish has strong adaptability to the environment and can survive in harsh environments, while burbot catfish has relatively weak adaptability to the environment.

When it comes to choosing which catfish to eat, it can be decided based on personal tastes and preferences. However, it should be noted that since bearded catfish may contain more harmful substances such as heavy metals, it is recommended to pay attention to controlling the intake when eating.

The color and number of beards are different.

1. Color: burbot catfish is yellow or. Gray, with spots on the body, and bearded catfish.

It's black. 2. The number of beard limbs: 4 beards for burbot catfish, and 6 beards for bearded catfish.

Catfish is also known as bearded fish, bearded silver carp, and pond fish, and there is no difference between the two.

Appearance characteristics: catfish head is flat and broad, posterior side flattened, body surface smooth and scaleless, body color is gray-brown or black-brown, abdomen is white, dorsal and anal fins are long, pectoral fin short round, with hard spines, tail fin is rounded and fan-shaped.

Life habits: catfish is a demersal fish, diurnal and nocturnal, suitable for living water temperature of 20-25, strong resistance to low oxygen, adult fish mainly feed on small fish and shrimp, aquatic insects, benthic animals, animal carcasses, and organic detritus.

1. The difference between catfish and bearded fish

Catfish is also known as bearded fish, bearded silver carp, pond catfish, bearded catfish, and the two are the same kind of fish.

Second, the appearance characteristics of catfish

The catfish has a long body, a flat and wide head, a flat posterior side, a smooth and scaleless body surface, and a distinct and straight lateral line. Suboral position, small eyes. The dorsal and anal fins extend to the base of the caudal fin, with the dorsal fin being two-thirds of the body length.

The pectoral fin is short and rounded, with serrated hard spines, which can be used for crawling on the ground. The caudal fin is fan-shaped. The body color is grayish-brown or black-brown, and the abdomen is white.

3. Catfish living habits

1. Catfish is a demersal fish, which gathers at the bottom of the pond, cave or in the shade during the day, and is active frequently at night, mainly relying on the sense of smell and 2 pairs of tentacles to hunt.

2. Catfish is a tropical fish, suitable for living in waters with a water temperature of about 20-25. When the water temperature drops to about 12, the catfish stops feeding. When the water temperature drops to around 8-10, the catfish gets frostbitten.

When the water temperature drops to 7 and below, the catfish freezes to death.

3. Catfish has dendritic (coral-like) supragill respiratory auxiliary organs and ** respiratory function, which can directly use oxygen in the air and has a strong ability to tolerate hypoxia.

4. When catfish are in the juvenile stage, they mainly feed on rotifers, daphnia, copepods, copepods, and organic detritus. In the adult stage, it feeds mainly on worms, small fish, small shrimp, aquatic insects, benthic animals, animal carcasses, organic detritus, and young plant stems and leaves.

Chemicals can be used appropriately, and then to kill pests and diseases, you can use insect powder. Clean up the garbage regularly and don't let bacteria grow.

The fry must be disinfected when they are put in. The commonly used table salt is 1:30 with water, that is, 1 kg of salt is cut off with 30 kg of water, and the fry are soaked for 20 minutes before going to the pond.

When the fry go down the pond, the transported fry will have a "cramp" symptom due to the large difference in the temperature of the pond water. Before the fry enter the pond, the water from the pond must be slowly washed into the bucket where the fry are transported with a Biyan bucket to allow the water temperature to slowly equilibrate, and then the fry are placed in the pond.

When breeding, we should pay attention to the water area of aquaculture, pay attention to the environment of aquaculture, pay attention to the adjustment of the environment, and pay attention to the health of water sources.

Want to prevent bearded catfish breeding diseases. First of all, we must know what ways his sick potato trouble is caused. Parasites are the causes of disease.

Three generations of infection. Water mold infection. Bacterial infections.

For such different diseases, it is necessary to use targeted methods to prevent hand defeat. Such as a mask.

<> leatherbearded catfish can be polycultured with grass, silver carp, bighead carp, carp, tilapia and other fish, but not with other carnivorous fish. The size of the polyculture fish must be larger than that of the leatherbeard catfish, and it can reach the commercial size in the current year, and can be caught and marketed in the winter with the leatherbeard catfish.

There are several modes of pond polyculture.

There are two main types. One is dominated by leather-bearded catfish (90%), and other fish account for l0%. This form of polyculture requires adequate feed, abundant water and large individual size of other fish.

The polyculture density is 3-6 cm long leatherbeard catfish fingerlings are stocked with 2000-4000 per mu, and the silver carp can be polycultured with 100-200 per mu. The other form is dominated by other species. That is, in other adult fish breeding ponds, the size of the 15-20 cm long leatherbeard catfish fingerlings, the matching amount per mu is 100-150.

In the process of feeding, if other fish are the mainstay, the leatherbearded catfish can no longer be fed separately, and the existing bait that can be used in the pond is mainly used; If leatherbeard catfish is the main species, the other fish raised are no longer fed separately.