Classification of catfish
Catfish are divided into: local catfish, Egyptian beard catfish, big mouth catfish, river catfish, ditch catfish, China catfish, head catfish, golden catfish, tiger catfish, red-tailed catfish, Mekong giant catfish and electric catfish.
What does catfish eat?
1, catfish:
Live in seclusion in water plants or caves during the day, go out for food at dusk and night, and feed on small fish and shrimp.
2. Egyptian bearded catfish:
It is an omnivorous fish, which mainly feeds on animals. Gluttony means eating both plant feed and animal feed. In natural waters, they mainly feed on small fish, shrimp, aquatic insects, earthworms and benthos. Also eat silkworm chrysalis, fly maggots, mussel meat and artificial compound feed, such as wheat bran, flour, bean cake and so on.
3, big mouth catfish:
Catfish is a carnivorous fish. Usually, shrimps in eat small fish also eat animal viscera, such as pig lung, ox lung and pig liver.
4. River catfish:
A fierce carnivorous fish, usually eat small fish, shrimp, earthworm, etc. , also eat silkworm chrysalis, bean cake, vegetable cake, wheat, corn and other granular feed.
5, ditch catfish:
Silurus meridionalis is a large freshwater fish of Silurus meridionalis, which is native to the Mississippi River in the United States. The largest individual is over 70 kilograms. Introduced to China in the mid-1980s, it is a carnivorous fish. Its main food is small fish and aquatic insects.
6. China catfish:
China catfish, commonly known as yellow catfish, is mainly produced in rivers in the Yangtze River basin. Usually, eat small fish shrimps, such as tilapia and crucian carp, also eat the internal organs of animals, such as chicken lungs, chicken intestines and pig liver.
7, Huaitou catfish:
Catfish is a carnivorous fish, and often eats aquatic insects, earthworm, tadpole, frog, loach, carp and crucian carp. Its food is mainly fish, and it can prey on fish equivalent to 2/3 of its own body length. Also eat chicken intestines, pig lungs and other livestock and poultry processing scraps, do not like to eat plant feed.
8. Silurus glans:
The giant salamander's glans is long and scaleless, and the wide and flat fish head has an amazing mouth. The fish head is covered with rows of teeth as thin as sandpaper, with hundreds of them. He has a rough personality and mainly eats fish smaller than himself.
9, golden catfish:
Silurus meridionalis is an excellent mutant bred by hybridization of Silurus meridionalis, which belongs to tropical fish and has a wide range of feeding habits. It mainly eats animal bait and plant bait. In natural waters, there are eat small fish, shrimp, maggots, snails and aquatic insects, benthos and decaying livestock and poultry, as well as various bean cakes, flour and bran.
10, tiger catfish:
Tiger catfish belong to large catfish, and they eat a lot. Their main food is small miscellaneous fish, water worms and meat pieces.
1 1, red-tailed catfish:
Red-tailed catfish is beautiful in appearance, slender in body, wide and flat, with orange tail fin, fierce in temperament and large in appetite. It likes to eat live food, meat and other animal bait, especially small fish.
12, Mekong giant catfish:
Giant catfish in Mekong River live in fresh water or brackish water all their lives, with an average life span of 30 years, generally reaching the size of 3 meters and weighing up to 300 kilograms. Usually, they are mainly herbivores.
13, electric catfish:
Electric catfish originated from Congo River in Africa. It is fierce by nature, afraid of light and active at night. It is generally 50 to 60 centimeters long, with a cylindrical body, small eyes and three pairs of beards on its mouth. Its body is pink or grayish brown, and its surface is often covered with black spots or patches. The naked body has no scales and dorsal fins, and the specialized muscles have the ability to generate electricity. They are violent, gluttonous and carnivorous, feeding on fish, crustaceans and insects.
Catfish has low requirements for domestic water quality and is resistant to hypoxia. The meat quality is not very good and the market price is cheap. However, it is easy to breed and grows fast, and many people breed it. So what fish, food and food do catfish mainly eat when they grow up? According to Li Xiaofei, a fish expert, catfish is a carnivorous fish, and its prey is mostly small fish, such as rice strips, crucian carp, goby fish, wheat ear fish, carp and loach. It also eats shrimp and aquatic insects. Mainly swallowing, the role of teeth is mainly to prevent food from escaping.
Catfish mainly live in rivers, lakes, reservoirs and potholes, mostly in coastal areas, hiding in grass, rocks or deep water during the day and foraging frequently at night. Living in deep water or mud for the winter after autumn, the degree of food intake is also weakened.
Catfish is a kind of Nocturnal Animals, which hides quietly in the pit at the bottom of the river or under the roots during the day. Large species with a big appetite, such as the Danube catfish, attack small waterfowl or mice and fierce fish at the bottom. Afraid of light, I like to live in crevices, deep pits, earth caves or caves at the bottom of tree roots, and slow flowing water near rivers.
There is a catfish with a big mouth on the market, which is similar in appearance to catfish and has four whiskers, but its mouth is particularly large, and its individual is much larger than catfish. It can be cultivated artificially and has a fast growth rate. The fry propagated in that year can grow to 500-750g in that year,1500-2000mg in the second year and 3000-4000mg in the third year. Most of the catfish sold in the market are this kind of catfish, the meat is relatively ordinary and the price is cheap.
There is also a kind of leather-bearded catfish on the market, also known as Egyptian bearded catfish and Egyptian pond fish, which was introduced from Egypt. Animal kingdom-Chordata-Chordata subfamily-Kiwifruit-Siluriformes-Siluridae-Siluridae-Siluridae. Eight whiskers, black all over, huge individual. Most of them are cultivated artificially, and the growth rate is very fast, which can weigh up to 2 kilograms a year, and the largest individual can reach more than 10 kilograms.