Tangren
brief introduction
Silurus meridionalis (Silurus meridionalis) Clarias fuscus local names: pond lice fish, pond horn fish and loach fish. Morphological characteristics: the body is elongated and the back is flat. The head is wide and flat. Lower mouth. Small eyes. Must be 4 pairs. The body is scaleless, the lateral line is obvious and relatively straight. The dorsal fin is very long, accounting for about 2/3 of the body length, and the gluteal fin is also very long, with no hard spines and not connected with the caudal fin. The pectoral fin has saw-like spines. The caudal fin is round. Brown-black body, shallow abdomen.
Pond fish, a tropical and subtropical fish, is widely distributed in southern China. It is not only a nutritious consumer product, but also a tonic with medicinal value. It can not only sell well in China, but also earn foreign exchange through export. Therefore, it has great market potential and is an effective breeding object for farmers (fishermen) to get rich. Egyptian pond fish belong to Silurus, Silurus and Silurus, which belong to the same species as local Silurus, Silurus Thailand and Silurus Thailand. The pond catfish, whose scientific name is Silurus beardus, belongs to Cypriniformes and Silurus beardus in classification. The body length is generally more than 20 cm, and the weight150 ~ 250 grams, the maximum is about 500 grams. Generally speaking, the body length of pond fish is more than 20 cm, and its weight is1.5 ~ 2.5 kg. The pond fish is a wild fish, which lives in the lower reaches of rivers, fields, pits and ditches. Sexually fond of crowds, gluttonous, mainly eating animal bait, such as insects, small miscellaneous fish, shrimp, shellfish, etc., but also like to eat blood (such as pig blood, blood from slaughtered pigs flows into the pond, and the pond will grow very big), feces and meat (including people), which grow rapidly. Some people used to eat pond.
More than 10 fingerlings weighing 10 were caught in the septic tank. Most of them move and feed at night, and dive into the water or caves during the day. After artificial feeding, you can also eat during the day and eat some plant concentrate. The pond fish has strong adaptability, can grow in a small water body and low dissolved oxygen environment, has fewer diseases, wide feed sources, is easy to breed, and has low cost, so it is suitable for farming and popularization in small water surface in farm courtyards.
In addition, there is a variety with a smaller body length, mud pond mud, which is lighter in color (not catfish, but catfish is near green), generally below 1 kg, and tastes more delicious; The big one is called Tangren Thailand, which is more adaptable and can grow very big and dark in color. Most of the giant Tangren in the reservoir are released by someone with Tangren Thailand. Because there are no natural enemies in the water, they can usually grow very big. On the afternoon of July 20 1 11,villagers in Qitou Village, Shawan Town, Panyu District, Guangzhou, caught four giant pond lice about one meter long in the pond in front of the village ancestral hall. The fish head is almost as big as a human head, and even the beard on the mouth is as thick as chopsticks. It is actually more than one meter long and weighs almost 40~50 kg.