Basha fish is a kind of fish belonging to Silurus and Silurus, which is an important freshwater aquaculture species in Southeast Asian countries. It is a unique high-quality economic fish in the Mekong River basin. It is transliterated as "Kabasha" in Vietnam, which means "three fatty fish", because during its growth, the fish has accumulated three large fats in its abdominal cavity, accounting for about 58% of its weight.

Second, the morphological characteristics of Basha fish

Basha fish has no scales, and there are two kinds of body colors, one is blue-black in the back and white in the abdomen, the other is pink-white in the back and white in the abdomen. The appearance of Basha fish is similar to that of channel catfish. The fish body is spindle-shaped, the head is flat and wide, the abdomen is narrow, the muscles on both sides of the body are thick, the head is small and round, accounting for about 1/5 of the body length, the mouth is lower, and there are two pairs of whiskers, namely, mandibular whiskers 1 pair, external whiskers 1 pair, and the eye diameter is large.

Third, the life habits of Basha fish

Basha fish are gregarious, often live in the upper layer of water, and are omnivorous. Under natural conditions, they eat small fish, shrimp, snails and mussels, duckweed and aquatic plants on the surface, and artificial compound feed can be eaten under artificial culture environment. The intestine of Basha fish is shorter, which is1.2 ~1.4 times of the total length. Basha fish is resistant to hypoxia and has low requirements for the quality of aquaculture water.

The optimum water temperature for the growth of Basha fish is 22 ~ 32℃. When it is lower than 20℃, its growth rate will slow down with the decrease of water temperature. When the water temperature is lower than 13℃, it will be frostbitten until death. In the Mekong River basin, the fry can grow to 0.8 ~ 1 .0 kg in one year, to1.5 ~ 2.0 kg in the next year, to more than 3 kg after three years, and the largest individual can grow to 20 kg.