1, pond culture: Generally, a cement pond or a concrete pond is selected to raise loach, with a depth of 70-100 cm and a water depth of 50-60 cm. The bottom of the pond is paved with fat mud with a thickness of15-20 cm, and the area of the pond can be large or small, preferably 2-3 mu. The pond should be convenient for irrigation and drainage, and the inlet and outlet should be protected by barbed wire. Before stocking, the pond should be cleaned and disinfected, and the method and dosage are the same as those in the fry pond.
2. Polyculture in ponds means polyculture with other fish. Such as mixed culture with silver carp, bighead carp, carp, grass carp and bream. This kind of culture is the same as pond culture in terms of pond selection, pond cleaning, disinfection and stocking.
The advantage of polyculture is that it is not necessary to feed more bait to loach, but only to feed other fish. The food source of loach is the bait that fish can't eat and the feces that are discharged. Therefore, this farming method has high benefit and great water utilization value, which is worth popularizing.
3. Paddy field cultivation There is a vast rice area in southern China. Using paddy field to raise loach can not only save water surface, but also obtain food, with remarkable economic benefits, which is a good breeding model for efficient agriculture.
3. 1, rice field selection. The paddy field where loach is cultured is better with weak acidity, less sediment, good water retention and no overflow when it rains. Ridges should be built around the rice fields. Two nets should be set at the inlet and outlet to prevent loaches from escaping.
3.2, stocking and management. Transplanting live seedlings in early rice or middle rice, and then putting the seedlings. Generally, 40,000-50,000 tails are stocked per mu. Before releasing loaches, organic fertilizers should also be applied topdressing to cultivate zooplankton in the water.
3.3, raising loach rice fields should try to apply less pesticides or no pesticides. Even if it needs to be used in case, the medicine should be administered in batches, with the nozzle facing upwards, and the liquid medicine should not be sprayed on the water surface. In addition, don't use herbicides. When planting double-cropping late rice, it is best to adopt no-tillage method to avoid mechanical damage to loach.
4. Pond culture.
This kind of breeding method is to raise loach in small fat water pits in front of and behind the house. The pit area can be large or small, ranging from a dozen square meters to forty or fifty square meters. Generally, conventional fish will die of hypoxia due to too much organic matter and insufficient dissolved oxygen in this pit. Misgurnus anguillicaudatus grows well in this pit because of its special respiratory organs.
Knife loach fish, slender body, slightly flat at the front end, flat and thin after the anus. The head is long and pointed. The kiss is a little longer, but not as long as the back of the eye. The kiss tip protrudes forward into a kiss process, and its length is about equal to the eye diameter. The front nostril is tubular and located on both sides of the kiss; The posterior nostril is round, near the anterior margin.
The eye is located above the side of the head, the surface is covered with thin skin, and there is an inverted thorn in front of the eye, which is buried in the skin. The mouth is lower, the mouth is cracked into a triangle, and the mouth angle reaches the front edge of the eye or slightly exceeds it. The upper and lower jaws have villous teeth, which are arranged in bands. The pectoral fin is small and round, without ventral fin, and the dorsal fin and anal fin are connected with the caudal fin respectively. There are 1 row of independent hard spines in front of dorsal fin, about 3 1-33; There are 3 spines on the gluteal fin; The caudal fin is slightly pointed. The body scales are small and the lateral lines are not significant. The back is yellowish brown and the abdomen is yellowish.
There are two light-colored lines on the head from the eye back, which extend longitudinally along the back of the body to the base of the caudal fin. There are many reticular patterns on the back and ventral side of the body, especially at the base of dorsal fin, gluteal fin and caudal fin, with more than 30 brown vertical stripes on the body side. In some individuals, the upper end of stripes is dark and black, and in some individuals, short stripes are mixed between stripes near the abdomen. The dorsal spinous base is dark brown, the pectoral fin is light yellow or grayish yellow, the other fins are gray, and the lower edge of the gluteal fin is often decorated with white edges.