The key to the technique of raising mandarin fish in ponds

The main results are as follows: (1) the selection of culture conditions: it is appropriate to choose a pond with sufficient water source, convenient water injection and drainage and good water quality, with an area of 2 mu and a depth of 1.5 meters.

(2) preparation before stocking: ① disinfects the pond. After the main culture pond was cleared by ②, mature base fertilizer or biological fish fertilizer was applied to cultivate plankton in the water body. After 3 days, the amount of cheap bait fry was 20 to 30 times larger than that of mandarin fry.

(3) release specifications and seedling delivery: ① pond main culture. There are 800 and 1200 mandarin fish fry with a body length of 5 cm and 6 cm per mu. ② adult fish pond captive culture. About 50 million mandarin fish (3.3 cm) are stocked per mu. ③ fish pond captive culture. There are 15 ~ 25 mandarin fish species of about 50 grams per mu.

(4) set up matching feed ponds: each mu of mandarin culture ponds should be matched with bait fish culture ponds of 3 mu, which can be put into carp, crucian carp, grass, silver carp, mud carp, or some wild miscellaneous fishes with earlier breeding time and larger reproduction capacity, and a large number of fry can be propagated for mandarin fish to feed.

(5) feeding and management. Feed fish feed about 5000 bait fish (about 2kg / kg) if the fry of mandarin fish with a weight of 0.5g (about 3cm in body length) are raised to 500g. According to the growth and weather conditions of the fish, the bait fish should be put in time, preferably once every 3-5 days, so that the bait fish in the pond can maintain a certain density. In the case of adequate food sources, we should try to throw more bait fish, so that mandarin fish have sufficient food.