Pelteobagrus fulvidraco and soft-shelled turtle make a net profit of 10,000 yuan per mu.

In recent years, with the breakthrough of special feed and seedling cultivation technology of Pelteobagrus fulvidraco, various culture models such as main culture, mixed culture and captive culture have been applied rapidly. The "18221" pond efficient culture model is to use Pelteobagrus fulvidraco with high economic value to replace the traditional "four big fish" and soft-shelled turtle mixed culture model. This model means to produce 800 jin of Pelteobagrus fulvidraco and 200 jin of soft-shelled turtle in one mu of water surface, with an output value of 20,000 yuan and a profit of 10,000 yuan. It is a typical high-yield and high-efficiency culture model.

The main technical points are as follows:

First, strictly clear the pond and disinfect it. Pelteobagrus fulvidraco is a small economic fish at the bottom, and its grazing ability is relatively weak. Eating predatory fish and ferocious fish in the pond have a direct impact on their growth and survival. Therefore, clear the pond must be thoroughly disinfected, in order to remove feeding fish and ferocious fish in the pond, and prevent miscellaneous fish eggs from entering the pond. Dosage of disinfectant: bleach 10kg / mu or quicklime 150kg / mu.

Second, increase the stocking amount of Pelteobagrus fulvidraco. In the middle of March, the tail weight per mu was 10g / mu and 3500g / mu. In order to purify the water quality, another 250g / mu is matched with about 100,110 silver carp species (silver carp accounts for 10%). When the fish are released, soak them in 23% salt water for 5 minutes for 10 minutes.

Third, control the stocking amount of soft-shelled turtle. The "18221" culture model is characterized by: the adult soft-shelled turtle has been cultured in the pond for two years, and the size of the pond is more than 1000 grams. It is required to put in high-quality soft-shelled turtle seed, control the amount of soft-shelled turtle seed stocking, and carry out ecological breeding. Stocking capacity: at the beginning of the year, 120 soft-shelled turtles were released in the pond last year, with a specification of 500kg / mu; in the first ten days of May, 150 soft-shelled turtles were released in the first ten days of May, each with a specification of 100g / 250g.

Fourth, strengthen the feeding management.

1. Pelteobagrus fulvidraco feeding: first, domestication. Whether the species of Pelteobagrus fulvidraco come from the wild or from pond culture, when starting feeding, the undomesticated species must be domesticated artificially. Domestication method: two days after the fish entered the pond, the animal feed was twisted into a minced shape and mixed with artificial crushed materials into a ball, and then fed on the feed table at a fixed point. After 15 days and 20 days, the amount of animal feed was gradually reduced and the amount of artificial compound feed was increased until the artificial compound feed was completely fed. Second, it is necessary to adhere to the "four determinations" feeding principle. When the water temperature was 15 ℃, Pelteobagrus fulvidraco began to feed. Feeding amount: 15: 20 ℃ is 0.5% of the fish's body weight. 2.0% of the fish's body weight is fed once a day, and when it is more than 25 ℃, the feeding amount is 4 / 7% of the fish's body weight twice a day. The feed for yellow croaker requires a crude protein content of 35,42%.

2. Feeding of soft-shelled turtles: special feed for soft-shelled turtles. Feed once every evening, the daily feeding rate is 40.6%. Every day to eat for the degree, appropriate increase or decrease. The feed should be fed on the slope at the junction of water and land.

Fifth, attach importance to water quality control. The pool water should be kept alive, tender and fresh. One is to inject or change water frequently to maintain the depth of the pool. From April to June, new water is injected once every 10-15 days, and once every 10-10 days in the high temperature season of July and August, with 15-20 cm each time. When the water quality is too fat, first discharge part of the old water, and then add new water to keep the depth of the pool water 1.8-2.0 meters, transparency less than 35 cm; second, turn on the aerator and sprinkle quicklime to improve water quality. In the early morning and around noon, turn on the aerator to increase the dissolved oxygen in the water. In the high temperature season, sprinkle with quicklime 25kg / mu every 20 to 25 days; when it is difficult to exchange water, such as insufficient water source or poor water quality, microecological agents can be used to improve the water quality of the pond.

Sixth, do a good job in fish disease prevention. Adhere to the principle of "giving priority to prevention, supplemented by treatment, and comprehensive prevention and control". In the whole feeding process, in addition to cleaning ponds and bathing disinfection of fish fry before stocking, especially in the epidemic season of fish disease, the combination of internal and external medicine should be adopted to regularly feed bait and sprinkle topical drugs for disease prevention.