The technical points are as follows:
First, strict pond cleaning and disinfection. Pelteobagrus fulvidraco is a small economic fish at the bottom, and its predation ability is relatively weak. Carnivorous fish and fierce fish in the pond have a direct impact on their growth and survival. Therefore, the pond must be thoroughly cleaned and disinfected, so as to remove carnivorous fish and fierce fish in the pond and prevent miscellaneous fish eggs from entering the pond. Dosage of disinfectant: bleaching powder 10~ 15 kg/mu or quicklime 150~200 kg/mu.
Second, increase the stocking quantity of Pelteobagrus fulvidraco. In mid-March, the tail weight per mu 10 ~ 20g, and 3,500 ~ 4,000 Pelteobagrus fulvidraco. In order to purify the water quality, silver carp100 ~10 (silver carp accounts for 10%) is put in about 250g/ piece per mu. When stocking fish, soak them in 2-3% salt solution for 5- 10 minute.
Third, control the stocking of soft-shelled turtles. The characteristic of "1822 1" culture mode is that the adult turtles are cultured in the pond for two years, and the specification of coming out of the pond is more than1000g. It is required to put in high-quality turtle species, control the stocking amount of turtle species and implement ecological farming. Stocking quantity: 100~ 120 The turtle species transferred to the pond last year were released at the beginning of the year, with a specification of 500 ~ 600g/ turtle; Release 120~ 150 turtles per mu in early May, with specifications of 100 ~ 250g/ turtle, and release at one time.
Fourth, strengthen feeding management.
1, Feeding Pelteobagrus fulvidraco: First, domesticating food. No matter whether the fingerlings of Pelteobagrus fulvidraco come from the wild or pond culture, they must be domesticated by artificial feeding when they start feeding. Domestication method: After the fish enter the pond for 2 days, the animal feed is ground into paste, mixed with the artificial crushed material and kneaded into a ball, and fed at a fixed point on the feed table. 15~20 days later, gradually reduce the amount of animal feed and increase the amount of artificial compound feed until the artificial compound feed is completely fed. The second is to adhere to the "four fixed" feeding principle. When the water temperature was 65438 05℃, Pelteobagrus fulvidraco began to feed. Feeding amount: 15~20℃ is 0.5% ~ 2.0% of fish weight, 1 time/day, and above 25℃ is 4~7% of fish weight, twice/day. The crude protein content of feed for Pelteobagrus fulvidraco should be 35~42%.
2. Breeding of soft-shelled turtles: Soft-shelled turtles use special feed for raising soft-shelled turtles. Feed every night 1 time, and the daily feeding rate is 4~6%. Take eating every day as the degree, and increase or decrease appropriately. Feed is put on the slope at the junction of land and water.
Fifth, pay attention to water quality control. The pool water should be kept fresh, soft and cool. One is to inject water or change water frequently to keep the depth of the pool water. From April to June, fresh water is injected every 10~ 15 days, and water is injected every 7~ 10 days in high temperature season from July to August, and each injection is 15 ~ 20cm. When the water quality is too fat, some old water should be discharged first, and then fresh water should be added to keep the depth of the pool water at 1.8 ~ 2.0m and the transparency within 35cm. The second is to turn on the aerator and sprinkle quicklime to improve the water quality. In the morning and around noon, start the aerator to increase the dissolved oxygen in the water. In high temperature season, every 20~25 days, the whole pond is sprinkled with 25~30 kg/mu of quicklime; When it is difficult to change water, such as water shortage or poor water quality, microecological agents can be used to improve the water quality of ponds.
Sixth, do a good job in preventing fish diseases. Adhere to the principle of "prevention first, treatment second and comprehensive prevention and treatment". In the whole feeding process, besides cleaning the pond and soaking and disinfecting before stocking fish, especially in the epidemic season of fish diseases, it is necessary to adopt the method of combining oral administration with external use drugs, feeding bait regularly and spraying external use drugs to prevent diseases.