The main technical content: two-step method to raise frogs, that is, the first year of aquaculture, the new two years after the ditch cultivation of breeding frog mode 1, breeding. Choose a spawning pond, hatching pond and rearing pond where sunlight is sufficient and where the terrain is flat. The water depth is 10 to 30 cm, and the dam height is 50 to 60 cm. The water temperature in the spawning pool is preferably 10 to 11°C, and the male to female ratio is preferably 1:1, and spawning occurs naturally. The egg mass density was 5 to 10 pellets/m2 and placed in a calm water. Incubation adopts natural incubation method, water temperature is 10～15°C, and closed irrigation method is used to control water temperature, water quality and dissolved oxygen. Feeding pond water temperature 10 ~ 25 °C. Tantalum density per square meter of water, the initial period of 5000, the medium-term 2,000 to 3,000, the late 1000. Feeding amount is calculated in 10,000, no need to feed before the age of the week, 8 to 15 days, once a day, each feeding 1 kg, 16 to 25 days, twice daily, each feeding 2.5kg, 26 ~ 40 days, three times a day, each feeding 3.5kg. 2, captive. After the metamorphosis, enter the circle breeding. The wall was turned into a plastic film, asbestos tile or cement board, with a height of 70cm and a length of 10cm along the upper edge. 25m2 per lap area, 10,000 young frogs. Within the circle, spray water 2 to 3 times a day, humidity 85 to 90%, and lay orange straw or deciduous moisture insulation. Daily feeding of Tenebrio, sterile fly maggots, cockroaches, cockroaches, etc., is not suitable for making materials. 3, winter. The wintering pond is built at the turning point of a constant stream of water. It is more than 1.5 meters deep, and grass and other hidden objects are laid on the bottom of the pond. The frogs enter the water in the early October and overwinter, and in the early April of the following year, the water emerges. 4, trench farming. The second instar frogs flow out into the mountains to live. The mountain forests are dominated by broad-leaved trees and their humus layers are abundant. Trench farming attention to management and defense of natural enemies.
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