First, build the pool
Choose a place where the water source is sufficient and drainage and irrigation are convenient. Large-scale breeding should build spawning ponds, ponds, and ponds. In general, farmers can renovate ponds, channels, gutters, and paddy fields based on existing water surfaces. There is less water under the radon and the water surface is small. Generally about 40 ponds per square meter of water can be cultivated. Chengchi Lake area is generally 1-2 acres, Dianchi 10-40 square meters, spawning pool 10 square meters. Chengyu Pond should maintain a ratio of 1:1 between the gap and the surface of the water, keep the depth of the pool at 80 cm, and build a wall with a height of 80 cm or more around the pool and wipe it to a smooth surface. Or use other materials made of anti-escape facilities. Put a awning above the pond or plant vines such as gourd, chayote and grape. There are a number of caves of varying sizes in the walls of the wall, and some plants such as corn, soybeans, and damp-tolerant plants are planted in the gaps. Some aquatic plants are placed in the pool.
Second, seed breeding
Every year in late March to late April method toad eggs hatching, fry solved in three ways: First, looking at the toad eggs to hydrostatic blocks in the rain spawning season, salvaged placed directly on the tank hatch or no toads In the breeding pond, put 2500 eggs per square meter, the temperature is 18-25OC, 3 days can be hatched. To use this method must be enough at a time, otherwise the hatching time is inconsistent, and the size varies, affecting the survival rate. The second is to catch the overwintering mites in humid places in the wild after the temperature is stable above 10OC. Select individuals and put them in the spawning pool at a ratio of 3:1. Let them be naturally mated, spawned, fertilized and fertilized. The rate can reach more than 90%. Eggs produced each day should be collected in another pool for natural hatching. The progeny who produce the eggs must also be kept in another pool, and no production will continue to be retained. Third, to the breeding units to purchase their excellent breeding parents to adopt the method of artificial production, centralized spawning and hatching.
The newly hatched quail, often sucked on egg shells or aquatic plants, does not feed on its own yolk sac. Two to three days later, Otaru began to eat algae or other bait in the water. In the breeding ponds, a small amount of fermented pigs, cow dung, and plankton should be introduced one week in advance. Do not spill the excrement after entering the pool to avoid injury. Spawning pools, Dianchi water depth generally maintain 20-40 cm. The pH is 7-8. If the water quality is too thin, chopped vegetables, fish guts, pig blood, and rice water can be fed 1-2 times a day. After half a month of cultivation, when the body is up to 3 centimeters in length, it can be removed and put into a larval pool for culture. It takes about 40 days to hatch the eggs from the eggs to the larvae.
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