A, incubation period
Must be raised from artificial egg collection after hatching, tadpoles out of the membrane in the original hatchery or net box cultivation, each square meter of water surface stocked with 600 to 800 tails. The tadpoles will be artificially baited on the 4th day after hatching, and the tadpoles need to be moved into the rearing pool after one week of feeding. After about 20~30 days, the tadpoles are gradually fed with red worms, water fleas and fly maggots as their main food, or soybean milk, soya bean dregs, soya bean cake powder and chlorella as their main food, and a certain amount of fishmeal can be added to promote their growth. Generally per 10,000 tails with 15 cooked eggs crushed with water to feed 1 to 2 times. After the 5th day, switch to soybean milk, wheat bran, tofu dregs with feed or rice bran and fish meal and other feeds, input 1 to 2 times a day, feed put on the bait table, powdered bait first water into a viscous form and then splash feed.
Two, tadpole period
Just hatched tadpoles, body small, black, swimming ability is poor, as the individual grows up, the ability to swim increased, so in the hatchery to feed about 10 days before transferring to the tadpole pool. Before the tadpoles are put into the pool, the pool should be cleaned and disinfected with 200PPM bleach, or if it is a mud pool, it should be disinfected with quicklime (75KG per acre), and then the tadpoles should be put into the pool after the efficacy of quicklime has disappeared in 7 days (and after the water test).
Three, young frog period
The tadpoles should be transferred to the young frog pond in time after metamorphosis. Generally speaking, 80-100 young frogs can be placed in each square meter after metamorphosis. After 30 days of metamorphosis, young frogs weighing up to 2550g can be placed 3050 per square meter. In order to prevent predators, according to the size of the timely rearing of graded.
Four, adult frog period
Adult frog pool is generally suitable for 300 square meters, the depth of the pool water to maintain 11.2 m. Pool land weeds (can also be planted agricultural plants), there are inlet and outlet, to establish an anti-escape wall, the height of 1.5 m or so. Each square meter can be cultured 1020. The bait for adult frogs is the same as that for young frogs, but the feeding quantity is larger, 5% in 56 months and 20% in 78 months.
The nutrients and precautions needed for each growth stage of the frogs will be different, so you must do it in separate pools when breeding.