Leeches eat snails and grow fastest, which is also their main food. The seedlings began to eat three days after entering the water. It starts peeling in about seven days, and peeling is one year old at a time. The best growth period of leech is 3 ~ 9 years old, the temperature is 25℃~ 28℃, the seedling length is 5cm ~ 6cm, and the finished leech is about 65438±00g g.
Extended data:
First of all, bait
Most of the bait is plankton, snails, shellfish, shrimp, fish and other animals in the water. At the same time, attention should be paid to the use of livestock and poultry blood from nearby slaughterhouses.
Second, large-scale farming in the field.
Extensive farming in the field is a kind of farming method that uses natural conditions and protects them by delimiting the farming scope. Extensive farming in the wild doesn't mean that you don't care, but you should also put in enough provenances, properly put in bait, and finally catch it. Generally, there are reservoir culture, pond culture, swamp culture, lake culture, river culture, depression culture and rice field culture.
Third, swamp agriculture.
Wetland is characterized by shallow water level, lush aquatic plants, rich organic matter and humus at the bottom of wetland, and rich plankton and aquatic animals. So as long as the fence is built, leeches can be released.
Baidu Encyclopedia-Leech Breeding