Detailed Explanation of the Breeding Methods and Technical Points for Chinese Mitten Crab
The Chinese mitten crab is a traditional aquatic delicacy of our country, with high food value, medicinal value and economic value. It is deeply loved by people, and its price is also relatively expensive. So, how do Chinese mitten crabs breed?
1. How do Chinese mitten crabs breed?
The Chinese mitten crab is oviparous, generally reaching sexual maturity in two years. Every autumn it begins its reproductive migration, mating, spawning, hatching and developing in brackish water. Its life is divided into three growth stages: the larval stage, the yellow crab stage and the green crab stage, and each growth and development period involves molting. Once a yellow crab molts and becomes a green crab, it enters the sexually mature stage. Crabs that mature in the current year will die after their fertilized eggs hatch the following year.
2. Which parts of the Chinese mitten crab cannot be eaten?
The crab gills, crab stomach, crab intestine, crab heart and crab shell of the Chinese mitten crab cannot be eaten. The crab gills are the respiratory organs of the Chinese mitten crab and are the dirtiest part of the body, as well as the main place where parasites live, so they must be removed. The crab stomach is also very dirty and contains the excrement of the Chinese mitten crab, so it must be removed. The crab intestine is the tube connecting the crab stomach and the navel, and it also contains excrement, so it must be removed. The crab heart grows in the middle of the crab roe and is connected to the crab stomach. It is also not very clean, so it must be thrown away. The crab shell is relatively hard and is generally not eaten, so it must be thrown away.
3. When should Chinese mitten crabs be eaten?
Folk sayings about Chinese mitten crabs include “when the autumn wind rises, crab legs itch; in the ninth month eat the round navel, in the tenth month eat the pointed one” and “ninth month males, tenth month females”, which means eating female crabs in the ninth lunar month and male crabs in the tenth lunar month.