Crayfish originated in Louisiana in the south of the United States. In the 1920s, Japanese introduced crayfish to China as feed for bullfrogs. Crayfish is a freshwater economic shrimp with strong adaptability to the environment, and it is an omnivorous animal, mainly feeding on algae, aquatic insects and animal carcasses.

The origin of crayfish

Crayfish originated in Louisiana in the south of the United States. The Japanese introduced crayfish from the United States as the feed for bullfrogs, and later brought crayfish to China. Crayfish has strong adaptability to the environment, fast growth speed, and often cuts crops. It is an invasive species threatening local fish and aquatic plants.

Living habits of crayfish

Crayfish is resistant to high temperature and cold, and can live normally when the ambient temperature is higher than 40 degrees or lower than-14 degrees, and the life span of crayfish is short, about 1-2 years, and it will dig caves at a place 20 centimeters above the water surface of the pond, and crayfish is an omnivore, mainly feeding on aquatic algae and animal carcasses.

Culture method of crayfish

When cultivating crayfish, it is necessary to establish a breeding place in a place with good water quality and sufficient water resources, and install anti-escape equipment near the pond to prevent crayfish from escaping. Before releasing shrimp seedlings, it is necessary to sprinkle quicklime into the pond for disinfection, and plant aquatic plants in the pond to provide food for crayfish.