The feed for crayfish to grow fast includes: animal feed, plant feed, compound feed and live feed for trapping insects by light.

1. Animal feed mainly includes plankton, live animal feed and animal scraps. The live and fresh bait artificially cultivated and fed includes loach, silkworm chrysalis, fly maggot, snail, Tenebrio molitor, small miscellaneous fish and silver carp meat foam.

2. The plant feed should pay attention to cereals, including wheat flour, corn flour, chaff, soybean paste residue and so on. Moderate feeding of fiber-containing flowers and grass feed is beneficial to promote the gastrointestinal peristalsis of crayfish.

3. The compound feed mainly includes powder feed, residual sugar fermented feed, particulate feed, microcapsule particulate floating feed, etc. This kind of feed is very suitable for large-scale culture of crayfish, which can make up for the shortage of total animal feed.

4. Light trapping means using black light to attract insects. This method is very good as a feed supplement for crayfish. Insects and juveniles are very good bait for crayfish.

Precautions for crayfish maintenance

1. Generally, the water level of crayfish cultured in ponds is maintained at 1 meter long. Because crayfish also have the growth habit of opening holes above the water level, it is easy for crayfish to consume energy repeatedly when the water level cannot be high or low, which will lead to limited production.

2. Planting grass and throwing snails with moderate density of aquatic plants can provide crayfish with natural bait and animal bait. According to the photosynthesis of aquatic plants, the dissolved oxygen in the pond can be improved, which provides a place for crayfish to cool down in summer and summer in hot weather. It can also provide a safe place for crayfish to shed their shells and avoid enemy damage, especially aquatic plants.