(1) The needs of crabs for various types of nutrients should be met, especially for feed protein requirements. The amount of feed protein required for adult crabs was about 35%, which was higher in the early culture period and slightly lower in the later period.
(2) Feed types need to be diversified in order to complement and balance the amino acids in the feed. Local materials can be used in local conditions to make use of a variety of raw materials with high quality, good quality, and low cost.
(3) It is necessary to add a certain amount of inorganic salt additives (especially calcium and phosphorus, etc.) in order to improve the utilization of feed and further develop the nutritional value of feed.
(4) High stability in water. The crab caught the feed with its chewing feet and immediately sent it to the entrance after further tearing. According to this feeding habit, compound feeds are required to have strong adhesiveness.
(5) It is necessary to add capsin.
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