Method of temporarily keeping river crab for sale
Patent Information
- Authority / Receiving Office
- CN · China
- Current Assignee / Owner
- 朱è®çŒ›
- Publication Date
- 2007-12-19
- Estimated Expiration
- Not applicable · inactive patent
Abstract
Description
technical field
[0001] The invention relates to a method for temporarily raising river crabs for sale. Background technique
[0002] Temporary cultivation of river crabs means that sexually mature river crabs are harvested and fattened for a short period of time for sale. However, if the management is not proper during the temporary raising process, it is easy to cause a large number of temporarily raised crabs to die. There are several reasons for this:
[0003] 1. It is physical death. After the gonads of river crabs are mature, they carry out reproductive migration for the reproduction of offspring. If they continue to be kept in fresh water for a while, they will cause physiological disorders, and the osmotic pressure in the body will be too high and they will die (swelling). Therefore, during the temporary raising of river crabs, over-mature yellow crabs should be removed.
[0004] 2. The quality of river crabs is poor. The specifications of the temporarily raised ...