In 2007, our company had a total area of 512 mu of crab seedlings. At present, all branches are intensively carrying out seedling raising. Now the area of raising seedlings has reached 320 mu, the seedling quantity is 9800 catties, and the average unit yield is 30.6 catties. Among them, the No. 14 pool in the C area of the Delta branch has a unit yield of 65.9 kilograms, a record high.