关键词: 遗传转化, 遗传转化

Abstract:

In order to develop "the old eel" production potential, and further improve the breeding efficiency. In this experiment, we farmed "the old eel" with cage in the reservoir in Sidu Town, Changting County, Fujian Province, in October 2011 to July 2012. The results showed that, (1) in this experiment, the number of "the old eel” belonged to two different specifications was 9.5t in total, after they were out of the cage, the production was 15600 kg, the average survival rate was 85.53%, in July 28th. (2) To different specifications of＂the old eel＂, average daily feeding rate did not exceed 1%, the average value of feed conversion rate was 48.5, and the average feed coefficient was 2.07, this feed coefficient reached the level of normal eel cultured in intensive pond. (3) The cage culture did not occurred insect pests during the trial, but outbreak of vibriosis disease caused 13.7% of eel’s death, the number was 1.3 t. The results showed that the eel cultured by cages in reservoir compared with eel farmed in local pond in the same period, there were potential advantages such as the fast individual growth speed, short breeding cycle, little disease, high yield per unit area, low cost of aquaculture production.