| 摘要 |
Recycling feed in fish farms 1 by collecting granulated food remains sinking in the fish farm from a feed supplying device 3 in a feed collector 2. The food remains are then pumped back through a return pipe 4 to a feeding device 6, and then further back into the fish farm again. The feed collector is able to be elevated or lowered to a desired depth in the fish farm using a elevating and lowering device 9. |
