PROBLEM TO BE SOLVED: To provide a land rearing device of tuna, including a feed pipe for easily forming a swirling flow of rearing water in a water tank of the land rearing device for rearing tuna.SOLUTION: A land rearing device of tuna includes a cylindrical water tank 1, and a feed pipe 2 for supplying rearing water to the water tank 1. The land rearing device of tuna is such that: an end of the feed pipe 2 is connected to an inner wall surface of the water tank 1 and forms a water supply port and a discharge direction of rearing water supplied from the water supply port is provided so as to be a tangential direction of the water tank 1 in a circumferential part of the water tank 1.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2016,JPO&INPIT【課題】マグロを養殖する陸上飼育装置の水槽において容易に飼育水の旋回流を形成可能な給水管を備えるマグロの陸上飼育装置を提供すること。【解決手段】円筒状の水槽1と、前記水槽1に飼育水を供給する給水管2と、を備えるマグロの陸上飼育装置であって、前記給水管2の端部は前記水槽1の内壁面に接続して給水口を形成しており、前記給水口から供給される飼育水の排出方向は、前記水槽1の円周部において前記水槽1の接線方向となるように設けられていることを特徴とするマグロの陸上飼育装置。【選択図】図1
