PROBLEM TO BE SOLVED: To provide a cultivation device which can easily discharge organic garbage generated in a cultivation process without adhesion thereof to shell bodies or a surrounding container in cultivation of a bivalve having no byssus.SOLUTION: There is provided a cultivation device 1 for cultivating a bivalve having no byssus using raising water, the cultivation device comprising: a holding container 20 comprising a channel 21 penetrating in a vertical direction, a lower opening 22 of the channel 21 being smaller than an upper opening 23 of the channel, and the holding container 20 holding the bivalve in the channel 21 with the raising water allowed to circulate in the channel 21； a water storage container 30 defining therein a storage chamber 31 for housing the holding container 20 and storing the raising water, and comprising in its bottom a discharge hole 32 in communication with the storage chamber 31； and a discharge valve 40 which can open and close the discharge hole 32.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2020,JPO&INPIT【課題】足糸を有さない二枚貝を養殖する場合に、養殖過程で生じる有機汚物を貝本体又は周辺の容器に付着させず、容易に排出する養殖装置を提供する。【解決手段】足糸を有さない二枚貝を、育成水を用いて養殖する養殖装置１であって、上下方向に貫通した流路２１を有し、前記流路２１の下方の開口２２は前記流路の上方の開口２３よりも小さく、前記育成水が前記流路２１を流通可能な状態で前記流路２１内において前記二枚貝を保持する保持容器２０と、前記保持容器２０を収容するとともに前記育成水を貯留する貯留室３１をその内部に画成し、前記貯留室３１と連通する排出口３２を底部に有する貯水容器３０と、前記排出口３２を開閉可能な排出弁４０と、を備える養殖装置。【選択図】図１
