< Topic >As it can raise the adult of nihonzarigani relatively, easily female solid-state incubation factor raises it augments the number of eggs, decreases the food egg, the falling egg or the number of addle eggs, it is possible, furthermore to raise the hatchability of the egg, it is young, the device which can raise the survival ratio of the body which is hatched is offered.SolutionsInstalling being the device in order to raise after the artificial hatching and the hatching of the egg of nihonzarigani inside the tank, being formed the matting making use of the component of 3 which is formed from the unit 31 which possesses multilateral form and the like as raising container 2 in the hexahedron where the surface which at least excludes the roof surface is the transparency or the translucency and mesh condition and the whole and mesh condition, it has the opening, the aisle section and the residence section.< Choice figure >Drawing 1【課題】ニホンザリガニの成体を比較的容易に飼育することができ、雌固体の抱卵率を高めるとともに卵数を増加させ、食卵、落卵あるいは腐卵の数を減少させ、卵の孵化率を高めることができ、さらに孵化した幼体の生存率を高めることができる装置を提供する。【解決手段】水槽内に設置してニホンザリガニの卵の人工孵化や孵化後の飼育を行うための装置であって、少なくとも天井面を除いた面が透明または半透明かつメッシュ状である六面体の飼育容器2と、全体として多角形状等を有するユニット31から構成された敷材3と、メッシュ状の部材を用いて形成されて、開口部、通路部および居住部を備える。【選択図】図1
