PROBLEM TO BE SOLVED: To provide a capsule for culture in which chemicals or nutrients consisting of fish meal, animal and plant based proteins, carbohydrates, vitamin preparations, oils and fats or the like to be given to fishes are coated with a film not causing a problem even if the fishes take it in, thereby enabling the fishes to directly take the nutrients or chemicals without causing dissolution thereof in ambient breeding water.SOLUTION: A space 3 for buoyancy adjustment according to the specific gravity of breeding water is provided in a capsule 1 to change the specific gravity of the capsule 1, so that the capsule 1 can stay in the range from a surface to a middle of the breeding water without sinking to the bottom, thereby reducing the remnant rate of the capsule 1 and realizing mariculture capable of reducing a risk of contaminating an ambient environment due to outbreaks of red tide, and closed recirculating land culture capable of reducing a cleaning cost and a burden on a filtration apparatus.COPYRIGHT: (C)2016,JPO&INPIT【課題】魚に与える魚粉や動植物系のたんぱく質や炭水化物、ビタミン剤、油脂などからなる栄養分、または薬品を、栄養分または薬品を周囲の飼育水に溶出させることなく、魚が摂取しても問題ない膜で被覆し、魚に直接摂取させることができる養殖用カプセルを提供する。【解決手段】カプセル1内に飼育水の比重に応じた浮力調整用の空間3を設けることにより、カプセル1の比重を変え、底に沈ませることなく飼育水の表層から中間層中に滞留させることができ、カプセル1の残滓率の低減により、海上養殖であれば赤潮発生による周囲環境の汚染リスク、閉鎖循環型の陸上養殖であれば、ろ過装置の負荷や清掃コストの低減が可能となる。【選択図】図1
