< Topic >It is superior in stability of fodder supply, and conservation of the fodder it offers feed characteristic and the fodder for the fish farming which is superior in feed efficiency.SolutionsBeing outside layer and the fodder for the fish farming which consists of the inner layer, physical properties of the composition of outside layer, rupture stress 5 104 - 1 106 N/m2, cohesion characteristic (30%) 0.4 - 1.0, is the fodder for the fish farming which features that break distortion factor is 30 - 80%. Outside was constructed the protein and/or by the heating gel of the starch it is the fodder for the fish farming which features that it consists of the inner layer which consists of the composition which includes the nutrition component which designates layer and the fish meal and the oil and fat as the necessary component. As a protein, the fish meat ground meat, the fish meat dropping body, the krill and the gelatin, the collagen and the gluten, the egg white, the soybean protein is desirable. As a starch, the tapioca starch, the wheat starch, the potato starch, the corn starch and the bean starch, wakishikonsutachi, and those modified starches are desirable.< Selective figure >It is not【課題】飼料供給の安定性、飼料の保存性に優れ、摂餌性と飼料効率に優れた養魚用飼料を提供する。【解決手段】外層と内層からなる養魚用飼料であって、外層の組成物の物性が、破断応力が5×104~1×106N/m2、凝集性(30%)が0.4~1.0、破断歪率が30~80%であることを特徴とする養魚用飼料である。蛋白質及び/又は澱粉の加熱ゲルによって構築された外層と魚粉と油脂を必須成分とする栄養成分を含む組成物からなる内層からなることを特徴とする養魚用飼料である。蛋白質としては、魚肉すり身、魚肉落し身、オキアミ、ゼラチン、コラーゲン、グルテン、卵白、大豆蛋白質が好ましい。澱粉としては、タピオカ澱粉、小麦澱粉、馬鈴薯澱粉、トウモロコシ澱粉、豆澱粉、、ワキシーコンスターチ、及びそれらの加工澱粉が好ましい。【選択図】なし
