| 摘要 |
[Problem] To provide a feed for fish farming which is excellent in terms of stability of feed supply and feed shelf life and which has excellent feed intake and feed efficiency. [Solution] A feed for fish farming consisting of an outer layer and an inner layer, characterized in that a composition constituting the outer layer has a breaking stress of 5×104 to 1×106 N/m2, a cohesiveness (30%) of 0.4 to 1.0, and a breaking strain of 30 to 80%. A feed for fish farming characterized by consisting of an outer layer constructed from a heat-induced gel which comprises a protein and/or a starch, and an inner layer comprising a composition which contains nutrient ingredients having fish meal and an oil as essential ingredients. As the protein, surimi, ground fish meat, krill, gelatin, collagen, gluten, egg albumen and soy bean protein are preferred. As the starch, tapioca starch, wheat starch, potato starch, corn starch, bean starch, waxy corn starch and processed products of these starches are preferred. |
