JPWO2019177024A1 - 養魚用飼料 - Google Patents
養魚用飼料 Download PDFInfo
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- JPWO2019177024A1 JPWO2019177024A1 JP2020506605A JP2020506605A JPWO2019177024A1 JP WO2019177024 A1 JPWO2019177024 A1 JP WO2019177024A1 JP 2020506605 A JP2020506605 A JP 2020506605A JP 2020506605 A JP2020506605 A JP 2020506605A JP WO2019177024 A1 JPWO2019177024 A1 JP WO2019177024A1
- Authority
- JP
- Japan
- Prior art keywords
- fish
- feed
- exodermis
- oil
- scombridae
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K40/00—Shaping or working-up of animal feeding-stuffs
- A23K40/25—Shaping or working-up of animal feeding-stuffs by extrusion
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/20—Animal feeding-stuffs from material of animal origin
- A23K10/22—Animal feeding-stuffs from material of animal origin from fish
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/10—Organic substances
- A23K20/142—Amino acids; Derivatives thereof
- A23K20/147—Polymeric derivatives, e.g. peptides or proteins
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/10—Organic substances
- A23K20/163—Sugars; Polysaccharides
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K40/00—Shaping or working-up of animal feeding-stuffs
- A23K40/30—Shaping or working-up of animal feeding-stuffs by encapsulating; by coating
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K50/00—Feeding-stuffs specially adapted for particular animals
- A23K50/80—Feeding-stuffs specially adapted for particular animals for aquatic animals, e.g. fish, crustaceans or molluscs
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Zoology (AREA)
- Food Science & Technology (AREA)
- Animal Husbandry (AREA)
- Marine Sciences & Fisheries (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Insects & Arthropods (AREA)
- Birds (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Biotechnology (AREA)
- Molecular Biology (AREA)
- Physiology (AREA)
- Fodder In General (AREA)
- Feed For Specific Animals (AREA)
Abstract
Description
(1)外表面を構成する外皮と、前記外皮に包まれる内包とによって、側面が略円柱形状を呈し、両方の端部が前記外皮で被覆されて閉鎖しているとともに、前記両方の端部のうち少なくとも一方に、前記外皮が前記端部の方向へ突出した先細り形状の突出部が形成されていることを特徴とするサバ科魚類の養魚用飼料。
(2)前記突出部において、前記外皮が前記端部の方向へ厚みを増していることを特徴とする(1)のサバ科魚類の養魚用飼料。
(3)前記両方の端部のいずれにも、前記突出部が形成されていることを特徴とする(1)又は2のサバ科魚類の養魚用飼料。
(4)前記側面から、前記端部に向かって外方に凸な曲面をもって径が漸減する縮径部を有し、前記突出部は前記縮径部の前記端部に形成されているとともに、前記縮径部と前記突出部との間には、前記端部に向かって外方に凹な曲面をもって径が漸減する変曲部が形成されている(1)〜(3)のいずれかのサバ科魚類の養魚用飼料。
(5)前記突出部は、外表面を構成する前記外皮が前記端部の方向へ縮径された痕跡を有することを特徴とする(1)〜(4)のいずれかのサバ科魚類の養魚用飼料。
(6)前記外皮は、澱粉、蛋白質及び魚粉を含有することを特徴とする(1)〜(5)のいずれかのサバ科魚類の養魚用飼料。
(7)前記サバ科魚類は、マグロ類であることを特徴とする(1)〜(6)のいずれかのサバ科魚類の養魚用飼料。
図1は、本発明の実施の形態に係るサバ科魚類の養魚用飼料10の側面図である。本実施の形態に係るサバ科魚類の養魚用飼料10は、外表面を構成する外皮20と、前記外皮20に包まれる内包30(図3参照)とによって構成されている。本図に示すように、サバ科魚類の養魚用飼料10は、側面11が略円柱形状を呈している。
外皮20は、その成分として、澱粉及び蛋白質のうちの一方又は両方を含有することができる。また外皮20は魚粉を含有することができる。本実施形態において外皮20は、上記成分を含むものであり、かつ、内包30を包み込めるものであれば特にその種類は問わないが、蛋白質を加熱してできるゲル、あるいは、澱粉を加熱してできるゲルの物性が、その柔軟性、伸展性などの点で、外皮20として適している。蛋白質としては、魚肉、すり身、オキアミ、グルテン、コラーゲン、大豆蛋白、酵素分解大豆蛋白、ゼラチン若しくは卵白などの単体又はこれらの2種以上の混合物などのゲル形成能を有する蛋白質含有物質が好ましい。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、豆澱粉若しくはワキシーコーンスターチ、又はこれらの加工澱粉が好ましい。これら蛋白質及び澱粉を多く含む食品素材を用いることもできる。これら蛋白質及び澱粉を含む組成の外層は加熱することによりゲルが固定され、柔軟性を持ち、かつ、内包30の保持力もあり、一定の強度を有する。また、上記のような、蛋白質又は澱粉を加熱してできるゲルの物性をもつ成分とともに、又はこれに替えて、加熱して溶けたものを放熱又は冷却することによりゲル化する成分を用いることもできる。そのような成分としては、たとえばゼラチン、寒天などを挙げることができる。
内包30の組成物は魚粉と油脂が主成分であるが、養魚用の栄養成分として知られているその他の栄養成分、たとえば、ビタミン、ミネラル等を添加してもよい。また、外皮20に包まれているが魚粉や液状である油脂が漏れることがあっては好ましくないので、多糖類や硬化油を配合、また乳化し安定化させることもできる。特に、機械で製造する場合、内層組成物の物性を機械適性のある流動性、物性にするのが好ましい。また、魚油を固める硬化油や魚油を吸着する多孔質素材などを添加するのが好ましい。油脂吸着剤としての多糖類としては、オイルQ(商品名、日澱化学株式会社製)、粉末状大豆蛋白質ニューフジプロSEH(商品名、不二製油株式会社製)等が例示される。
外皮20は、下記表1の組成とした。
製造後、上記乾燥処理後に、端部12、52から液状油の漏出の見られなかった良品率は、比較例では65%であったのに対し、実施例では100%であった。
10kgサイズのクロマグロを2,000尾収容する養殖生け簀に、比較例の養魚用飼料50を、給餌開始日を第0日として第42日まで給餌した後、第43日からは実施例のサバ科魚類の養魚用飼料10を給餌し、摂食量の変化を観察した。なお、給餌方法は、マグロが摂食するだけ給餌する、いわゆる飽食給餌にて行った。その結果を下記表3に示す。
Claims (7)
- 外表面を構成する外皮と、前記外皮に包まれる内包とによって、側面が略円柱形状を呈し、両方の端部が前記外皮で被覆されて閉鎖しているとともに、前記両方の端部のうち少なくとも一方に、前記外皮が前記端部の方向へ突出した先細り形状の突出部が形成されていることを特徴とするサバ科魚類の養魚用飼料。
- 前記突出部において、前記外皮が前記端部の方向へ厚みを増していることを特徴とする請求項1記載のサバ科魚類の養魚用飼料。
- 前記両方の端部のいずれにも、前記突出部が形成されていることを特徴とする請求項1又は2記載のサバ科魚類の養魚用飼料。
- 前記側面から、前記端部に向かって外方に凸な曲面をもって径が漸減する縮径部を有し、
前記突出部は前記縮径部の前記端部に形成されているとともに、
前記縮径部と前記突出部との間には、前記端部に向かって外方に凹な曲面をもって径が漸減する変曲部が形成されている請求項1〜3のいずれか1項記載のサバ科魚類の養魚用飼料。 - 前記突出部は、外表面を構成する前記外皮が前記端部の方向へ縮径された痕跡を有することを特徴とする請求項1〜4のいずれか1項記載のサバ科魚類の養魚用飼料。
- 前記外皮は、澱粉、蛋白質及び魚粉を含有することを特徴とする請求項1〜5のいずれか1項記載のサバ科魚類の養魚用飼料。
- 前記サバ科魚類は、マグロ類であることを特徴とする請求項1〜6のいずれか1項記載のサバ科魚類の養魚用飼料。
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