JP3736775B2 - Ruminant feed formulation - Google Patents

Ruminant feed formulation Download PDF

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Publication number
JP3736775B2
JP3736775B2 JP22179396A JP22179396A JP3736775B2 JP 3736775 B2 JP3736775 B2 JP 3736775B2 JP 22179396 A JP22179396 A JP 22179396A JP 22179396 A JP22179396 A JP 22179396A JP 3736775 B2 JP3736775 B2 JP 3736775B2
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Japan
Prior art keywords
coating
component
core
rumen
feed
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JP22179396A
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Japanese (ja)
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JPH1042796A (en
Inventor
秀和 高橋
哲也 和佐
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Showa Sangyo Co Ltd
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Showa Sangyo Co Ltd
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Description

【0001】
【産業上の利用分野】
本発明は飼料成分、飼料添加物および/または動物薬などの反芻動物飼料用製剤に関する。さらに詳しくは、本発明は、反芻動物の第1胃中では安定で、第4胃以降の消化器官で飼料成分、飼料添加物および/または動物薬などの反芻動物に対して有効な成分を放出する飼料用製剤に関する。
【0002】
【従来の技術】
牛や羊のような反芻動物では、飼料の栄養成分や添加物および動物薬の様な生物学的な活性物質(以下、内容成分と呼ぶ)を投与しても第1胃中の微生物によって大部分が分解され、そのまま吸収されることはない。
【0003】
したがって、これらの内容成分が第1胃の微生物によって分解されずに第4胃以降で消化吸収されるような工夫が種々提案されている。これらは第1胃で分解されるのを防ぐ方法として第1胃で内容成分を製剤中に保持するものである。例えば米国特許第4533557号明細書(特公平2−12544号公報,特開昭58−175449号公報)ではマトリックス保護成分として、硬化油脂類とモノカルボン酸の少なくとも1種とキトサンおよび内容成分を混合、粒状成型してマトリックス型製剤としている。マトリックス型製剤は内容成分が表面付近にも存在し、また内容成分同士の接触によってマトリックス保護成分に十分に包まれない内容成分粒子が存在するため第1胃での保護が困難である。
【0004】
特開平4−11847号公報では内容成分を充分に保護するためには製剤中の保護成分の割合を増やし、内容成分の含量として5〜30%(保護成分は70〜95%)が好ましいと記載されている。保護成分の比率が極めて高く、第4胃で放出されなかった内容成分は小腸へ入っても、小腸以降は中性であるために、キトサンの膨潤が進行せず、内容成分が放出、消化吸収されない。
【0005】
また、内容成分を含んだ芯剤を被覆する方法については、特開平5−192096号公報、特開昭63−317050号公報、特開平3−65145号公報などが見られる。
【0006】
特開平5−192096号公報では、製剤の粒子径、第1胃での保護剤としての脂質の被膜厚、保護剤の組成を総合的に判断し、保護剤と第4胃以降の溶出補助促進の目的に使われる成分の配合割合、さらには被膜厚を20ミクロン〜300ミクロンに限定することを提案している。しかし、この範囲の被膜厚であっても第3胃を通過できる粒子の直径を考慮すると、芯剤100重量部に対して被膜保護剤はおおよそ50重量部を超える。保護剤の被膜厚はこの範囲に限らず、薄いほど内容物の含量を増やしたり、第4胃以降の消化吸収が容易になりやすいが、脂質を主成分とした一層の被膜で上記被膜厚範囲以下の厚さで、第1胃内において保護することは不可能である。
【0007】
特開昭63−317050号公報では、内容成分を含んだ芯剤を第一被覆層として中性ないしアルカリ性の水に不溶でかつ酸性の水に易溶性な被膜の上を第二被覆層として乳化剤を含んだ固体脂質で被覆するものである。第一被覆層は酸性である第4胃で易溶性になるが、第二被覆層は特に小腸において乳化剤の影響によって内容成分の放出を促進するとされる。すなわち、第二被覆が崩壊する小腸ではpHが中性付近であることから、その内部の第一被覆は水に難溶となってしまい、本来の目的が充分に達成できない可能性がある。
【0008】
また、特開平3−65145号公報では、過去のpH感受性の合成成分で構成された保護剤の使用提案に対して、pHに関係なく利用できる被覆剤としてツェインを使用することを提案している。ツェインと疎水性物質、随意に水不溶性重合体および少なくとも一種の無機充填剤と組み合わされた組成物で芯剤を被覆するもので、第1胃では安定で、第四胃から回腸の間で分泌される酵素によって小腸中で分解されることが示されている。しかしながらツェインを被覆した細粒は水に触れることによってツェインが膨潤し、粒子同士がお互いに接することで粒子が付着し合い、団粒を形成して第2胃以降特に第3胃を通過することができない。また、ツェインは膨潤する事によって透湿性が高まってしまう。このため結果的には製剤が崩壊し内容成分が反芻胃の微生物によって分解される。
【0009】
【発明が解決しようとする課題】
本発明は反芻動物の第1胃中では安定で、第4胃以降の消化器官で飼料成分、飼料添加物および/または動物薬などの反芻動物に対して有効な成分を放出することができる飼料用製剤の提供を目的とする。
【0010】
【課題を解決するための手段】
本発明者らは内容成分を含む芯剤をプロラミンを主成分とする被膜で覆い、さらにその上に、反芻胃内の温度で実質的に固体である脂質成分で被覆することで、保護物質の比率を低減することができること、すなわち、被膜の厚さを薄くすることができることを見いだし、これによって第1胃で安定で、第4胃以降小腸で消化され内容成分を放出できることにより、本発明を完成した。プロラミンは、小麦やトウモロコシに含まれ、70%エタノールに可溶なタンパク質である。
【0011】
本発明は、反芻動物に対して有効な成分を主成分とする芯剤、芯剤を被覆するプロラミンを主成分とする被膜、およびさらにその上を被覆する反芻胃内の温度で実質的に固体である脂質成分の被膜で構成されることを特徴とする反芻動物飼料用製剤である。
【0012】
本発明において、芯剤の主成分は、飼料成分、飼料添加物、動物薬などの反芻胃内部の微生物によって分解される反芻動物に対して有効な成分であれば何でもよい。具体的には反芻胃内部の微生物によって分解される反芻動物に対して有効な成分であり、例えば、穀物粉末、穀物タンパク濃縮物、動物タンパク、糖類、油脂などの飼料成分、リジン、メチオニンなどのアミノ酸類やその誘導体、ビタミン類などの飼料添加物および抗生物質、虫下し、ホルモンなどの動物薬などが例示される。
【0013】
これらの内容成分を芯剤として成形するには、そのもの自体あるいは結着剤や賦形剤を配合して造粒、整粒などの方法によってつくることができる。粒子の大きさは第3胃の通過性から動物によって異なるが2〜5mm以下、被膜の厚さと被覆の作業性から0.2mm以上が望ましい。
結着剤としてはヒドロキシプロピルセルロース、カルボキシメチルセルロースなどのセルロース誘導体、アラビアガム、グアーガムなどの天然増粘剤、プロラミンタンパクなど接着性成分などが例示される。
賦形剤は内容成分と粒子の成形性を考慮して澱粉、タンパク質などを例示できる。賦形剤、結着剤でかつ芯剤の硬度、内容成分の徐放性を付与するためにコーングルテンミールなどのプロラミン含有成分は良好な成分として挙げられる。
【0014】
第一層の被膜成分としてはプロラミンを主成分とするものを用いる。ツェインはトウモロコシに含まれるプロラミンであり、含水エタノール等、含水イソプロパノール、含水アセトン等で抽出され、分子量約21,000〜25,000のポリペプチドで、疎水性の高いタンパク質である。ツェインは水に溶けないが、微生物や腸内酵素で酵素分解される。
第一層の被膜成分の主成分以外のその他の成分としては、モノカルボン酸、セルロース誘導体、グリセリン脂肪酸エステル、主に炭素数8〜10の脂肪酸よりなる中鎖トリグリセリド、リン脂質、リン酸カルシウム、タルク、シリカ樹脂などが挙げられる。これらはプロラミンで芯剤を被覆するための作業性を向上したり、被膜の耐水性を調節する目的で添加する。
【0015】
芯剤の被膜には様々な流動層コーティング装置が利用できる。
第一層成分の被覆は、プロラミンを主成分とする被覆成分を溶解または分散し、流動層コーティング装置など、細粒を被覆する装置で行うことができる。溶解または分散に用いる溶媒としては被覆成分が溶解または分散する溶媒で、かつ飼料添加物の製造に利用できるものであれば使用が可能である。例えば水、アルカリ水、水性アルコール、グリコール類などが挙げられる。例えば、被覆成分を水性エタノールなどの溶液として、固形分濃度として4%〜25%程度として噴霧コーティングすることが望ましい。
【0016】
第二層の被膜成分としては水素添加動植物脂、炭素数12〜24のモノカルボン酸、ロウ、ワックスなどを主成分とする。必要に応じて、レシチン、脂肪酸グリセリンエステル、キトサンなどを少量添加して第4胃以降での被膜を物理的、化学的に崩壊する必要がある。第二層成分の被覆は第一層と同等に溶液として噴霧コーティングしたり、粉末状の脂質を加え混合攪拌してコーティングしたり、加熱溶融した脂質を噴霧や攪拌混合によって被覆するなどの方法が例示できる。この様にして得られる被膜構造および粒子は実質的に人の腸溶性製剤としての要件も満たしている。
【0017】
【実施例】
以下に本発明を実施例および比較例によって例証するが、本発明の範囲を限定するものでは無い。
【0018】
反芻胃通過性および第4胃以降での放出性は以下の方法で評価した。
評価1:反芻胃の通過性はpH6の緩衝液100mlを200ml容の三角フラスコにとり、製剤1gを加えロータリーシェーカーで250rpmで攪拌し、24時間後溶出した水溶性成分の比率を求めた。評価2:第4胃での放出性は評価1を終了した製剤を評価1と同様にpH2の
緩衝液での水溶性成分の溶出比率を求めた。
評価3:腸での放出性は評価2を終了した製剤を評価1と同様にpH7の緩衝液に牛の膵臓酵素、分泌成分および小腸酵素を添加した溶液での水溶
性成分の溶出比率を求めた。
評価2で溶出した成分および評価3で溶出した成分の合計が実質的に牛によって利用される成分を示している。
【0019】
以下の皮膜成分を皮膜した%の表示は、芯剤を100%とした場合の外掛けで表示した。
【0020】
実施例1、比較例1、2、3
同一被膜厚での第一胃保護性の比較試験
水溶性の赤色色素、乳糖およびカルボキシメチルセルロースを配合し、加湿押し出し造粒後、整粒機で形状を丸くしてから、送風乾燥して芯剤を調整した。芯剤の直径は約2mmで、これに水性エタノール(90容量%)90重量部、ツェイン10重量部およびモノカルボン酸として大豆脂肪酸1重量部を含む溶液を塗布し被膜を形成させた。続いて融点60℃の脂質100重量部およびレシチン5重量部を加熱融解し、塗布し被膜を形成させた。
被膜の量と評価結果を表1に示す。被膜の量は芯剤に対する被膜固形物の量を示している。
【0021】
【表1】

Figure 0003736775
【0022】
ツェインを第一層、脂質を第二層とすることで、他の組み合わせと比べ、第一胃を想定した模擬実験評価では内容成分の溶出が抑えられた。外観の観察上で粒子に以下の変化がみられた。比較例1では粒子どうしが集合し、団子状の塊となった。比較例3ではツェイン皮膜のはがれがみられた。
【0023】
実施例2、3、比較例4
反芻胃通過性(評価1)および第4胃以降での放出性評価(評価2:第4胃および評価3:腸)
メチオニンとカルボキシメチルセルロースを配合し、加湿押しだし造粒後、整粒機で形状を丸くしてから、送風乾燥して芯剤を調整した。芯剤の直径は約0.7mmで、これに水性エタノール(90容量%)90重量部、ツェイン10重量部およびモノカルボン酸として大豆脂肪酸1重量部を含む溶液を塗布し被膜を形成させた。続いて融点60℃の脂質100重量部、キトサン5重量部およびレシチン3重量部を加熱融解し、塗布し被膜を形成させた。
被膜の量と評価結果を表2に示す。被膜の量は芯剤に対する被膜固形物の量を示している。
【0024】
【表2】
Figure 0003736775
【0025】
実施例では反芻胃を同等に保護通過する被膜厚の場合、第4胃以降での有効成分の放出を十分に行うことができる。実施例2および3では実質的に牛が利用できる成分は評価2および評価3の合計、すなわち70〜80%である。一方比較例ではおおよそ3倍程度の皮膜厚さにもかかわらず、評価1(第一胃)での溶出は実施例よりも多く、しかも評価2と評価3の合計は実施例の半分しか溶出していない。
【0026】
実施例4
ツェイン含有タンパク組成物50部とリジン50部を混合し、水性エタノール50部を加え、成形、乾燥した。これに水性エタノール(84容量%)90重量部、ツェイン10重量部および大豆脂肪酸2重量部を含む溶液を塗布し被膜を形成させた。続いて融点60℃の脂質100重量部、キトサン5重量部およびレシチン3重量部を加熱融解し、塗布し被膜を形成させた。
被膜の量と評価結果を表3に示す。
【0027】
【表3】
Figure 0003736775
【0028】
芯の賦形剤としてツェイン含有蛋白質を利用すると評価1(反芻胃)での溶出が抑えられる。
【0029】
【発明の効果】
反芻動物の第1胃中では安定で、第4胃以降の消化器官で飼料成分、飼料添加物および/または動物薬などの反芻動物に対して有効な成分を放出することができる飼料用製剤を提供することができる。[0001]
[Industrial application fields]
The present invention relates to ruminant feed formulations such as feed ingredients, feed additives and / or veterinary drugs. More specifically, the present invention releases components that are stable in the rumen of the ruminant and effective against ruminants such as feed ingredients, feed additives and / or veterinary drugs in the digestive organs after the fourth stomach. The present invention relates to a feed formulation.
[0002]
[Prior art]
In ruminants such as cattle and sheep, even if biologically active substances (hereinafter referred to as “content components”) such as feed nutrients and additives and veterinary drugs are administered, they are largely affected by microorganisms in the rumen. The parts are broken down and are not absorbed as they are.
[0003]
Therefore, various devices have been proposed in which these content components are digested and absorbed in the fourth and subsequent stomachs without being decomposed by the microorganisms in the first stomach. As a method for preventing them from being decomposed in the rumen, the content component is retained in the preparation in the rumen. For example, in U.S. Pat. No. 4,533,557 (JP-B-2-12544, JP-A-58-175449), as a matrix protective component, at least one of hardened oils and fats, monocarboxylic acid, chitosan and content components are mixed. Granularly molded into a matrix type preparation. In the matrix type preparation, the content components are also present in the vicinity of the surface, and there are content component particles that are not sufficiently encapsulated by the matrix protective components due to the contact between the content components, so that it is difficult to protect in the rumen.
[0004]
In JP-A-4-11847, in order to sufficiently protect the content component, the ratio of the protective component in the preparation is increased, and the content component content is preferably 5 to 30% (the protective component is 70 to 95%). Has been. The proportion of the protective component is extremely high, and the content component that was not released in the rumen is neutral after the small intestine, so the chitosan does not swell and the content component is released and digested and absorbed. Not.
[0005]
As methods for coating the core containing the content component, JP-A-5-192096, JP-A-63-317050, JP-A-3-65145 and the like can be seen.
[0006]
In JP-A-5-192096, the particle size of the preparation, the film thickness of the lipid as a protective agent in the rumen, and the composition of the protective agent are comprehensively determined, and the dissolution aid is promoted after the protective agent and the fourth stomach. It is proposed to limit the blending ratio of the components used for the above purpose, and further the film thickness to 20 microns to 300 microns. However, in consideration of the diameter of particles that can pass through the third stomach even with a film thickness in this range, the coating protective agent exceeds approximately 50 parts by weight with respect to 100 parts by weight of the core. The film thickness of the protective agent is not limited to this range, but the thinner the content, the easier the digestion and absorption after the 4th stomach becomes easier. It is impossible to protect in the rumen with the following thickness:
[0007]
In JP-A-63-317050, a core containing a content component is used as a first coating layer and an emulsifier as a second coating layer on a coating that is insoluble in neutral or alkaline water and easily soluble in acidic water. It coats with the solid lipid containing. While the first coating layer is readily soluble in the acidic rumen, the second coating layer is said to promote the release of the content components by the influence of the emulsifier, particularly in the small intestine. That is, since the pH of the small intestine in which the second coating is disintegrated is near neutral, the first coating inside thereof is hardly soluble in water, and the original purpose may not be sufficiently achieved.
[0008]
In addition, Japanese Patent Laid-Open No. 3-65145 proposes to use zein as a coating agent that can be used regardless of pH, in contrast to the proposal of using a protective agent composed of past pH-sensitive synthetic components. . The core is coated with a composition combined with zein and a hydrophobic substance, optionally a water-insoluble polymer and at least one inorganic filler, stable in the rumen and secreted between the rumen and ileum. It has been shown to be degraded in the small intestine by However, the fine particles coated with zein swell when touched with water, and when the particles come into contact with each other, the particles adhere to each other and form aggregates that pass through the second stomach, especially the third stomach. I can't. In addition, zein swells to increase moisture permeability. As a result, the preparation collapses and the content components are degraded by ruminant microorganisms.
[0009]
[Problems to be solved by the invention]
The present invention is a feed that is stable in the rumen of ruminants and can release effective components for ruminants such as feed components, feed additives and / or veterinary drugs in the digestive organs after the fourth stomach. The purpose is to provide pharmaceutical preparations.
[0010]
[Means for Solving the Problems]
The inventors of the present invention have covered the core containing the content component with a coating containing prolamin as a main component, and further coated with a lipid component that is substantially solid at the temperature in the rumen, thereby providing a protective substance. It has been found that the ratio can be reduced, i.e., that the thickness of the coating can be reduced, whereby it is stable in the rumen, and can be digested in the small intestine after the fourth stomach to release the content components. completed. Prolamin is a protein that is contained in wheat and corn and is soluble in 70% ethanol.
[0011]
The present invention relates to a core composed mainly of a component effective against ruminants, a coating composed mainly of prolamin that coats the core, and a solid that is substantially solid at the temperature in the ruminant covering the core. It is a preparation for ruminant feed, characterized in that it is composed of a lipid component coating.
[0012]
In the present invention, the main component of the core may be any component that is effective against ruminants that are degraded by microorganisms inside the rumen, such as feed components, feed additives, and animal drugs. Specifically, it is an effective ingredient for ruminants that are decomposed by microorganisms inside the rumen, such as feed ingredients such as cereal powder, cereal protein concentrate, animal protein, saccharides, fats and oils, lysine, methionine, etc. Examples include feed additives such as amino acids and derivatives thereof, vitamins, and antibiotics, insecticides, animal drugs such as hormones, and the like.
[0013]
In order to mold these content components as a core, it can be prepared by a method such as granulation or sizing by mixing itself or a binder or excipient. The particle size differs depending on the animal from the passage through the third stomach, but is preferably 2 to 5 mm or less, and preferably 0.2 mm or more from the thickness of the coating and the workability of the coating.
Examples of the binder include cellulose derivatives such as hydroxypropylcellulose and carboxymethylcellulose, natural thickeners such as gum arabic and guar gum, and adhesive components such as prolamin protein.
Examples of the excipient include starch and protein in consideration of the content components and the moldability of the particles. Prolamin-containing components such as corn gluten meal are listed as good components in order to provide excipients, binders, core hardness, and sustained release of the content components.
[0014]
As the first-layer coating component, a component mainly composed of prolamin is used. Zein is a prolamin contained in corn, is a polypeptide having a molecular weight of about 21,000 to 25,000, extracted with water-containing ethanol, water-containing isopropanol, water-containing acetone, and the like, and is a highly hydrophobic protein. Zein does not dissolve in water, but it is degraded by microorganisms and intestinal enzymes.
As other components other than the main component of the first layer coating component, monocarboxylic acid, cellulose derivative, glycerin fatty acid ester, medium chain triglyceride mainly composed of fatty acids having 8 to 10 carbon atoms, phospholipid, calcium phosphate, talc, Examples thereof include silica resin. These are added for the purpose of improving workability for coating the core with prolamin or adjusting the water resistance of the coating.
[0015]
Various fluidized bed coating apparatuses can be used for the coating of the core agent.
The coating of the first layer component can be performed by an apparatus for coating fine particles such as a fluidized bed coating apparatus by dissolving or dispersing a coating component mainly composed of prolamin. As the solvent used for the dissolution or dispersion, any solvent that can dissolve or disperse the coating component and can be used for the production of feed additives can be used. Examples thereof include water, alkaline water, aqueous alcohol, glycols and the like. For example, it is desirable that the coating component is spray-coated as a solution such as aqueous ethanol with a solid content concentration of about 4% to 25%.
[0016]
The coating component of the second layer is mainly composed of hydrogenated animal and vegetable fats, monocarboxylic acids having 12 to 24 carbon atoms, wax, wax and the like. If necessary, it is necessary to physically and chemically disintegrate the film in the fourth and subsequent stomachs by adding a small amount of lecithin, fatty acid glycerin ester, chitosan and the like. The coating of the second layer component can be carried out by spray coating as a solution equivalent to the first layer, coating by adding powdered lipids and mixing and stirring, or coating the heated and melted lipids by spraying or stirring and mixing. It can be illustrated. The coating structure and particles thus obtained substantially satisfy the requirements for human enteric preparations.
[0017]
【Example】
The present invention is illustrated below by examples and comparative examples, but is not intended to limit the scope of the present invention.
[0018]
The rumen passage ability and the release ability after the fourth stomach were evaluated by the following methods.
Evaluation 1: The rumen passability was determined by taking 100 ml of a pH 6 buffer solution in a 200 ml Erlenmeyer flask, adding 1 g of the preparation, stirring the mixture at 250 rpm with a rotary shaker, and determining the ratio of the water-soluble components eluted after 24 hours. Evaluation 2: For the release property in the fourth stomach, the elution ratio of the water-soluble component in the pH 2 buffer solution was determined in the same manner as in Evaluation 1 for the preparation for which evaluation 1 was completed.
Evaluation 3: Release in the intestine was determined for the dissolution ratio of the water-soluble component in a solution obtained by adding bovine pancreatic enzyme, secretory component, and small intestine enzyme to a pH 7 buffer solution in the same manner as in Evaluation 1 It was.
The sum of the components eluted in Evaluation 2 and the components eluted in Evaluation 3 substantially represents the components used by the cow.
[0019]
The% of the following film components coated is indicated by the outer coating when the core agent is 100%.
[0020]
Example 1, Comparative Examples 1, 2, 3
Comparison test of rumen protection with the same film thickness Water-soluble red pigment, lactose and carboxymethylcellulose are blended, and after humidified extrusion granulation, the shape is rounded with a granulator, then blown and dried to produce a core agent Adjusted. The diameter of the core agent was about 2 mm, and a solution containing 90 parts by weight of aqueous ethanol (90% by volume), 10 parts by weight of zein and 1 part by weight of soybean fatty acid as a monocarboxylic acid was applied thereto to form a film. Subsequently, 100 parts by weight of a lipid having a melting point of 60 ° C. and 5 parts by weight of lecithin were heated and melted and applied to form a film.
The amount of coating and the evaluation results are shown in Table 1. The amount of coating indicates the amount of coating solids relative to the core.
[0021]
[Table 1]
Figure 0003736775
[0022]
By using the zein as the first layer and the lipid as the second layer, elution of the content components was suppressed in the simulation experiment assuming the rumen as compared to other combinations. The following changes were observed in the particles when the appearance was observed. In Comparative Example 1, the particles gathered to form a dumpling lump. In Comparative Example 3, peeling of the zein film was observed.
[0023]
Examples 2 and 3 and Comparative Example 4
Ruminal permeability (Evaluation 1) and release evaluation after the 4th stomach (Evaluation 2: 4th stomach and Evaluation 3: Intestine)
Methionine and carboxymethyl cellulose were blended, and after humidified extrusion granulation, the shape was rounded with a granulator and then blown and dried to prepare a core agent. The diameter of the core agent was about 0.7 mm, and a solution containing 90 parts by weight of aqueous ethanol (90% by volume), 10 parts by weight of zein and 1 part by weight of soybean fatty acid as a monocarboxylic acid was applied thereto to form a film. Subsequently, 100 parts by weight of a lipid having a melting point of 60 ° C., 5 parts by weight of chitosan and 3 parts by weight of lecithin were melted by heating and applied to form a film.
The amount of coating and the evaluation results are shown in Table 2. The amount of coating indicates the amount of coating solids relative to the core.
[0024]
[Table 2]
Figure 0003736775
[0025]
In the embodiment, in the case of a film thickness that equally passes through the rumen, the active ingredient can be sufficiently released from the fourth stomach. In Examples 2 and 3, the component that can be substantially used by the cow is the sum of Evaluation 2 and Evaluation 3, that is, 70 to 80%. On the other hand, in the comparative example, although the film thickness is about 3 times, the elution in the evaluation 1 (ruminal) is more than that in the example, and the sum of the evaluation 2 and the evaluation 3 is only half of the example. Not.
[0026]
Example 4
50 parts of the zein-containing protein composition and 50 parts of lysine were mixed, 50 parts of aqueous ethanol was added, and the mixture was molded and dried. A solution containing 90 parts by weight of aqueous ethanol (84% by volume), 10 parts by weight of zein and 2 parts by weight of soybean fatty acid was applied thereto to form a film. Subsequently, 100 parts by weight of a lipid having a melting point of 60 ° C., 5 parts by weight of chitosan, and 3 parts by weight of lecithin were heated and melted and applied to form a film.
The amount of coating and the evaluation results are shown in Table 3.
[0027]
[Table 3]
Figure 0003736775
[0028]
When a zein-containing protein is used as a core excipient, elution in evaluation 1 (ruminal) is suppressed.
[0029]
【The invention's effect】
A feed preparation that is stable in the rumen of ruminants and can release effective ingredients for ruminants such as feed ingredients, feed additives and / or veterinary drugs in the digestive organs after the fourth stomach. Can be provided.

Claims (4)

反芻動物に対して有効な成分を主成分とする芯剤、芯剤を被覆するプロラミンを主成分とする被膜、およびさらにその上を被覆する反芻胃内の温度で実質的に固体である脂質成分の被膜で構成されることを特徴とする反芻動物飼料用製剤。A core agent mainly composed of an ingredient effective against ruminants, a film mainly composed of prolamin for coating the core agent, and a lipid component which is substantially solid at a temperature in the rumen covering the core. A ruminant feed preparation characterized by comprising a coating of プロラミンがツェインである請求項1の反芻動物飼料用製剤。The preparation for ruminant feed according to claim 1, wherein the prolamin is zein. 芯剤の主成分が、飼料成分、飼料添加物および/または動物薬である請求項1または2の反芻動物飼料用製剤。The preparation for ruminant feed according to claim 1 or 2, wherein the main component of the core is a feed ingredient, a feed additive and / or an animal drug. 飼料添加物がアミノ酸である請求項3の反芻動物飼料用製剤。The preparation for ruminant feed according to claim 3, wherein the feed additive is an amino acid.
JP22179396A 1996-08-05 1996-08-05 Ruminant feed formulation Expired - Fee Related JP3736775B2 (en)

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