JP3996528B2 - Binder for solid feed and solid feed using the same - Google Patents

Description

【００１７】
上記における水分値は、ＣＭＣ塩約２ｇを秤量ビンに精密に計り取り、１０５±０．２℃の乾燥器中において２時間乾燥させ、乾燥による減量から次式により求められる。
【００１８】
【数２】

【００１９】
また、上記エーテル化度は、ＣＭＣ塩約１ｇを精密に計り取り、磁性ルツボ中で灰化し、冷却後、ルツボを５００ｍｌビーカに移して、Ｎ／１０硫酸５０ｍｌと水約２５０ｍｌを加えて３０分間煮沸し、冷却後、過剰の酸をＮ／１０水酸化カリウムで逆滴定した結果から、次式により求められる。
【００２０】
【数３】

上記式中、ＢはＮ／１０硫酸の使用量（ｍｌ）、ＳはＮ／１０水酸化カリウムの滴定量（ｍｌ）、ｆはＮ／１０硫酸の力価、ｆ_１はＮ／１０水酸化カリウムの力価を示す。
【００２１】
本発明で用いる上記した特定のエーテル化度及び１％水溶液粘度を有するＣＭＣ塩は、例えば、従来公知の方法でＣＭＣ塩を製造し、これより所望のエーテル化度及び１％水溶液粘度を有するＣＭＣ塩を分別することにより得ることができる。
【００２２】
ＣＭＣ塩としては、ナトリウム塩（以下、「ＣＭＣ−Ｎａ」と表記する）を用いる。
【００２３】
ＰＶＰは、Ｎ−ビニル−２−ピロリドンの重合体であり、Ｋ値がおよそ１５〜１０３のものが市販されているのでこれらを用いることができるが、Ｋ値は１５〜４０の範囲内であることが好ましく、２０〜３０の範囲内がさらに好ましい。ここで、Ｋ値とは、ドイツの化学者フィケンチャーにより提案された重合度を表わす定数であり、特に天然高分子の溶液について広い範囲で成立する。
【００２４】
ＰＶＰのＫ値は以下の測定方法によって求めることができる。Ｋ値が２０未満である場合には、５％（ｇ／１００ｍｌ）溶液の粘度を測定し、Ｋ値が２０以上である場合には、１％（ｇ／１００ｍｌ）溶液の粘度を測定する。試料濃度は、乾燥物換算する。従ってＫ値が２０未満の場合は試料５．０ｇ、Ｋ値が２０以上の場合は試料１．０ｇを精密に計り取り、１００ｍｌのメスフラスコに入れ、室温で蒸留水を加え、振とうしながら完全に溶かして蒸留水を加えて正確に１００ｍｌとする。この試料溶液を恒温槽（２５±０．２℃）で３０分間放置後、ウベローデ型粘度計を用いて測定する。溶液が２つの印線の間を流れる時間を測定する。数回測定し、平均値をとる。相対粘度を規定するために、蒸留水についても同様に測定する。得られた２つの流動時間をHagenbach-Couetteの補正値に基づいて補正する。
【００２５】
【数４】

上記式中、Ｚは濃度Ｃの溶液の相対粘度（ηrel）、Ｃは濃度（％：ｇ／１００ｍｌ）を示し、相対粘度ηrelは次式より得られる；
ηrel＝（溶液の流動時間）÷（水の流動時間）
【００２６】
ＰＶＰは、飼料の造粒性、成形性を向上させ、粉化率を低下させるのに寄与する。上記のように、ＰＶＰのうちからＫ値の低いものを用いることにより、飼料に湿潤性をもたせつつ、粘着性を抑える効果が得られる。
【００２７】
ＰＶＰの具体例としては、例えばＢＡＳＦ社製のＬｕｖｉｓｋｏｌ Ｋ−１７（パウダー、Ｋ値１５〜１９、１０％水溶液のｐＨ３．０〜７．０）、Ｌｕｖｉｓｋｏｌ Ｋ−３０（パウダー、Ｋ値２７〜３３、１０％水溶液のｐＨ３．０〜７．０）、Ｌｕｖｉｓｋｏｌ Ｋ−８０（パウダー、Ｋ値７４〜８２、１０％水溶液のｐＨ５．０〜８．０）、Ｌｕｖｉｓｋｏｌ Ｋ−９０（パウダー、Ｋ値８８〜９６、１０％水溶液のｐＨ５．０〜９．０）、Ｌｕｖｉｓｋｏｌ Ｋ−３０（約３０％溶液、Ｋ値２７〜３３、１０％水溶液のｐＨ７．０〜９．０）、Ｌｕｖｉｓｋｏｌ Ｋ−６０（約４５％溶液、Ｋ値５２〜６２、１０％水溶液のｐＨ７．０〜９．０）、Ｌｕｖｉｓｋｏｌ Ｋ−８５（約２０％溶液、Ｋ値８３〜８８、１０％水溶液のｐＨ７．０〜９．０）、Ｌｕｖｉｓｋｏｌ Ｋ−９０（約２０％溶液、Ｋ値９０〜１０３、１０％水溶液のｐＨ７．０〜９．０）等が挙げられる。これらは１種を単独で用いてもよく、２種以上を組み合わせて用いてもよい。これらの中では、Ｌｕｖｉｓｋｏｌ Ｋ−３０が好ましいＫ値をもつことから好適に用いられる。
【００２８】
本発明の粘結剤は、上記ＣＭＣ塩とＰＶＰとを、ＣＭＣ塩：ＰＶＰ＝５０：５０〜８５：１５（重量％）の配合比率で配合することにより得られる。ＣＭＣ塩の配合割合が８５％を超えると湿潤性が低下し、５０％未満になると充分な粘結性が保持できない。
【００２９】
本発明の粘結剤は、生餌を配合しない、魚粉、デンプン等を主成分とする飼料原料を造粒成形する際に、飼料原料１００重量部（以下、部という）に対して、０．２〜１０部、好ましくは０．５〜３部添加する。本発明の粘結剤の使用により、造粒性及び成形性の向上、造粒成形された固形飼料の粉化率の低下等の効果を達成することができる。添加量が０．２部より少ないと、上記効果が充分に得られず、１０部を超えるとコスト的に不利になる。
【００３０】
なお、本発明の粘結剤には、従来より飼料添加物として使用されている、グアガム、アルギン酸ソーダ等の水溶性高分子化合物を適宜配合して使用することも可能である。
【００３１】
上記生餌を配合しない、魚粉、デンプン等を主成分とする飼料原料の例としては、魚粉を２０％以上含み、大豆粕、米ぬか、ビタミン類、ミネラル類、その他の飼料用粉末原料等を８０％以下含む飼料原料が挙げられる。魚粉は、５０〜１００％、その他の原料は５０％以下の割合で配合されることが多い。
【００３２】
生餌を配合しないのは、それ自体が変質し易く、また、それを含有させることにより固形飼料も変質し易くなるためである。
【００３３】
魚粉は、代表的な動物性蛋白質源であり、例えば養魚用飼料として多く使用され、ホワイトフィッシュミール、ブラウンフィッシュミールの２種類に大別される。本発明では、このような従来から使用されている魚粉を特に制限なく使用することができる。
【００３４】
デンプンも特に限定されないが、例としては、小麦粉、米粉、トウモロコシデンプン、米ぬか、大豆粕等が挙げられる。
【００３５】
その他の飼料用粉末原料としては、魚粉以外の動物性原料や植物性原料が適宜使用される。動物性原料としては、肉粉、骨粉、フェザーミール、血粉、脱脂粉乳、オキアミミール、イカミール等が挙げられ、植物性原料としては、油粕、穀類、大豆粉、グルテンミール等が挙げられる。
【００３６】
本発明の粘結剤を配合した飼料原料を造粒成形し、固形飼料にする際に用いられる造粒装置としては、一般のモイストペレッターも使用できるが、少量の水の添加でのペレット化が好ましい点から、半乾式又は低水分造粒機、ディスク・ペレッター等が好適に用いられる。
【００３７】
例えば、通常のディスク・ペレッターを用いた造粒成形方法の例としては、次のような方法が挙げられる。
【００３８】
（１）粘結剤を均一に配合した飼料原料をディスク・ペレッターに仕込む；
（２）必要量の水（通常、飼料原料１００部に対して５〜２８部）を添加し、混練しながら、飼料原料を均一にする。飼料中の油分が不足している場合には、水を添加後、フィールドオイル等を添加してもよい（フィールドオイルを添加する場合は、通常、飼料原料１００部に対して５〜２０部が好ましい）；
（３）ディスク・ペレッター中で均一に混練することにより、ディスク・ダイによりペレットが造粒される；
（４）造粒されたペレットの揮発分は、通常５〜１０％であるが、１０％を超える場合は乾燥器にかけ、乾燥させる；
（５）揮発分を調整後、フルイ処理して粉化物を除去し、ペレットを仕上げる。
【００３９】
【実施例】
次に、本発明の固形飼料用粘結剤及び固形飼料を、実施例に基づいてさらに詳細に説明するが、本発明はこれに限定されるものではない。
【００４０】
［実施例１〜３２，比較例１〜２４］
粘結剤として、表１〜４に示したエーテル化度及び１％水溶液粘度（表中では単に「粘度」と記載）を有するＣＭＣ−Ｎａ塩と、ＰＶＰ（ＢＡＳＦ社製ＬＵＶＩＳＫＯＬ Ｋ−３０、Ｋ値３０）とを表に示した配合率で配合したものを用い、以下の飼料原料の処方、及びハードペレットの造粒成形方法に従い、ハードペレットを調製した。なお、ディスク・ペレッターは、不二パウダル（株）製の低水分造粒機Ｆ−５／１１−１７５型（ディスクダイ８ｍｍφ）を用いた。
【００４１】
［飼料原料の処方］
魚粉 ５０部
小麦粉 ３５部
脱脂大豆粕 ８部
ビール酵母粕 ７部
［ハードペレットの造粒成形方法］
１．飼料原料１．５ｋｇと所定量の粘結剤とをディスク・ペレッターに仕込み、撹拌を行いながら所定量の水を添加する；
２．上記仕込み物を均一に混練する。これにより、ダイ口よりペレットが押し出される；
３．得られたペレット及びペレット化できなかった粉化物を合わせて乾燥し、揮発分を５〜１０％に調整する；
４．篩（１０メッシュ）で処理してペレットのみを集める。
【００４２】
各実施例及び比較例における、試料原料１００部に対する粘結剤及び水の添加量は以下の通りである；
実施例１〜８、比較例１〜６：粘結剤０．５部、水２５部
実施例９〜１６、比較例７〜１２：粘結剤０．５部、水１０部
実施例１７〜２４、比較例１３〜１８：粘結剤３部、水２５部
実施例２５〜３２、比較例１９〜２４：粘結剤３部、水１０部
【００４３】
上記各実施例及び比較例により得られたハードペレットを以下の方法で評価した。結果を表１〜４に示す。
【００４４】
１．揮発分
得られた乾燥前のペレット（上記造粒成形方法における工程２を終えた段階）を約５０ｇ採取し、１０５℃で３時間加熱乾燥して減量を求め、次式により揮発分を求めた。
【００４５】
【数５】

【００４６】
２．粉化率
ディスク・ペレッターを通ったペレットと粉化物（上記造粒成形方法における工程３を終えた段階）の合計重量（ｇ）を測定し、次に１０メッシュ篩にかけたパス重量（ｂ）を測定し、次式によりペレット造粒成形時の粉化率を求めた。
【００４７】
【数６】

【００４８】
３．ペレットの耐久性
上記造粒成形方法における工程４を終えたペレット約５０ｇを採取して、Ｓｔｒｏｕｐの粉化率試験機にて１０分間回転させ、回転終了後、ペレットを取り出し、１０メッシュ篩にかけたパス重量（ｃ）を測定し、次式によりペレットの耐久性を求めた。
【００４９】
【数７】

【００５０】
４．ペレットの外観
上記造粒成形方法における工程４を終えたペレットの状態を目視で確認し、次の基準で評価した。
【００５１】
◎：艶があり、切り口が揃い、形状にバラツキのないきれいなペレット
○：艶があり、切り口が揃ったペレット
△：艶がやや不足し、切り口が不揃いのペレット
×：艶がなく、ペレットの長さの異なるペレット
【００５２】
【表１】

【００５３】
【表２】

【００５４】
【表３】

【００５５】
【表４】

【００５６】
【発明の効果】
本発明の固形飼料用粘結剤によれば、水分の添加量を抑えても、飼料原料の造粒時の歩留がよく、保形性、耐久性に優れた固形飼料が得られる。また、得られる固形飼料は、艶があり形状にバラツキがないなど、外観的にも優れたものとなる。さらに、本発明の粘結剤は、容易に飼料原料と均一に混合することができるという利点も有する。[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to a solid feed binder used for production of a solid feed for pets and the like, and a solid feed using the same.
[0002]
[Prior art and problems to be solved by the invention]
Pellet-shaped solid feed for pets, etc., is mainly made by compression-molding feed materials such as fish meal, starch, etc., but some remain as powder without being pelletized after compression molding. In addition, since the wettability is insufficient even when pelletized, the pellets are often broken and pulverized, resulting in low solid feed yield.
[0003]
In order to improve the problems in such a conventional compression-molded solid feed, a method of adding water or steam to the powder and moistening it and then compression-molding after kneading is employed.
[0004]
However, with this method, the above problem can be improved, but the moisture content of the pellets increases, and there is a problem that a long drying process is required, and the pelletized material is deformed and pulverized after drying. Or a problem in appearance such that the pellets are not glossy and the shapes are not uniform (cuts and lengths are not uniform, etc.).
[0005]
In order to solve these problems, attempts have been made to use carboxymethyl cellulose salt or the like as a binder. However, nothing has been obtained that solves all the above problems and gives satisfactory results.
[0006]
In view of this, the inventor of the present application discloses a binder composed of 70 to 90% by weight of carboxymethyl cellulose salt and 10 to 30% by weight of propylene glycol in Japanese Patent Application Laid-Open No. 2000-106827. The result is obtained. However, since propylene glycol is a liquid product, there is a manufacturing problem that a long period of stirring is required in order to uniformly mix with the powder feed raw material.
[0007]
The present invention has been made in view of the above-mentioned problems, can be uniformly mixed with the raw material in a short time, and has excellent shape retention and durability even when the amount of water added is small, and the gloss and shape of the pellets. An object of the present invention is to provide a solid feed binding agent from which a solid feed excellent in appearance can be obtained, and a solid feed using the same.
[0008]
[Patent Document 1]
Japanese Patent Laid-Open No. 2000-106828
[Means for Solving the Problems]
The solid feed binder of the present invention is a solid feed binder (hereinafter referred to as “solid feed binder”) that is blended when granulated and formed into a solid feed such as fish meal, starch, etc. In order to solve the above problems, the degree of etherification is 0.6 or more, and the viscosity of a 1% by weight aqueous solution is within the range of 10 to 500 mPa · s. A certain carboxymethylcellulose sodium salt (hereinafter referred to as “CMC salt”) and polyvinylpyrrolidone (hereinafter referred to as “PVP”) having a K value in the range of 15 to 40 are 50:50 to 85:15 (% by weight). It is blended at a ratio of 0.2 to 10 parts by weight with respect to 100 parts by weight of feed ingredients mainly composed of fish meal, starch, etc. 1).
[0012]
Chow of the present invention, raw not blended feed, fish meal, to feed the raw material 1 00 wt composed mainly of starch, 0.2 to 10 parts by weight of solid feed caking agent according to claim 1 It is assumed that it is formed by granulating and forming at a ratio of ( 2 ).
[0013]
DETAILED DESCRIPTION OF THE INVENTION
The CMC salt used in the present invention preferably has a degree of etherification of 0.6 or more, and more preferably in the range of 0.7 to 1.5. When the degree of etherification is less than 0.6, the caking property is insufficient, and the feed raw material cannot be caking sufficiently. Even if the degree of etherification exceeds 1.5, there is no problem in terms of physical properties and applications, but it is disadvantageous because of high production costs.
[0014]
The 1% aqueous solution viscosity is preferably 500 mPa · s or less, and more preferably in the range of 10 to 200 mPa · s. When the 1% aqueous solution viscosity exceeds 500 mPa · s, when water or water vapor is added to the feed material and kneaded, most of the water from the added water or water vapor is absorbed by the CMC due to the water absorption of CMC, The feed raw material cannot be sufficiently humidified and kneaded. On the other hand, when the viscosity is less than 10 mPa · s, the caking property is not sufficient, the durability of the pellet tends to be insufficient, and the powdering rate tends to increase.
[0015]
The viscosity of the above 1% aqueous solution is obtained by accurately measuring about 2.5 g of CMC salt, preparing a 1% aqueous solution of CMC salt converted to an anhydride by obtaining its moisture value, and allowing it to stand and dissolve completely for a whole day and night. , 25 ° C., viscosity determined by measuring at 60 rpm with a BM viscometer. Here, the amount of water of the 1% aqueous solution is obtained by the following equation.
[0016]
[Expression 1]

[0017]
The moisture value in the above is obtained by accurately measuring about 2 g of CMC salt in a weighing bottle, drying it in a dryer at 105 ± 0.2 ° C. for 2 hours, and calculating from the weight loss by drying according to the following formula.
[0018]
[Expression 2]

[0019]
The degree of etherification was precisely measured by weighing about 1 g of CMC salt, ashing in a magnetic crucible, cooling, transferring the crucible to a 500 ml beaker, adding 50 ml of N / 10 sulfuric acid and about 250 ml of water for 30 minutes. It is calculated | required by following Formula from the result which boiled and cooled and titrated the excess acid with N / 10 potassium hydroxide after cooling.
[0020]
[Equation 3]

In the above formula, B is the amount of N / 10 sulfuric acid used (ml), S is the titration amount of N / 10 potassium hydroxide (ml), f is the titer of N / 10 sulfuric acid, and f ₁ is N / 10 hydroxylated. Shows the potency of potassium.
[0021]
The CMC salt having the above-mentioned specific degree of etherification and 1% aqueous solution viscosity used in the present invention is, for example, a CMC salt produced by a conventionally known method, from which a CMC having a desired degree of etherification and 1% aqueous solution viscosity It can be obtained by fractionating the salt.
[0022]
As the CMC salt, a sodium salt (hereinafter referred to as “CMC-Na”) is used .
[0023]
PVP is a polymer of N-vinyl-2-pyrrolidone, and those having a K value of about 15 to 103 can be used because they are commercially available, but the K value is in the range of 15 to 40. It is preferably within the range of 20-30. Here, the K value is a constant representing the degree of polymerization proposed by the German chemist Fikencher, and is established in a wide range particularly for natural polymer solutions.
[0024]
The K value of PVP can be determined by the following measurement method. When the K value is less than 20, the viscosity of a 5% (g / 100 ml) solution is measured, and when the K value is 20 or more, the viscosity of a 1% (g / 100 ml) solution is measured. Sample concentration is converted to dry matter. Therefore, if the K value is less than 20, 5.0 g of the sample is measured. If the K value is 20 or more, 1.0 g of the sample is accurately measured, put into a 100 ml volumetric flask, distilled water is added at room temperature, and shaken. Dissolve completely and add distilled water to make exactly 100 ml. The sample solution is allowed to stand for 30 minutes in a thermostatic chamber (25 ± 0.2 ° C.) and then measured using an Ubbelohde viscometer. Measure the time for the solution to flow between the two markings. Measure several times and take the average value. In order to define the relative viscosity, the same is measured for distilled water. The two obtained flow times are corrected based on the Hagenbach-Couette correction value.
[0025]
[Expression 4]

In the above formula, Z represents the relative viscosity (ηrel) of the solution having the concentration C, C represents the concentration (%: g / 100 ml), and the relative viscosity ηrel is obtained from the following formula;
ηrel = (solution flow time) ÷ (water flow time)
[0026]
PVP contributes to improving the granulation and formability of the feed and lowering the powdering rate. As described above, by using a PVP having a low K value, an effect of suppressing the stickiness can be obtained while giving the feed wettability.
[0027]
As specific examples of PVP, for example, Luviskol K-17 (powder, K value 15-19, pH 3.0 to 7.0 of 10% aqueous solution) manufactured by BASF, Luviskol K-30 (powder, K value 27-33) 10% aqueous solution pH 3.0-7.0), Luviskol K-80 (powder, K value 74-82, 10% aqueous solution pH 5.0-8.0), Luviskol K-90 (powder, K value 88) -96, 10% aqueous solution pH 5.0-9.0), Luviskol K-30 (approximately 30% solution, K value 27-33, 10% aqueous solution pH 7.0-9.0), Luviskol K-60 ( About 45% solution, K value 52-62, pH 7.0-9.0 of 10% aqueous solution, Luviskol K-85 (about 20% solution, K value 83-88, pH 7.0 of 10% aqueous solution) 9.0), Luviskol K-90 (about 20% solution, K value 90 to 103, pH 7.0 to 9.0 of 10% aqueous solution) and the like. These may be used individually by 1 type and may be used in combination of 2 or more type. Among these, Luviskol K-30 is preferably used because it has a preferable K value.
[0028]
Viscosity Yuizai of the present invention, the above CMC salt and PVP, CMC salts: PVP = 50: obtained by blending in a mixing ratio of 50 to 85:15 (wt%). When the blending ratio of the CMC salt exceeds 85 %, the wettability decreases, and when it is less than 50%, sufficient caking property cannot be maintained.
[0029]
The binder of the present invention is prepared by adding 0.1% to 100 parts by weight (hereinafter referred to as “parts”) of feed raw material when granulating and forming a feed raw material containing fish meal, starch and the like as a main component, which does not contain raw feed. Add 2 to 10 parts, preferably 0.5 to 3 parts. By using the binder of the present invention, effects such as improvement in granulation property and moldability and reduction in the powdering rate of granulated and formed solid feed can be achieved. If the addition amount is less than 0.2 parts, the above effect cannot be obtained sufficiently, and if it exceeds 10 parts, the cost becomes disadvantageous.
[0030]
The binder of the present invention can be used by appropriately blending water-soluble polymer compounds such as guar gum and sodium alginate, which have been conventionally used as feed additives.
[0031]
Examples of feed ingredients mainly composed of fish meal, starch, etc. that do not contain the above raw food include fish meal at least 20%, soybean meal, rice bran, vitamins, minerals, other feed powder ingredients, etc. 80 The feed raw material which contains% or less is mentioned. Fish meal is often blended at a ratio of 50 to 100%, and other raw materials at a ratio of 50% or less.
[0032]
The reason why the raw bait is not blended is that it itself is easily altered, and that the solid feed is also easily altered by containing it.
[0033]
Fish meal is a typical animal protein source. For example, fish meal is often used as a feed for fish farming, and is roughly classified into two types: white fish meal and brown fish meal. In the present invention, such conventionally used fish meal can be used without particular limitation.
[0034]
Starch is not particularly limited, and examples include wheat flour, rice flour, corn starch, rice bran, soybean meal, and the like.
[0035]
As other feed powder materials, animal materials and plant materials other than fish meal are appropriately used. Examples of animal raw materials include meat meal, bone meal, feather meal, blood meal, skim milk powder, krill meal, squid meal, and the like. Examples of vegetable ingredients include oil meal, cereals, soybean meal, and gluten meal.
[0036]
As a granulating device used for granulating and forming a feed raw material containing the binder of the present invention into a solid feed, a general moist pelleter can also be used, but pelletization with a small amount of water addition Therefore, a semi-dry type or low moisture granulator, a disk pelleter or the like is preferably used.
[0037]
For example, examples of the granulation molding method using a normal disk pelleter include the following methods.
[0038]
(1) Feed raw material with uniform binder added to disc pelleter;
(2) A necessary amount of water (usually 5 to 28 parts with respect to 100 parts of feed raw material) is added and the feed raw material is made uniform while kneading. When the oil content in the feed is insufficient, after adding water, field oil or the like may be added (when adding field oil, usually 5 to 20 parts per 100 parts of feed raw material preferable);
(3) Pellet is granulated by a disk die by uniformly kneading in a disk pelleter;
(4) The volatile content of the granulated pellet is usually 5 to 10%, but when it exceeds 10%, it is dried in a dryer;
(5) After adjusting the volatile matter, a sieve treatment is performed to remove the pulverized material and finish the pellet.
[0039]
【Example】
Next, although the binder for solid feed and solid feed of this invention are demonstrated in detail based on an Example, this invention is not limited to this.
[0040]
[Examples 1-32, Comparative Examples 1-24]
As a binder, CMC-Na salt having the degree of etherification and 1% aqueous solution viscosity shown in Tables 1 to 4 (in the table, simply described as “viscosity”), PVP (BASF LUVISKOL K-30, K Hard pellets were prepared according to the following feed raw material prescription and hard pellet granulation molding method, using a blended value 30) with the blending ratio shown in the table. The disk pelleter used was a low-moisture granulator F-5 / 11-175 type (disk die 8 mmφ) manufactured by Fuji Powder Co., Ltd.
[0041]
[Formulation of feed ingredients]
Fish powder 50 parts Wheat flour 35 parts Degreased soybean meal 8 parts Beer yeast meal 7 parts [Granulation method of hard pellets]
1. Feed the feed raw material 1.5 kg and a predetermined amount of binder into a disk pelleter and add a predetermined amount of water while stirring;
2. The above charge is kneaded uniformly. This will push the pellets out of the die mouth;
3. The obtained pellets and the powdered material that could not be pelletized are combined and dried, and the volatile content is adjusted to 5 to 10%;
4). Treat with sieve (10 mesh) and collect only pellets.
[0042]
In each Example and Comparative Example, the amount of binder and water added to 100 parts of the sample raw material is as follows:
Examples 1-8, Comparative Examples 1-6: Binder 0.5 parts, Water 25 parts Examples 9-16, Comparative Examples 7-12: Binder 0.5 parts, Water 10 parts Examples 17- 24, Comparative Examples 13-18: 3 parts of binder, 25 parts of water Examples 25-32, Comparative Examples 19-24: 3 parts of binder, 10 parts of water
The hard pellets obtained in the above examples and comparative examples were evaluated by the following methods. The results are shown in Tables 1-4.
[0044]
1. About 50 g of pellets before drying (stage after completion of step 2 in the granulation molding method) obtained by volatile matter were collected, dried by heating at 105 ° C. for 3 hours, and the weight loss was obtained by the following formula. .
[0045]
[Equation 5]

[0046]
2. Measure the total weight (g) of the pellets and pulverized product (stage after finishing step 3 in the granulation molding method) that passed through the disk pelleter, and then pass the weight (b) passed through a 10 mesh sieve. It measured and calculated | required the powdering rate at the time of pellet granulation shaping | molding by following Formula.
[0047]
[Formula 6]

[0048]
3. Durability of pellets About 50 g of pellets after Step 4 in the above granulation and molding method were collected and rotated for 10 minutes with a pulverization rate tester of Stroop. After completion of rotation, the pellets were taken out and passed through a 10 mesh sieve. The path weight (c) was measured, and the durability of the pellet was determined by the following formula.
[0049]
[Expression 7]

[0050]
4). Appearance of pellets The state of the pellets after Step 4 in the granulation molding method was visually confirmed and evaluated according to the following criteria.
[0051]
◎: Glossy, clean cut-out pellets with no variation in shape ○: Glossy, cut-off pellets △: Slightly lacking gloss, uneven cuts ×: No gloss, long pellet length Pellets of different sizes [0052]
[Table 1]

[0053]
[Table 2]

[0054]
[Table 3]

[0055]
[Table 4]

[0056]
【The invention's effect】
According to the binder for solid feed of the present invention, a solid feed excellent in shape retention and durability can be obtained even when the amount of moisture added is suppressed, and the yield of the feed raw material is good. Moreover, the solid feed obtained is excellent in appearance such as gloss and no variation in shape. Furthermore, the binder of this invention also has the advantage that it can be easily mixed with a feed raw material uniformly.

Claims (2)

It is a binder for solid feed that is blended when granulated and formed into a solid feed by using a raw material mainly composed of fish meal, starch, etc.
A carboxymethylcellulose sodium salt having a degree of etherification of 0.6 or more and a viscosity of a 1% by weight aqueous solution in the range of 10 to 500 mPa · s and a polyvinylpyrrolidone having a K value in the range of 15 to 40 are 50 : 50-85: 15 (however, weight percentage)
A caking agent for solid feed, characterized in that it is blended at a ratio of 0.2 to 10 parts by weight with respect to 100 parts by weight of feed raw material containing fish meal, starch and the like as main ingredients without containing raw food. It is produced by adding 0.2 to 10 parts by weight of the solid feed binder according to claim 1 with respect to 100 parts by weight of feed raw materials mainly composed of fish meal, starch, etc. that do not contain raw food. Solid feed made by granulation.