JP6085319B2 - Enriched chicken egg and method for producing the same - Google Patents
Enriched chicken egg and method for producing the same Download PDFInfo
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- JP6085319B2 JP6085319B2 JP2015013945A JP2015013945A JP6085319B2 JP 6085319 B2 JP6085319 B2 JP 6085319B2 JP 2015013945 A JP2015013945 A JP 2015013945A JP 2015013945 A JP2015013945 A JP 2015013945A JP 6085319 B2 JP6085319 B2 JP 6085319B2
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Description
本発明はビタミン類を富化した鶏卵及びその鶏卵の生産方法並びにその鶏卵を生産するために用いる飼料に関する。
さらに詳しくは、本発明は飼料中のビタミンA、ビタミンB6を強化した飼料を産卵鶏に給餌することにより、鶏卵へのビタミンAの移行率を改善し、それらのビタミン類を富化した鶏卵、及びその鶏卵の生産方法、並びにその鶏卵を生産するために用いる飼料に関する。
The present invention relates to a chicken egg enriched with vitamins, a method for producing the egg, and a feed used for producing the egg.
More specifically, the present invention improves the rate of transfer of vitamin A to eggs by feeding the diet enriched with vitamin A and vitamin B6 in the feed to the laying hens, and enriched with those vitamins, And a method for producing the egg, and a feed used for producing the egg.
人が健康な身体を維持するためには、炭水化物、たんぱく質、脂肪、ビタミン類、ミネラル類の栄養素をバランス良く摂取することが必要である。
しかしながら現代の多様化した生活パターンによる、無関心、多忙、飽食あるいは逆に節食、などの理由によりこれらの栄養素をバランスよく食物から摂取することが出来なかったり、また高齢者にあっては、食物の摂取量が減じることがあったりして、栄養バランスを維持することが困難な状況が起こり得る。
In order for a person to maintain a healthy body, it is necessary to have a balanced intake of nutrients such as carbohydrates, proteins, fats, vitamins and minerals.
However, due to indifference, busyness, satiety, or conversely, due to modern diversified life patterns, these nutrients cannot be taken from food in a balanced manner. There may be situations where it is difficult to maintain a nutritional balance due to reduced intake.
これらの栄養素のうち、ビタミン類は、微量で人及び動物における生体内の代謝・生理機能等の生理作用を司り、その欠乏又は過剰によって生体に重大な障害を与えることのある、人及び動物にとって必須の物質である。
そして、このビタミン類には、ビタミンB1、ビタミンB2、ナイアシン、ビタミンB6、ビタミンB12、葉酸、ビオチン、パントテン酸、ビタミンA、ビタミンC、ビタミンD、ビタミンE、及びビタミンKが挙げられるが、なかでもビタミンAは、視覚、聴覚、生殖機能等を維持する上で重要なビタミンである。
Among these nutrients, vitamins control the physiological functions such as metabolism and physiology in vivo in humans and animals in minute amounts, and for humans and animals that may seriously damage the living body due to their deficiency or excess. It is an essential substance.
And these vitamins include vitamin B1, vitamin B2, niacin, vitamin B6, vitamin B12, folic acid, biotin, pantothenic acid, vitamin A, vitamin C, vitamin D, vitamin E, and vitamin K. However, vitamin A is an important vitamin for maintaining vision, hearing, and reproductive function.
ビタミンAは、レバー、乳、バター、卵黄等に含まれる脂溶性ビタミンであり、動物性食品のみに含まれるが、他にヒトの体内でビタミンAに変換される前駆体としてニンジンやカボチャ、ホウレンソウ等に含まれるカロテン等を挙げることができる。
ビタミンAが不足すると、網膜の暗反応をつかさどる色素の生成が妨げられ、暗い所で目が見えにくくなる夜盲症を発症する。また、ビタミンAは皮膚や粘膜を正常な状態に保つ機能を有しており、これが不足すると皮膚の乾燥その他の健康障害を招くことが知られている。
ビタミンAの推定平均必要量は、18歳以上の成人男性で550〜600μgRE/日、18歳以上の成人女性で450〜500μgRE/日である(厚生労働省「日本人の食事摂取基準」(2010年版))。
Vitamin A is a fat-soluble vitamin contained in liver, milk, butter, egg yolk, etc., and is contained only in animal foods. Other precursors that are converted to vitamin A in the human body are carrots, pumpkins, and spinach. And carotene contained in the like.
Insufficient vitamin A impairs the production of pigments that control the dark reaction of the retina, resulting in night blindness that makes it difficult to see in the dark. Vitamin A has a function of keeping the skin and mucous membranes in a normal state, and it is known that when this is insufficient, skin dryness and other health problems are caused.
The estimated average required amount of vitamin A is 550 to 600 μg RE / day for adult males 18 years of age and older, and 450 to 500 μg RE / day for adult females 18 years of age and older. )).
従来、ビタミンAをはじめとするビタミン類を補給するための手段として、ビタミン類の1種又は数種を組み合わせたビタミン剤、又は成人一人当たりのビタミン類の必要量を配合した種々の総合ビタミン剤が販売されている。
さらに、これらのビタミン類又は栄養素を含有する栄養補助食品(dietary s
uppliment又はnutritional suppliment)についても種
々のものが販売されている。
しかしながら、これらのビタミン剤又は栄養補助食品を服用又は使用する場合に、服用又は使用管理を厳格に行わないと、ビタミン類の過剰摂取の危険がある。
Conventionally, as a means for supplementing vitamins such as vitamin A, vitamin preparations combining one or several kinds of vitamins, or various comprehensive vitamin preparations containing the necessary amount of vitamins per adult Is sold.
In addition, dietary supplements containing these vitamins or nutrients
Various types of supplements or nutritive supplements are also sold.
However, when taking or using these vitamins or dietary supplements, there is a risk of excessive intake of vitamins unless taking or managing the use strictly.
ビタミンAの過剰摂取は、頭痛、筋肉痛、視界がぼやける、皮膚の落屑、脱毛等の症状を招くことがある。成人におけるビタミンAの耐用摂取量の上限は2,700μgRE/
日、妊婦では3,000μgRE/日である。
Excessive intake of vitamin A may lead to symptoms such as headache, muscle pain, blurred vision, skin desquamation, and hair loss. The upper limit for vitamin A intake in adults is 2,700 μg RE /
3,000 μg RE / day for pregnant women.
このように、ビタミン剤の服用によるビタミンの過剰摂取が懸念される一方、食品からビタミン類などの栄養素を十分に摂取するための試みとして、ビタミン類などの栄養素を強化した飼料を家禽に給餌し、これらの栄養素を家禽が産卵する家禽卵に移行させ、栄養素が強化された家禽卵を生産する方法と栄養素が強化された家禽卵が提案されている。 In this way, while there is a concern about excessive intake of vitamins due to the use of vitamins, as an attempt to fully consume nutrients such as vitamins from food, feed with enhanced nutrients such as vitamins is fed to poultry. There have been proposed a method for transferring these nutrients to poultry eggs laid by poultry, producing poultry eggs with enhanced nutrients, and poultry eggs with enhanced nutrients.
例えば、採卵用家禽にビタミンK1又は/及びビタミンK3を10ppm以上含有する飼料を与えて飼育することを特徴とするビタミンK高濃度含有家禽卵の生産方法(特許文献1参照)が開示されている。
ビタミンAの前駆体を鶏卵に含有させる技術としては、かんきつ類の果実由来のクリプトキサンチン含有物を飼料に配合し、産卵用家禽に給餌して生産されたクリプトキサンチン含有鶏卵(特許文献2参照)、ドナリエラ藻体乾燥粉末に、米糠、米糠油、ビタミンD3、ビタミンEを混合した飼料添加物を鶏用配合飼料に使用することにより生産されたβ−カロテン含有鶏卵(特許文献3参照)などが開示されている。
For example, a method for producing a high-concentration vitamin K poultry egg characterized by feeding a poultry for egg collection with a feed containing 10 ppm or more of vitamin K1 and / or vitamin K3 (see Patent Document 1) is disclosed. .
As a technique for containing a precursor of vitamin A in a chicken egg, a cryptoxanthin-containing chicken egg produced by blending a citrus fruit-derived cryptoxanthin-containing material into a feed and feeding it to a poultry for laying eggs (see Patent Document 2), Disclosed is a β-carotene-containing egg produced by using a feed additive prepared by mixing rice bran, rice bran oil, vitamin D3, and vitamin E in a dry powder of Donariella algae (see Patent Document 3). Has been.
複数の栄養素を鶏卵中に含有させるための技術としては、主成分である穀類とカルシウム源と、カルシウム不溶化防止剤と、ビタミンDを含むビタミン類とを含有する養鶏用飼料を採卵用家禽に給餌して、鶏卵中のカルシウムとビタミンDを共に強化するための養鶏用飼料(特許文献4参照)、産卵用家禽飼料にビタミンD類とビタミンK類を同時に強化して給餌することにより生産される、ビタミン類強化鶏卵(特許文献5参照)等が開示されている。 As a technique for containing multiple nutrients in eggs, poultry feed containing cereals and calcium sources, calcium insolubilizers, and vitamins containing vitamin D as main ingredients is fed to poultry for egg collection. Then, it is produced by simultaneously feeding and strengthening vitamin Ds and vitamins K to poultry feed for strengthening both calcium and vitamin D in eggs (see Patent Document 4) and poultry feed for laying eggs. In addition, vitamin-enriched chicken eggs (see Patent Document 5) and the like are disclosed.
しかしながら、これらの文献に記載された方法又はその方法によって生産された鶏卵は、単独の栄養素をそのまま個別に鶏卵に移行させるか、又は、産卵鶏の体内で栄養素を変化させて鶏卵に移行させる方法によって栄養を強化された鶏卵又は鶏卵の生産法であった。
また、複数のビタミン、もしくはビタミンと他の栄養素を同時に飼料中に添加して鶏卵中に移行させる技術も、鶏卵中含量を強化する必要ある複数の栄養素を単純に飼料中に添加するか、家禽の腸内における溶出防止剤を別途配合して鶏卵移行量を維持・向上しようとしたにとどまり、複数のビタミンを同時に添加することによりビタミンの鶏卵への移行率そのものを高めることを目指したものではなかった。
However, the method described in these documents or the egg produced by the method is a method in which a single nutrient is directly transferred to a chicken egg as it is or a nutrient is changed in the body of a laying hen and transferred to a chicken egg. This is a method for producing eggs or eggs that have been enhanced in nutrition.
In addition, the technology to add multiple vitamins, or vitamins and other nutrients to the feed at the same time and transfer them to the egg is also possible by simply adding multiple nutrients that need to enhance the egg content to the feed or poultry. The aim was to increase the transfer rate of vitamins to eggs by adding multiple vitamins at the same time. There wasn't.
このような状況の下、産卵鶏の飼料中のビタミンAを、他の栄養素と同時に強化することによって、両成分の相乗効果によりビタミンAを鶏卵中により効率よく移行させることが出来れば、ビタミンAの必要量を過剰摂取の恐れ無しに、この鶏卵を食することによって効率よく摂取することができる。したがって、かかる鶏卵とその生産方法、及びその鶏卵を生産するための飼料の解明が求められるところである。 Under these circumstances, if vitamin A in the feed of laying hens is strengthened at the same time as other nutrients, vitamin A can be transferred more efficiently into hen eggs due to the synergistic effect of both components. The necessary amount of can be efficiently ingested by eating this egg without fear of overdose. Therefore, elucidation of such a chicken egg, its production method, and feed for producing the chicken egg is required.
本発明者らは、代謝作用や拮抗作用を有することから鶏卵中への移行量の変動幅が大き
いビタミンAをはじめとするビタミン類を、鶏卵中に効率よく移行させた鶏卵及びその生産方法について、鋭意研究の結果、本発明を完成させたのである。
The present inventors have disclosed a method for producing a chicken egg and a method for producing the same, in which vitamins such as vitamin A having a large fluctuation range of the amount transferred into chicken eggs due to its metabolic action and antagonistic action are efficiently transferred into chicken eggs. As a result of intensive studies, the present invention has been completed.
そして本発明者らは、ビタミンAを含有し、さらにビタミンB6を含有する飼料を産卵鶏に給餌することにより、ビタミンAが効率よく富化された鶏卵が生産されることを見出したのである。
すなわち、本発明の産卵鶏に給餌する飼料は、通常の飼料に強化される必須の成分として、ビタミンAとビタミンB6の双方を、強化含有させることを特徴とするものである。
The present inventors have found that eggs containing vitamin A and further containing vitamin B6 are fed to laying hens, so that eggs enriched with vitamin A efficiently can be produced.
That is, the feed fed to the laying hens of the present invention is characterized in that both vitamin A and vitamin B6 are fortified and contained as essential components fortified with ordinary feed.
本発明によれば、飼料中に、ビタミンAを5,000〜50,000IU/kg及びビタミンB6を50〜1,500mg/kg含有する飼料を産卵鶏に給餌することにより、ビ
タミンAを170〜330μgRE/可食部全卵100g、含有する鶏卵が得られることが見出されたのである。
According to the present invention, the feed containing 5,000 to 50,000 IU / kg of vitamin A and 50 to 1,500 mg / kg of vitamin B6 is fed to the laying hen in the feed, so that vitamin A is 170 to It was found that a chicken egg containing 330 μg RE / 100 g whole edible egg was obtained.
すなわち、本発明は、ビタミンAを含有し、さらにビタミンB6を含有する飼料を、産卵鶏に給餌することを特徴とする、ビタミンAの含有量が富化された鶏卵を生産する方法に関する。 That is, the present invention relates to a method for producing a chicken egg enriched in vitamin A, characterized by feeding a laying hen with a feed containing vitamin A and further containing vitamin B6.
また本発明は、飼料中に、ビタミンAを含有し、さらにビタミンB6を含有することを特徴とする、ビタミンAの含有量が富化された鶏卵を生産するための飼料に関する。 The present invention also relates to a feed for producing eggs enriched with vitamin A, characterized in that the feed contains vitamin A and further contains vitamin B6.
また本発明は、飼料中に、ビタミンAを含有し、さらにビタミンB6を含有する飼料を産卵鶏に給餌することによって生産される、ビタミンAの含有量が富化されたことを特徴とする鶏卵に関する。 In addition, the present invention provides a chicken egg characterized by enriched vitamin A content produced by feeding a laying hen with feed containing vitamin A and further containing vitamin B6 in the feed. About.
本発明は、特定的には、飼料中に、ビタミンAを5,000〜50,000IU/kg含有し、さらにビタミンB6を50〜1,500mg/kg含有する飼料を、産卵鶏に給餌
することを特徴とする、ビタミンAの含有量が富化された鶏卵を生産する方法に関する。
Specifically, the present invention feeds a laying hen with a feed containing 5,000 to 50,000 IU / kg of vitamin A and 50 to 1,500 mg / kg of vitamin B6 in the feed. And a method for producing a chicken egg enriched in vitamin A content.
また本発明は、特定的には、飼料中に、ビタミンAを5,000〜50,000IU/kg含有し、さらにビタミンB6を50〜1,500mg/kg含有することを特徴とする
、ビタミンAの含有量が富化された鶏卵を生産するための飼料に関する。
In addition, the present invention specifically contains vitamin A in the feed at 5,000 to 50,000 IU / kg, and vitamin B6 at 50 to 1,500 mg / kg. The present invention relates to a feed for producing eggs enriched in the content of.
また本発明は、上記した特定の範囲のビタミンAの含有量を有し、さらに上記した特定の範囲のビタミンB6を含有する飼料を産卵鶏に給餌することによって生産される、ビタミンAを170〜330μgRE/可食部全卵100g含有する鶏卵に関し、さらに好ましくは、該鶏卵はビタミンB6を0.16〜0.76mg/可食部全卵100g、含有することを特徴とする鶏卵に関する。 Moreover, this invention has vitamin-A content of the specific range mentioned above, and also produces vitamin A 170-150 produced by feeding a laying hen with the feed containing vitamin B6 of the specific range mentioned above. More preferably, the chicken egg contains 0.16 to 0.76 mg of vitamin B6 / 100 g of edible whole egg, and more preferably relates to a chicken egg containing 100 g of edible whole egg.
本発明の好ましい特定例では、飼料中に、ビタミンAを20,000〜50,000IU/kg含有し、さらにビタミンB6を50〜1,500mg/kg含有する飼料を、産卵
鶏に給餌することを特徴とする、ビタミンAの含有量が富化された鶏卵を生産する方法に関する。
In a preferred specific example of the present invention, the feed contains 20,000 to 50,000 IU / kg of vitamin A and 50 to 1,500 mg / kg of vitamin B6. The invention relates to a method for producing a chicken egg enriched in vitamin A content.
また本発明の好ましい特定例では、飼料中に、ビタミンAを20,000〜50,000IU/kgを含有し、さらにビタミンB6を50〜1,500mg/kg含有することを
特徴とする、ビタミンAの含有量が富化された鶏卵を生産するための飼料に関する。
In a preferred specific example of the present invention, vitamin A contains 20,000 to 50,000 IU / kg of vitamin A and 50 to 1,500 mg / kg of vitamin B6 in the feed. The present invention relates to a feed for producing eggs enriched in the content of.
また本発明の好ましい特定例では、上記した特定の範囲のビタミンAの含有量を有し、さらに上記した特定の範囲のビタミンB6を含有する飼料を産卵鶏に給餌することによっ
て生産される、ビタミンAを230〜330μgRE/可食部全卵100g含有することを特徴とする鶏卵に関し、さらに好ましくは、該鶏卵はビタミンB6を0.16〜0.76mg/可食部全卵100g含有することを特徴とする鶏卵に関する。
Moreover, in the preferable specific example of this invention, it has a content of the above-mentioned specific range vitamin A, Furthermore, it is produced by feeding a laying hen with the feed containing the above-mentioned specific range vitamin B6. The egg is characterized by containing A in an amount of 230 to 330 μg RE / 100 g of whole edible egg, and more preferably, the egg contains 0.16 to 0.76 mg of vitamin B6 / 100 g of whole edible egg. It relates to the characteristic egg.
本発明によれば、飼料中のビタミンA及びビタミンB6を同時に強化することにより、ビタミンAを効率よく鶏卵に移行させることが出来る結果、ビタミンAを通常よりも高濃度に含有する鶏卵を生産することが可能となるという優れた効果を有する。
また、本発明によれば、その好ましい特定例においてビタミンAを230〜330μgRE/可食部全卵100gを含有する鶏卵が得られる結果、該鶏卵を2個/日(鶏卵のサイズM、可食部60g/個として)を食することにより、成人の1日の推定必要量(男性550〜600μgRE/日、女性450〜500μgRE/日)の半分程度〜半分強を容易に摂取することができる。
また、本発明によれば、ビタミンAと共に飼料中に強化するビタミンB6の含量を上記特定の範囲に限った結果、産卵成績の顕著な低下を招くことなく、ビタミンAを高濃度に含有する鶏卵を生産することが可能になるのである。
According to the present invention, by simultaneously strengthening vitamin A and vitamin B6 in the feed, vitamin A can be efficiently transferred to chicken eggs, and as a result, chicken eggs containing vitamin A at a higher concentration than usual are produced. It has the excellent effect that it becomes possible.
Further, according to the present invention, as a result of obtaining a chicken egg containing 230-330 μg RE / 100 g of whole edible egg of vitamin A in a preferred specific example thereof, 2 eggs / day (chicken egg size M, edible By eating 60 g / piece, about half to slightly more than half of the estimated daily required amount for adults (550 to 600 μg RE / day for men, 450 to 500 μg RE / day for women) can be easily ingested.
Further, according to the present invention, as a result of limiting the content of vitamin B6 strengthened in the feed together with vitamin A to the above specific range, the egg containing vitamin A at a high concentration without causing a significant decrease in egg production performance. Can be produced.
本発明の飼料には、産卵鶏用の飼料として通常使用される飼料(基礎飼料)に必要なビタミン類を添加したものが使用される。
この基礎飼料の原料としては、トウモロコシ、マイロ、小麦、大麦、燕麦、ライ麦、玄米、そば、あわ、きび、ひえなどの穀類、米ぬか、トウモロコシぬか、トウモロコシ胚芽などの糟糠類、大豆油かす、きな粉、亜麻仁油かす、パーム核かす、ごま油かす、ひまわり油かす、なたね油かすなどの植物性油かす類、魚粉、フィッシュソリュブル、肉粉、肉骨粉、血粉、脱脂粉乳、カゼイン、乾燥ホエーなどの動物性飼料原料、大豆油、落花生油、やし油、パーム油、タロー、ラードなどの油脂が挙げられる。
As the feed of the present invention, a feed to which vitamins necessary for a feed (basic feed) usually used as a feed for laying hens is added is used.
The basic feed ingredients are corn, mylo, wheat, barley, buckwheat, rye, brown rice, buckwheat, millet, millet, and other cereals, rice bran, corn bran, corn germ and other cereals, soybean oil cake, and kinako flour. Animal feed such as flaxseed oil cake, palm kernel cake, sesame oil cake, sunflower oil cake, rapeseed oil cake, fish meal, fish soluble, meat powder, meat-and-bone meal, blood meal, skim milk powder, casein Examples include oils and fats such as raw materials, soybean oil, peanut oil, palm oil, palm oil, tallow and lard.
これらの基礎飼料の原料を適宜の量で配合して産卵鶏用の基礎飼料とするが、本発明によれば、これらの基礎飼料に対して、必要なビタミン類である、ビタミンA及びビタミンB6が、その相互作用による鶏卵中への効率的な移行にとって最適な含有量となる量で配合して用いられる。 These basic feed ingredients are blended in appropriate amounts to make a basic feed for laying hens. According to the present invention, vitamin A and vitamin B6, which are necessary vitamins for these basic feeds, are used. However, it is blended and used in an amount that is optimal for efficient transfer into the egg due to the interaction.
すなわち、本発明によれば基礎飼料中に、ビタミンA及びビタミンB6のそれぞれの含有量が、ビタミンAを5,000〜50,000IU/kg、好ましくは20,000〜5
0,000IU/kg、ビタミンB6を50〜1,500mg/kg、好ましくは400〜1,500mg/kgとなるように、これらのビタミン類を添加して調製する。
That is, according to the present invention, each content of vitamin A and vitamin B6 in the basic feed is 5,000 to 50,000 IU / kg of vitamin A, preferably 20,000 to 5
These vitamins are added and prepared so that it may become 0.00 IU / kg and vitamin B6 50-1500 mg / kg, preferably 400-1500 mg / kg.
これらのビタミン類の基礎飼料中の含量が少なすぎると、鶏卵へのビタミン移行率の充分な改善効果が得られない。
また、これらのビタミン類の基礎飼料中の含量が多すぎると、飼料に対する産卵鶏の嗜好性が悪化することによる飼料摂取量の減少、産卵率の悪化等を招くおそれがあり、また、産卵鶏飼料としての採算性の点でも問題がある。
If the content of these vitamins in the basic feed is too small, a sufficient improvement effect of the rate of transfer of vitamins to eggs cannot be obtained.
In addition, if the content of these vitamins in the basic feed is too high, there is a risk of reducing the intake of feed due to the deterioration of the palatability of the laying hen for the feed, the deterioration of the laying rate, etc. There is also a problem in terms of profitability as feed.
これらのビタミン類を強化した産卵鶏飼料を鶏に少なくとも14日間、好ましくは21日間以上給餌することによって、本発明の目的とする特定量のビタミン類を含有する鶏卵を得ることができる。 By feeding the chicken with a laying hen feed enriched with these vitamins for at least 14 days, preferably 21 days or more, a chicken egg containing a specific amount of vitamins targeted by the present invention can be obtained.
本発明の鶏卵を得るための産卵鶏には、特に限定はなく、鶏卵を産生する鶏であれば本発明によってビタミン類の含有量を調整した飼料を給餌することでビタミン類の含有量の富化された鶏卵が得られるが、白色系卵採卵用鶏、褐色系卵採卵用鶏、ピンク系卵採卵用鶏などが好ましく、殊に白色系卵採卵用鶏が好ましい。 The laying hen for obtaining the hen's egg of the present invention is not particularly limited, and as long as it is a chicken that produces hen's egg, it is rich in vitamins content by feeding the feed with adjusted vitamin content according to the present invention. However, white-type egg-collecting chickens, brown-type egg-collecting chickens, pink-type egg-collecting chickens, etc. are preferred, and white-type egg-collecting chickens are particularly preferred.
本発明による飼料を給餌することによって、可食部全卵100g中にビタミンAを170μgRE/100g以上、好ましくは170〜330μgRE/100g、さらに好ましくは230〜330μgRE/100g、ビタミンB6を0.16mg/100g以上
、好ましくは0.16〜0.76mg/100g、さらに好ましくは0.26〜0.76mg/100gのそれぞれを含有する鶏卵を得ることができる。
By feeding the feed according to the present invention, 100 g of edible part whole egg contains vitamin A of 170 μg RE / 100 g or more, preferably 170 to 330 μg RE / 100 g, more preferably 230 to 330 μg RE / 100 g, and vitamin B6 of 0.16 mg / Eggs containing 100 g or more, preferably 0.16 to 0.76 mg / 100 g, more preferably 0.26 to 0.76 mg / 100 g, can be obtained.
上記のとおり本発明により、飼料中のビタミンAと、ビタミンB6を調整したビタミン強化飼料を産卵鶏に給餌することにより、ビタミンAが富化された鶏卵が得られる。特に、飼料中のビタミンB6を強化することにより、鶏卵へのビタミンAの移行率が改善される。 As described above, by feeding vitamin A in the feed and a vitamin-enriched feed prepared by adjusting vitamin B6 to the laying hen according to the present invention, a chicken egg enriched with vitamin A is obtained. In particular, by enhancing vitamin B6 in the feed, the transfer rate of vitamin A to chicken eggs is improved.
以下、実施例によって本発明を具体的に説明するが、これらの実施例は本発明を単に説明するためのものであって、特許請求の範囲に記載された本発明を限定するものではない。 EXAMPLES Hereinafter, the present invention will be specifically described by way of examples. However, these examples are merely for explaining the present invention, and do not limit the present invention described in the claims.
表1、2に示す基礎飼料をベースとし、さらに、ビタミンAとビタミンB6を添加して、表3、4に示す量に調整したビタミン強化飼料を用意した。 Based on the basic feed shown in Tables 1 and 2, vitamin A and vitamin B6 were further added to prepare vitamin-enriched feeds adjusted to the amounts shown in Tables 3 and 4.
上記表3及び表4のとおり調整した飼料を、産卵鶏(ジュリア種)に21日間不断給餌し、得られた鶏卵中の各種ビタミンを分析した。なお、試験は次に示すとおりの二通りの方法により実施した。
試験1(実施例1〜8、比較例1〜5)
鶏種:ジュリア、開始日齢:269日齢、10羽×13区(130羽)
試験2(実施例9〜12、比較例6〜9)
鶏種:ジュリア、開始日齢:327日齢、10羽×8区(80羽)
The feed adjusted as shown in Table 3 and Table 4 above was fed continuously to laying hens (Julia species) for 21 days, and various vitamins in the resulting hen eggs were analyzed. The test was carried out by the following two methods.
Test 1 (Examples 1-8, Comparative Examples 1-5)
Chicken species: Julia, starting age: 269 days, 10 birds x 13 wards (130 birds)
Test 2 (Examples 9-12, Comparative Examples 6-9)
Chicken species: Julia, starting age: 327 days, 10 birds x 8 wards (80 birds)
以下に試験結果、すなわち、試験1(実施例1〜8、比較例1〜5)と、試験2(実施例9〜12、比較例6〜9)について、産卵成績と鶏卵可食部中のビタミンA、B6含有量についての測定結果を示す。 About test results, namely, test 1 (Examples 1-8, Comparative Examples 1-5) and test 2 (Examples 9-12, Comparative Examples 6-9), the egg-laying results and the edible egg portion The measurement result about vitamin A and B6 content is shown.
表5及び表6には産卵成績が、表7及び表8には鶏卵可食部中のビタミンA、及びB6の含有量が示されている。 Tables 5 and 6 show the egg laying results, and Tables 7 and 8 show the contents of vitamin A and B6 in the edible egg part.
上記の測定結果より、以下の点が明らかとなった。
1.実施例1〜12に示されたとおり、飼料中のビタミンAが5,000〜50,000IU/kgの範囲では、飼料中のビタミンB6含量を高めることにより、鶏卵中のビタミンA含量が高まる傾向にあり、飼料中ビタミンB6含量を4.3mg/kgから50、10
0、400、1000、1500mg/kgに高めたとき、鶏卵中のビタミンA含量は、それぞれ105〜107%、103〜110%、107〜112%、113〜121%、114%に高まった。
2.比較例3に示されたとおり、飼料中ビタミンB6を1,500mg/kgを超える範
囲(2,000mg/kg)で添加しても、更なるビタミンAの上昇は認められなかった
。
3.比較例8、9に示されたとおり、飼料中のビタミンAが66,000IU/kgでは
、飼料中のビタミンB6含量を1,000mg/kgに高めても、鶏卵中のビタミンA含
量が高まらなかった。
4.飼料中のビタミンB6を2,000mg/kgまで高めた試験1の8区(比較例3)
では、顕著な産卵率の低下が認められた。
From the above measurement results, the following points became clear.
1. As shown in Examples 1 to 12, when the vitamin A in the feed is in the range of 5,000 to 50,000 IU / kg, the vitamin A content in the chicken egg tends to increase by increasing the vitamin B6 content in the feed. The vitamin B6 content in the feed is 4.3 mg / kg to 50, 10
When increased to 0, 400, 1000 and 1500 mg / kg, the vitamin A content in the eggs increased to 105-107%, 103-110%, 107-112%, 113-121% and 114%, respectively.
2. As shown in Comparative Example 3, even when vitamin B6 in the feed was added in a range exceeding 1,500 mg / kg (2,000 mg / kg), no further increase in vitamin A was observed.
3. As shown in Comparative Examples 8 and 9, when the vitamin A content in the feed was 66,000 IU / kg, even if the vitamin B6 content in the feed was increased to 1,000 mg / kg, the vitamin A content in the eggs was not increased. It was.
4). Eight sections of Test 1 in which vitamin B6 in the feed was increased to 2,000 mg / kg (Comparative Example 3)
In, a significant decrease in the egg-laying rate was observed.
上記の結果から、飼料中のビタミンAとビタミンB6を、本発明のとおり調整したビタミン強化飼料を産卵鶏に給餌することにより、ビタミンAが特段に富化された鶏卵が得られることが明らかになった。 From the above results, it is clear that by feeding a laying hen a vitamin-enriched ration prepared by adjusting vitamin A and vitamin B6 in the feed as described in the present invention to a laying hen, an egg enriched with vitamin A is obtained. became.
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