維生素E做飼料添加劑的安全性

牧童

Safety of Vitamin E as a Feed Additive
EU - An investigation into the use of vitamin E as a supplement in animal feed, has found that there is no concern for consumers when it is used at practical levels.



The study was launched following a request from European Commission to the European Food Safety Authority to deliver a scientific opinion on the safety and efficacy of vitamin E as a feed additive for all animal species.

Vitamin E is a well-established micro-nutrient for all animal species. Vitamin E-based additives are globally used in animal nutrition, and have been for decades, to prevent vitamin E deficiency.

The Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) examined data from three active substances (all-rac-a-tocopheryl acetate, RRR-a-tocopheryl acetate and RRR-a-tocopherol) currently authorised as vitamin E. The biopotency of these forms is different: one International Unit (IU) of vitamin E is defined as 1 mg all-rac-a-tocopheryl acetate, as 0.74 mg of RRR-a-tocopheryl acetate and as 0.67 mg of RRR-a-tocopherol.

The additives described containing those forms of vitamin E do not present major stability or homogeneity issues. However, sensitivity to light and moisture, as well as to oxygen and heat for RRR-preparations, must be appropriately managed in order to maintain the amount of vitamin E nominally available to farm animals.

Vitamin E at the current use levels is safe for all animal species. Information on hypervitaminosis E is not sufficiently consistent to derive a maximum content for vitamin E in feedingstuffs, based on safety for target species.

A conservative consumer exposure assessment indicates that the UL (300 mg a-tocopherol equivalents/day) is not exceeded even assuming high background intake and levels in animal feeds far higher than practical use. The FEEDAP Panel concludes that the use of vitamin E at practical use levels is safe for the consumer.

No concern for user safety is expected from the use of the active substances vitamin E in feed additives. However, to draw conclusions on the final formulated additives, specific studies would be required.

Vitamin E occurs in nature and its use in animal nutrition will not result in a substantial increase in concentration in the environment. Therefore, no concern for the environment is expected.

All-rac-a-tocopheryl acetate, RRR-a-tocopherol and RRR-a-tocopheryl acetate are efficacious in all animal species in satisfying the requirements for vitamin E.

The FEEDAP Panel makes specific recommendations concerning (i) labelling of vitamin E in IU, (ii) restricting the use of oily RRR-a-tocopherol to premixture manufacturers, (iii) the introduction of a recommended maximum of 200 IU vitamin E/kg complete feedingstuffs, (iv) the specification of the additives.

horse

看起來不容易啊 ， 誰英語水平好，總結重點說說看！

chen0529ing

有高手翻譯一下撒

zwhxsq8198

在這里秀你的英文嗎？強烈鄙視?。?！

zwhxsq8198

　安全的維生素E作為飼料添加劑
　　歐盟-調查使用維生素E作為補充在動物飼料,發(fā)現有不關心消費者時,它是用于實際水平。
　　
　　
　　
　　這項研究是由發(fā)起要求歐洲委員會對歐洲的食品安全當局提供了科學的觀點的安全性和有效性的維生素E作為飼料添加劑為所有的動物。
　　
　　維生素E是成熟micro-nutrient為所有的動物。維生素E-based添加劑是全球用于動物營養(yǎng),并且已經數十年,以防止維生素E不足。
　　
　　這個小組和產品或物質的添加劑飼料(FEEDAP用于檢測數據從3)的活性物質(all-rac-a-tocopheryl酯、醋酸乙烯和RRR-a-tocopherol RRR-a-tocopheryl作為維他命E)已獲的biopotency這些形式是不同的:一個國際單位(IU)的維生素E被定義為1毫克all-rac-a-tocopheryl酯、醋酸RRR-a-tocopheryl作為0.74毫克)和0.67毫克的RRR-a-tocopherol。
　　
　　描述了添加劑包含那些形式的維生素E不是主要的穩(wěn)定性和瀝青混合料均勻性問題。然而,靈敏度光照和水分,以及對氧和加熱RRR-preparations,必須妥善保管,為了維護量的維生素E名義上可供農場的動物。
　　
　　在當前的使用維生素E是安全的,所有的動物。hypervitaminosis E的信息并沒有得到充分一致得到最大的內容,維生素E,feedingstuffs基于安全為目標的物種。
　　
　　一個保守的消費者暴露評估表明,UL(300毫克/天)a-tocopherol等價物是不超過即使高背景攝入和水平在動物飼料遠高于實際用處。這個FEEDAP小組得出的結論是,使用維生素E在實際運用層次消費者是安全的。
　　
　　不考慮用戶的安全將因使用活性物質維生素E在飼料添加劑。然而,在最后得出結論,具體研究制定添加劑是不可能完成的。
　　
　　維生素E發(fā)生在自然和它在動物營養(yǎng)并不會導致大幅增加,集中在這個環(huán)境。因此,沒有對環(huán)境的關心。
　　
　　All-rac-a-tocopheryl酯、醋酸是有效RRR-a-tocopherol和RRR-a-tocopheryl在所有動物在滿足要求,維生素E。
　　
　　FEEDAP小組的建議等進行具體的(我)標簽,維生素E,(2)限制IU的使用,premixture制造商,RRR-a-tocopherol油(3)引入推薦的最大的200 IU維生素E /公斤完整的feedingstuffs,(4),有其特定的添加劑。

lizhengwei

現在看到英語就頭痛。

孔躍龍

不錯 多發(fā)一些

孔躍龍 于 2010-9-24 09:42 補充以下內容

王老師謙虛了 我是你學生 好幾年不見了

thesea1215

面對這篇文章的時候，我淚流滿面，我想起我初中到大學的所有的英語老師們，他們是那么的敬業(yè)與執(zhí)著，孜孜不倦的教育一個頑固的學生，而這個學生總是敷衍了事的去學習一門本不屬于自己的語言。但是老師和學生還是一直堅持著，一個耐心教，一個堅持學，這一切都是為了那該死的分數。老師成功了，他的學生取得了應有的分數，學生也成功了，他一步一步終于全部過關。但是現在，在面對這篇文章，突然發(fā)現記憶中除了那些老師，對這些符號組成的東西我一個都不認識。

牧童

回復 8# thesea1215
文筆流暢而不繁瑣，
文采飛揚而不跋扈，
道出了千千萬萬個靴子的心聲，
代表了萬萬千千個國人的意志，
情真意切，
流露自然，
沒有絲毫做作，
更無半點狂放。
修煉如斯，
只好頂你。

qq522308088

看不懂，就亂頂