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(jié)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(diào)查使用維生素E作為補充在動物飼料,發(fā)現(xiàn)有不關(guān)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(dāng)局提供了科學(xué)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(jīng)數(shù)十年,以防止維生素E不足。
　　
　　這個小組和產(chǎn)品或物質(zhì)的添加劑飼料(FEEDAP用于檢測數(shù)據(jù)從3)的活性物質(zhì)(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(hù)量的維生素E名義上可供農(nóng)場的動物。
　　
　　在當(dāng)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(nèi)容,維生素E,feedingstuffs基于安全為目標(biāo)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(yuǎn)高于實際用處。這個FEEDAP小組得出的結(jié)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(zhì)維生素E在飼料添加劑。然而,在最后得出結(jié)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(dǎo)致大幅增加,集中在這個環(huán)境。因此,沒有對環(huán)境的關(guān)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(jìn)行具體的(我)標(biāo)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(xiàn)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(nèi)容

王老師謙虛了 我是你學(xué)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(xué)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(xué)生，而這個學(xué)生總是敷衍了事的去學(xué)習(xí)一門本不屬于自己的語言。但是老師和學(xué)生還是一直堅持著，一個耐心教，一個堅持學(xué)，這一切都是為了那該死的分?jǐn)?shù)。老師成功了，他的學(xué)生取得了應(yīng)有的分?jǐn)?shù)，學(xué)生也成功了，他一步一步終于全部過關(guān)。但是現(xiàn)在，在面對這篇文章，突然發(fā)現(xiàn)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(rèn)識。

牧童

回復(fù) 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