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(lái)不容易啊 ， 誰(shuí)英語(yǔ)水平好，總結(jié)重點(diǎn)說說看！

chen0529ing

有高手翻譯一下撒

zwhxsq8198

在這里秀你的英文嗎？強(qiáng)烈鄙視?。。?/td>

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(bǔ)充在動(dòng)物飼料,發(fā)現(xiàn)有不關(guān)心消費(fèi)者時(shí),它是用于實(shí)際水平。
　　
　　
　　
　　這項(xiàng)研究是由發(fā)起要求歐洲委員會(huì)對(duì)歐洲的食品安全當(dāng)局提供了科學(xué)的觀點(diǎn)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(dòng)物。
　　
　　維生素E是成熟micro-nutrient為所有的動(dòng)物。維生素E-based添加劑是全球用于動(dòng)物營(yíng)養(yǎng),并且已經(jīng)數(shù)十年,以防止維生素E不足。
　　
　　這個(gè)小組和產(chǎn)品或物質(zhì)的添加劑飼料(FEEDAP用于檢測(cè)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(gè)國(guó)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(duì)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(chǎng)的動(dòng)物。
　　
　　在當(dāng)前的使用維生素E是安全的,所有的動(dòng)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(gè)保守的消費(fèi)者暴露評(píng)估表明,UL(300毫克/天)a-tocopherol等價(jià)物是不超過即使高背景攝入和水平在動(dòng)物飼料遠(yuǎn)高于實(shí)際用處。這個(gè)FEEDAP小組得出的結(jié)論是,使用維生素E在實(shí)際運(yùn)用層次消費(fèi)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(dòng)物營(yíng)養(yǎng)并不會(huì)導(dǎo)致大幅增加,集中在這個(gè)環(huán)境。因此,沒有對(duì)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(dòng)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(yǔ)就頭痛。

孔躍龍

不錯(cuò) 多發(fā)一些

孔躍龍 于 2010-9-24 09:42 補(bǔ)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(duì)這篇文章的時(shí)候，我淚流滿面，我想起我初中到大學(xué)的所有的英語(yǔ)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(gè)頑固的學(xué)生，而這個(gè)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(yǔ)言。但是老師和學(xué)生還是一直堅(jiān)持著，一個(gè)耐心教，一個(gè)堅(jiān)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(duì)這篇文章，突然發(fā)現(xiàn)記憶中除了那些老師，對(duì)這些符號(hào)組成的東西我一個(gè)都不認(rèn)識(shí)。

牧童

回復(fù) 8# thesea1215
文筆流暢而不繁瑣，
文采飛揚(yáng)而不跋扈，
道出了千千萬(wàn)萬(wàn)個(gè)靴子的心聲，
代表了萬(wàn)萬(wàn)千千個(gè)國(guó)人的意志，
情真意切，
流露自然，
沒有絲毫做作，
更無(wú)半點(diǎn)狂放。
修煉如斯，
只好頂你。

qq522308088

看不懂，就亂頂