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发表于 2011-9-15 11:21
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鲁仁毅同学确实很专业，是有些farmers在饲料中添加玉米，可能会有些新品种。但是Organic是用传统玉米的。这个是饲料的组成：
% u [; v+ ~& X( K" z* Q, Qforage (hay), grains, minerals, vitamins (the grains, minerals, vitamins all are mixed together into what is called a total mixed ration or TMR) ,a balanced diet optimized for protein, minerals and vitamins. / f: M: {: P2 D( {
抗生素和激素是被禁止的。7 W% W3 @5 `5 v5 J) ]( ?# H2 A7 L
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至于疯牛病，这是我找到的一条新闻
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CALGARY - An Alberta cow has tested positive for mad cow disease, the Canada Food Inspection Agency confirmed Friday.! V C7 B1 _7 g! s; t
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The cow, a 77-month dairy cow, was found to have bovine spongiform encephalopathy on February 18.
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No part of the animal's carcass has entered the food chain or animal-feed systems, the CFIA said.
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" \" w* A+ h9 O5 O3 Z! ]. a) `The federal agency said it doesn't expect this case to impact exports of Canadian cattle or beef, as the detection of a small numbers of mad-cow disease is expected every year.0 d. ?& f4 o1 j0 h% A8 {
+ @7 s# v: b7 b1 i3 P% q3 FIn 2009 and 2010 each, one of about 35,000 cows tested for the disease tested positive.
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, H8 l0 _. W& {& WSince 2003, there have been 18 cases of confirmed mad-cow disease, CFIA data shows.9 G. }7 O, ^0 q+ e; g
: M# r+ f. M! m, Nhttp://ca.reuters.com/article/domesticNews/idCATRE7233JT20110304
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应该问题不大吧，谢谢！ |
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