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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：
. W" |# c* ]4 Rforage (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.
. f9 O* G4 e9 v8 s抗生素和激素是被禁止的。4 S& L2 w$ f8 K+ i& @4 q! t2 O
4 F( J; v4 H i至于疯牛病，这是我找到的一条新闻
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+ a5 H& l1 Z/ p% ~CALGARY - An Alberta cow has tested positive for mad cow disease, the Canada Food Inspection Agency confirmed Friday.
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The cow, a 77-month dairy cow, was found to have bovine spongiform encephalopathy on February 18., s/ z/ }: D0 J1 [# ^
) f2 b* g3 R& [, ?: g1 i7 _No part of the animal's carcass has entered the food chain or animal-feed systems, the CFIA said.
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% j* x1 v7 N1 g; [8 OThe 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.
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) C$ i( a2 {0 RIn 2009 and 2010 each, one of about 35,000 cows tested for the disease tested positive.
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Since 2003, there have been 18 cases of confirmed mad-cow disease, CFIA data shows.% S! c6 I6 e: v, X" l- M" }2 i3 D, \
. r9 Y& t' ^8 ~$ u6 khttp://ca.reuters.com/article/domesticNews/idCATRE7233JT201103049 x/ N: ?" j# R8 [5 F, N+ k, J' L" P
+ J( z& a K: ~ R! h% j# K应该问题不大吧，谢谢！ |
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