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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：$ H0 }- z; Q: U; Y2 C% b
forage (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. & R0 S7 B7 K* w' V
抗生素和激素是被禁止的。
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1 K( T" m9 o8 g; e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.
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B( v3 {! |) ?6 _$ FThe 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.' b, ?/ M# a* @9 p
6 W5 M1 L* ]$ J& q, x- jThe 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.$ U& W9 z# N$ y
7 A: e& K8 M! GIn 2009 and 2010 each, one of about 35,000 cows tested for the disease tested positive.
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4 C# |' l9 v- J/ \8 zSince 2003, there have been 18 cases of confirmed mad-cow disease, CFIA data shows., s0 }; a* H& X' U) g& T
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http://ca.reuters.com/article/domesticNews/idCATRE7233JT20110304$ W% s# l+ q- @4 z0 [3 m+ ^
8 L0 h7 h& l$ ?% i6 m5 T& Q' x应该问题不大吧，谢谢！ |
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