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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： e0 h3 i& ]/ h: T0 p
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. 4 u Q6 _% ~) B( c1 ?1 i
抗生素和激素是被禁止的。7 H! h/ \) V- a) Q! u
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至于疯牛病，这是我找到的一条新闻8 o, y- A& W3 }8 ^" ]
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CALGARY - An Alberta cow has tested positive for mad cow disease, the Canada Food Inspection Agency confirmed Friday.& O E2 B8 W8 j* m
8 |* T6 e/ i; U* P% pThe cow, a 77-month dairy cow, was found to have bovine spongiform encephalopathy on February 18.* D# C0 \9 Q. y6 ?$ N/ w
# R( ]4 _$ e2 U: N0 hNo part of the animal's carcass has entered the food chain or animal-feed systems, the CFIA said.1 n' i( I7 G, J8 C8 z
- z Q. }# C3 N6 s" j& mThe 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.$ F% J, X) G: B1 S3 i3 q
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In 2009 and 2010 each, one of about 35,000 cows tested for the disease tested positive.
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6 ^6 C& C0 n' J$ b9 ]/ GSince 2003, there have been 18 cases of confirmed mad-cow disease, CFIA data shows.: b1 r1 C: _ T8 M1 _
- F6 ?% g5 @9 x+ t5 z6 Shttp://ca.reuters.com/article/domesticNews/idCATRE7233JT20110304 C2 i& Y7 N$ ~
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应该问题不大吧，谢谢！ |
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发表于 2011-9-15 08:32
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