This thesis shall study the cost benefit of each link about the beef cattle industry chain.

本文旨在从产业链的各个环节出发，研究和分析各个环节的成本收益。

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The embargo was lifted last year after the EU declared itself satisfied with measures to eradicate BSE from British cattle herds and the food chain.

BBC: Renewed British mad cow disease warning

That, of course, drives the food chain for people and also cattle up by quite a bit and then it affects the economy.

NPR: Would More Biofuel Use Threaten Food Supplies?

Last month EU farm ministers approved a programme to destroy all older non-BSE tested cattle to keep them out of the food chain, affecting up to two million animals.

CNN: Beef sales slump after EU BSE scare