Abstract: This study was conducted to investigate the effects of heat stress on endocrine hormone content, antioxidant enzyme activity and physiological and serum biochemical indices of beef cattle.

摘要本试验旨在研究热应激对肉牛血清内分泌激素含量、抗氧化酶活性及生理生化指标的影响。

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Under the deal that has been struck, the EU will keep its ban on hormone-treated beef, but the import quota levels for non-hormone treated beef would be increased, giving greater access to the EU market for exporters in the US and Canada.

BBC: MEPs back end to hormone beef war

American disobedience would also undermine its pressure on the European Union over bananas and hormone-treated beef.

ECONOMIST: Turtle soup

EU's recalcitrance over bananas and hormone-treated beef, and by America's growing disenchantment with curbs on its unilateralist instincts.

ECONOMIST: Storm over globalisation