代谢试验表明饲料酵母蛋白质代谢率达83.53%，接近于进口鱼粉；

And metabolic tests show that its metabolic rate of protein is up to 83.53%.

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最近已经研制出一种动物食用的蛋白质饲料，它是用石油作为基本原料加上酵母而制成的。

Recently protein feeds for animals have been developed by growing yeast in a petroleum based stock.

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生物技术所擅长的是从某种生物(比如人类)中提取出基因并将其植入另一种生物(以酵母菌为例)，从而艰难地获得大量所需的蛋白质。

Biotechnology is good at taking genes from one organism (a human being, for example) and sticking them into another (yeast, say) in order to churn out large amounts of a desirable protein.

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