Although human can convert alpha-linolenic acid(ALA)to EPA and DHA, the conversion rate is so low, you need eat a lot of food contain ALA, that's make it impractical.

虽然人体可以自动将 α-亚麻酸（ALA） 转换成 二十碳五烯酸（EPA） 和 二十二碳六烯酸（DHA） ，但转换率很低，人们需要食用大量含有 α-亚麻酸（ALA） 的食品才行，这种做法可行性不高。

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The human population benefits greatly from poultry meat and eggs, which provide food containing high-quality protein, and a low level of fat with a desirable fatty acid profile.

禽肉和禽蛋对人类大有益处，为人类提供食物所含的高质量蛋白质，并且脂肪含量较低，脂肪酸含量较高。

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For cultivating bacteria and differentiating bacteria base on dextrose fermentation, and for commercial sterility testing of low acid canned food.

用于培养细菌和鉴别细菌发酵葡萄糖试验，还用于低酸性罐头食品商业无菌检验。

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