Yields of essential amino acids in pounds per acre range from 37 for milk to 10 for beef.

每亩的必需氨基酸产率以磅计的范围从乳中的37磅到牛肉中的10磅。

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However, most amino acids, except arginine, valine and glutamic acid, were lower in HVS than DSBM if it is calculated per 100 g crude protein basis.

而以每100克蛋白质中氨基酸含量计算，除精氨酸、酪氨酸和谷氨酸外，HVS中其它氨基酸含量均低于DSBM。

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However, the yield of D-amino acids has been tempered by some limited factors from strain per se resulting in the shortages of that goods in the markets.

目前，用微生物菌体转化生产d -型氨基酸的工艺路线已经产业化，但天然菌体转化工艺存在一些限制因素，阻碍了D -型氨基酸的扩大生产，导致产品短缺。

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