“non-protein nitrogen feed”的概念、定义、翻译、参考文献-科学参考

单词	non-protein nitrogen feed
释义	non-protein nitrogen feed Encyclopedia 农学〔饲料和饲料添加剂产品〕释 non-protein nitrogen feed非蛋白氮饲料为补充反刍动物瘤胃中微生物繁殖所需氮源，节省真蛋白质资源而在饲料中添加的非蛋白质态含氮化合物（NPN）。
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