蛋白性氮（albuminoid nitrogen）水中某些含氮化合物中的氮，在特定条件下卜加碱性高锰酸沸时，释放出氨。这种化合物中的氮为蛋白性氮。
稻草经氨化，可改善反刍家畜对其的适口性，提高采食量和稻草中能量及非蛋白氮水平。
The ammoniated straw can improve sapidity of cud chewer, and increase feed intake, the level of energy and nonprotein.
过量的蛋白质供给可导致血氨过高或血尿素氮升高，进而可发生液体负荷过多，胆汁淤积和渗透性利尿。
Excess protein may cause hyperammonemia or an elevated BUN. Fluid overload, cholestasis and osmotic diuresis are further problems which may occur.
方法测定了不同月龄的狼疮性BXSB小鼠的各种抗DNA抗体，血尿素氮和尿蛋白质浓度。
MethodsAnti DNA IgG and IgM antibodies, blood BUN and urine protein in lupus prone BXSB mice with age varying from 1 to 6 month were detected quantitatively in our experiment.
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