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生物技术通报 | 瘤胃氨同化通路及基因进化研究进展
反刍动物瘤胃中氨的生成速度快,氨同化的速度慢,这导致氨很容易在瘤胃中累积。若瘤胃氨浓度过高,部分过量的氨被运输至肝脏,通过鸟氨酸-尿素循环再次转化为尿素排出体外,不仅降低了氨利用效率[10],还可能造成反刍动物氨中毒[3, ...
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