摘要
用4头装有长久性颈静脉导管的3月龄杂种小母猪,日粮添喂1μg/gCimaterol(CIM),研究5天内血清有关代谢物、酶活性和激素水平的变化。服食CIM后,小母猪血清脲氮明显降低,FFA持续升高,GPT活性上升,SS含量显著降低,β-内啡肽水平显著升高,胃泌素水平也略有升高。结果表明:CIM显著增强小母猪蛋白质代谢,增加氮沉积,同时CIM有显著的脂肪动员作用。CIM的营养分重分配作用机理可能与调控生长的神经内分泌系统有关。
Four Yorkshire-Erhualian growing gilts implanted with a chronic jugular vein catheter were used to investigate the short-term effect of cimaterol(CIM)on serum metabolite concentration,GPT activity and neuroendocrine hormone level When the gilts were treated with 1 μg/g CIM,SUN decreased significantly and maintained low level in the 5 days observed,while serum FFA maintained a high level Serum GPT activity and β-endorphin concentration increased too SS concentration significantly decreased and gastrin level elevated The results showed that CIM significantly improved protein anabolic metabolism and increased nitrogen deposition in gilts,while significantly stimulated fat degradation through altering SS and β-endorphin levels