饲粮能量水平对草原红牛代谢及血清指标的影响

刘基伟,张相伦,李旭,王蕾,秦立红,班志斌,吴健,张国梁,万发春

Effects of Dietary Energy Levels on Metabolism and Serum Parameters of Steppe Red Cattle

LIU JiWei,ZHANG XiangLun,LI Xu,WANG Lei,QIN LiHong,BAN ZhiBin,WU Jian,ZHANG GuoLiang,WAN FaChun

表4 饲粮能量水平对草原红牛氮代谢的影响

Table 4 Effects of dietary energy levels on nitrogen metabolism indexes of Steppe Red cattle

项目 Items	低能组 LE	中能组 ME	高能组 HE	SEM	P值 P value
项目 Items	低能组 LE	中能组 ME	高能组 HE	SEM	能量Energy	线性Linear
粪氮排泄量FNE (g·d^-1)	53.31	54.97	48.49	1.88	0.378	0.319
尿氮排泄量UNE (g·d^-1)	11.00	11.33	11.02	0.24	0.854	0.970
消化氮Digestible N（g·d^-1)	119.90	119.92	122.60	1.73	0.798	0.569
沉积氮Retained N (g·d^-1)	108.90	108.60	111.58	1.71	0.772	0.566
氮表观消化率N digestibility (%)	69.22	68.57	71.66	1.05	0.495	0.381
氮表观代谢率N metabolic rate (%)	62.88	62.09	65.22	1.04	0.485	0.390