Research;
Institute;
Chinese;
Academy;
of;
Agricultural;
Sciences/Key;
Laboratory;
of;
Feed;
Biotechnology;
Ministry;
of;
Agriculture;
Beijing;
100081;
P.R.;
China;
General;
Station;
of;
Animal;
Husbandry;
Beijing;
100081;
P.R.;
China;
荷斯坦犊牛; 血清尿素氮; 养分消化率; 饮食治疗; 葡聚糖; 酵母; 反刍; 型材;