Daily intake was recorded. Fecal samples were collected on days 6 and 7. CP was determined by micro-Kjeldahl and DOM by an in vivo corrected in sacco technique.

• 每个实验期为7天，每日记录日粮的摄入量，粪便和饲料样品在第6、7天收集。 粗蛋白(CP)用micro-Kjeldahl法测定，日粮的可消化有机物(DOM)用体内校准尼龙袋法(sacco technique)测定。