Supplemental Table S2. Least square means of BW, DMI, milk yield (MY) and fat- and protein-corrected milk yield (FPCMY), milk protein yield (MPY), milk composition (milk fat, milk protein, milk lactose and MUN), milk N efficiency (MNE) and feed efficiency for the CTRL, MetLys and MetLysHis treatment groups in the pre-experimental, depletion and cross-back period.

Supplemental Table S2. Least square means of BW, DMI, milk yield (MY) and fat- and protein-corrected milk yield (FPCMY), milk protein yield (MPY), milk composition (milk fat, milk protein, milk lactose and MUN), milk N efficiency (MNE) and feed efficiency for the CTRL, MetLys and MetLysHis treatment groups in the pre-experimental, depletion and cross-back period.补充表S2：列出了对照组（CTRL）、甲硫氨酸-赖氨酸处理组（MetLys）与甲硫氨酸-赖氨酸-组氨酸处理组（MetLysHis）在实验前期、耗竭期及交叉回溯期的体重（BW，Body Weight）、干物质采食量（DMI，Dry Matter Intake）、产奶量（MY，Milk Yield）、乳脂乳蛋白校正产奶量（FPCMY，Fat- and Protein-Corrected Milk Yield）、乳蛋白产量（MPY，Milk Protein Yield）、乳成分（含乳脂、乳蛋白、乳糖及乳尿素氮（MUN，Milk Urea Nitrogen））、乳氮效率（MNE，Milk Nitrogen Efficiency）与饲料效率的最小二乘均值。