The use of safe feed additives in diets of lactating animals has gained increasing interest. The effects of feeding lactating goats on diet supplemented with crude coriander oil at different levels were evaluated. Thirty multiparous lactating Damascus × Baladi goats (27.2 ± 1.0 kg BW) were used in 3 × 3 Latin square design (3 treatments, 3 periods, and 10 does per treatment). Each experimental period lasted 30 d (comprising 20 d of treatments adaptation and 10 d of sampling). The treatments consisted of the control basal diet with no crude coriander oil, the control basal diet supplemented daily with 0.95 g crude coriander oil/kg DM feed, or the control basal diet supplemented with 1.9 g crude coriander oil/kg DM feed. Crude coriander oil supplementation linearly increased (P < 0.05) daily milk production, yields of total solids, fat and lactose, and concentration of milk fat (P = 0.022) as well as feed conversion ratio (P = 0.021). Crude coriander oil supplementation linearly enhanced (P < 0.05) the apparent digestibilities of dry matter, organic matter, non-structural carbohydrates, and fibers, while the high crude coriander oil supplementation level increased apparent crude protein digestibility. Crude coriander oil supplementation linearly decreased ruminal pH and ciliate protozoal counts, and increased the concentrations (P < 0.05) of total volatile fatty acids, acetate, propionate and valerate. Crude coriander oil supplementation linearly increased (P < 0.05) the concentration of blood glucose and linearly decreased (P < 0.05) the serum levels of alanine transaminase and aspartate aminotransferase, while the high coriander oil treatment decreased the concentrations of total lipids (P = 0.038) and cholesterol (P = 0.021). In conclusion, crude coriander oil supplementation at 0.95 or 1.9 g crude coriander oil/kg DM feed improved nutrient utilization, milk production, and milk nutritive value. The high level of supplementation is recommended.

在哺乳期动物的饮食中使用安全的饲料添加剂越来越受到关注。评估了饲喂泌乳山羊对添加不同水平粗芫荽油的饮食的影响。30 只经产哺乳期大马士革山羊 × 巴拉迪山羊 (27.2 ± 1.0 kg BW) 用于 3 × 3 拉丁方设计（3 次处理，3 个时期，每次处理 10 次）。每个实验期持续30 d（包括20 d的处理适应和10 d的采样）。处理包括不含粗芫荽油的对照基础日粮、每天补充 0.95 g 粗芫荽油/kg DM 饲料的对照基础日粮或补充 1.9 g 粗芫荽油/kg DM 饲料的对照基础日粮。粗芫荽油补充剂线性增加（P < 0.05）每日产奶量，总固体产量，脂肪和乳糖，乳脂浓度（P = 0.022）以及饲料转化率（P = 0.021）。添加粗芫荽油线性提高（P < 0.05）干物质、有机物、非结构性碳水化合物和纤维的表观消化率，而高粗芫油添加水平提高表观粗蛋白消化率。添加粗芫荽油线性降低瘤胃 pH 值和纤毛虫原生动物计数，并增加总挥发性脂肪酸、乙酸盐、丙酸盐和戊酸盐的浓度（P < 0.05）。补充粗芫荽油线性增加（P < 0.05）血糖浓度，线性降低（P < 0.05）血清丙氨酸转氨酶和天冬氨酸转氨酶水平，而高香菜油处理降低了总脂质 (P = 0.038) 和胆固醇 (P = 0.021) 的浓度。总之，以 0.95 或 1.9 g 粗芫荽油/kg DM 饲料补充粗芫荽油可提高营养利用、产奶量和奶营养价值。建议高水平的补充。