中甸牦牛、迪庆黄牛和犏牛的乳的主要营养成分比较

Comparison of the Major Nutritional Components of Milk from Zhongdian Yak, Diqing Yellow Cattle and Cattle-Yak

DOI：10.3969/j.issn.1673-1689.2015.12.010

中文关键词: 中甸牦牛 迪庆黄牛 犏牛 云岭牛 乳营养成分

英文关键词: Zhongdian yak, Diqing yellow cattle, Cattle-yak, Yunling cattle, milk nutritional components

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中文摘要:

用Combi Foss FT+乳成分、体细胞联用仪测定放牧条件下的中甸牦牛、迪庆黄牛和犏牛的乳的主要营养成分，并与同期舍饲条件下的荷斯坦牛、西门塔尔牛和云岭牛的乳营养成分比较。结果显示：中甸牦牛、迪庆黄牛和犏牛的乳脂肪、乳蛋白质、乳糖和总固形物的质量分数分别为6.24%、4.95%、4.97%、20.11%， 6.75%、4.52%、4.95%、19.91%和7.80%、4.60%、4.98%、20.85%，比较各乳营养成分含量差异不显著 （P >0.05）；中甸牦牛、迪庆黄牛和犏牛的乳脂肪、乳蛋白质和总固形物的含量高于荷斯坦牛、西门塔尔牛和云岭牛的（P0.05）；乳成分中的蛋白质含量与脂肪、总固形物含量，脂肪含量与总固形物含量之间均存在显著的正相关（P

英文摘要:

The major nutritional components in milk from Zhongdian yak（ZY），Diqing yellow cattle（DYC） and cattle-yak（CY） were analyzed by CombiFossTM FT+，a combination instrument consisting of the MilkoScanTM FT+ and the FossomaticTM FC for the determination of milk components. These nutritional components were compared with those from Holstein，Simmental and Yunling cattle bred under the same shed conditions. The results indicated that the contents of milk fat，protein，lactose and total solids were 6.24%，4.95%，4.97% and 20.11% for ZY，6.75%，4.52%，4.95% and 19.91% for DCY，and 7.80%，4.60% and 20.85% for CY. The differences of various milk nutrients for ZD，DYC and CY were not significant （P>0.05）. The contents of fat，protein and total solids in ZY，DYC and CY were significantly higher than those from Holstein，Simmental and Yunling cattle （P0.05），was significantly higher than that of Yunling cattle （P

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