The nutritional manipulation progress to improve the CLA content in the milk fat of lactating cows was reviewed.
本文介绍了一些重要的营养调控措施，以提高奶牛乳脂中CLA含量。
Some proteins or the profile of a set of proteins present in the milk of lactating cows may be related to the pregnancy status of dairy cows.
牛奶中某些蛋白，或者全部蛋白谱图状态可能与奶牛妊娠阶段有关。
The objective of this study was to evaluate CPM model in terms of improvement in performance of lactating cows by balancing dietary energy and protein.
本文旨在评价使用CPM模型改善日粮能氮平衡和提高奶牛生产性能的效果。
The effects of different diets on dry matter intakes( DMI)and digestion in lactating dairy cows were investigated.
本试验旨在研究在不同日粮条件下对奶牛干物质采食量（DMI）及养分消化率的影响。
The situation of nutrient digestion and metabolism was compared between lactating and dry yak cows fed with the same diet.
在同一日粮条件下，对泌乳牦牛和干奶牦牛的消化代谢能力进行了比较研究。
The provision of undegradable protein(fishmeal or protected soya)to the diet of lactating dairy cows is not the best method to raise the protein content in milk and the milk yield.
给产奶牛补加过瘤胃蛋白质如鱼粉和保护的大豆饼粕对提高乳蛋白含量和乳产量并不是最好的方法。
Forty-two lactating Holstein cows were used in a randomized complete block design.
采用完全随机化区组设计进行试验。
Abstract: the aim of this study was to analysis the effect of Astragalus polysaccharides (APS) on antioxidant capacity of lactating Holstein cows.
摘要：本实验旨在研究黄芪多糖对泌乳期荷斯坦奶牛抗氧化能力的影响。
Abstract: the aim of this study was to analysis the effect of Astragalus polysaccharides (APS) on antioxidant capacity of lactating Holstein cows.
摘要：本实验旨在研究黄芪多糖对泌乳期荷斯坦奶牛抗氧化能力的影响。
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