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中文摘要：
围产期奶牛,特别是高产奶牛普遍处于能量负平衡状态,容易导致生产性能降低和酮病、脂肪肝等代谢病的发生。通过育种、改善日粮和使用添加剂等技术措施,可提高奶牛的干物质采食量（dry matter intake,DMI）,在一定程度上提高奶牛的生产性能和改善奶牛的健康状况。作者对奶牛采食量的意义及其影响因素进行了叙述,并提出了一些可以提高奶牛采食量的技术措施。
英文摘要：
The periparturient dairy cows, especially for highly produce dairy cows, are in the state of negatively energy balanced condition generally,which leads to degrade of production trait and metabolic diseases such as ketosis and fatty liver. The dry matter intake of dairy cows is increased by the breeding, improvement feed formula and useing additives,which raises pro- duction and improved health status of dairy cows for some extent. The paper describes the significances and the influencing factors of dairy cows dry matter intake,and also draws off some technique steps to increase dairy cows dry matter intake.
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