摘要
围产期是奶牛泌乳周期中最为关键的阶段,该阶段奶牛代谢的最大特点是能量摄入减少而需求增加从而导致能量负平衡。改善围产期奶牛的营养条件,最大限度地缓解能量负平衡,对于充分发挥奶牛的生产性能至关重要。本文综述了围产期奶牛的代谢特点以及营养调控研究进展,旨在为提高奶牛的生产性能和健康水平提供新的思路。
The transition period is the most critical stage for combined with gradually increasing energy demands in early dairy cows. The decrease in DMI before parturition lactation, which makes dairy cows go through some degree of negative energy balance （NEB） around calving. The nutritional management strategy of transition cows is essential to minimize the NEB and give full play to the cow genetic potential. In this paper, metabolic characteristics and nutritional regulation of the transition cows were reviewed, which provide new ideas for improving the performance and health of dairy cows.
出处
《中国奶牛》
2013年第5期29-33,共5页
China Dairy Cattle
基金
中央级公益性科研院所基本科研业务费专项资金项目(2011cj-10-1)
国家"973"计划项目(2011CBl00805)资助
关键词
围产期奶牛
能量负平衡
营养调控
Transition cows
Negative energy balance
Nutritional regulation
