摘要
围产期奶牛历经了产犊与泌乳,其营养状况直接影响乳牛的生产性能。本试验就日粮能量水平对奶牛围产期干物质采食量、体重变化、产奶量、乳成分、体况及产后首次配种时间的影响进行了研究分析,评价其经济效益,探讨初产母牛围产期和泌乳前期合理的日粮能量水平配制,以期为夏季产犊奶牛的科学饲养提供理论依据和数据参考。
Their nutrition status directly act on the production performance and reproductive performance of dairy cows during perinatal period by calving and lactating, the study was conducted to investigate the effects of dietary energy levels on dry matter intake, body weight variation, milk yield, milk composition, body condition and the average days of the first service after delivery, in order to evaluate their feeding economic benefits,and to provide for reasonably diet formulation during this period, it is of theoretical and practical significance on topic seletion,using the results to provid the scientific feeding after calving in summer with important reference value.
出处
《中国奶牛》
2013年第3期32-38,共7页
China Dairy Cattle
基金
河北省科技计划项目"奶牛围产期饲养关键技术研究及在农区牧场中应用(12250422D)"
关键词
奶牛
围产期
能量水平
生产性能
Dairy Cows
Perinatal Period
Energy Level
Production Performance
