摘要
犊牛、后备牛是高产奶牛的基础,后备牛阶段的生长发育对奶牛的整个一生都至关重要。对奶牛后备牛阶段的生理特点、营养物质需要、合理的配种和分娩年龄进行了论述。
Calf and heifer are the foundation of high-yielding dairy cows. The body growth and development of tissues and organs in heifer period play a vital important rule throughout whole life. Physiological characteristics, nutrient requirement, reasonable breeding and age on childbirth for calf and heifer were discussed.
出处
《乳业科学与技术》
2009年第3期101-105,共5页
JOURNAL OF DAIRY SCIENCE AND TECHNOLOGY
基金
国家"十一五"科技支撑计划"南方大城市郊区牛场环境控制技术及奶牛应激综合防控技术研究与产业化示范
优质后备奶牛培育和及时配种关键技术研究与应用"(No.2006BAD04A14)
关键词
后备奶牛
犊牛
高产奶牛
犊牛生长发育
奶牛
heifer
calves
high-yielding dairy cows
growth and development of calves
dairy cow
