我国幼龄反刍动物生长与消化生理发育特点

2017-07-19 00:17:07

刁其玉,张蓉

(中国农业科学院饲料研究所,奶牛营养学北京市重点实验室,农业部饲料生物技术重点实验室,北京 100081)

摘 要:幼龄反刍动物是成年牛羊的后备力量,其培育的优劣直接影响到成年后的生产性能,并与畜产品品质及安全息息相关。本文从幼龄反刍动物的机体生长、物质消化代谢、瘤胃的发育及微生物区系的建立及表观遗传学在幼畜早期培育的探索等方面进行综述,系统介绍犊牛、羔羊的生长发育规律、生理营养特点以及早期培育与基因表达的关系,为幼畜健康培育提供理论支持。

关键词:幼龄反刍动物;犊牛;羔羊; 生长发育;生理营养

中图分类号:S815.4

文献标识码:A

DOI编号:10.19556/j.0258-7033.2017-07-004

Growth and Digestive Physiology Characteristies of Young Ruminants in China

DIAO Qi-yu, ZHANG Rong

(Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing Key Laboratory for Dairy Cow Nutrition, Key Laboratory of Feed Biotechnology of the Ministry of Agriculture, Beijing 100081, China)

Abstract: Young ruminants are the reserve forces for the cattle and sheep. Early rearing of young ruminants directly influence subsequent production performance of adults and quality of livestock products. Three aspects were summarized in this paper, which are growth rate , digestion, rumen development , microbiota and epigenetics. Growth rules, physiology characteristics and relationship between early rearing and gene expression in young ruminants were systematically introduced. It will provide theoretical basis for the establishment of a scientific early rearing system.

Key words: Young ruminants; Calf; Lamb; Rearing; Nutrition physiology; Epigenetics

上一篇回2017年7月第7期目录 下一篇 (方向键翻页,回车键返回目录)加入书签

© 2016 毕业论文网 > 我国幼龄反刍动物生长与消化生理发育特点