文献类型： 外文期刊

作者： Diao, Qiyu ¹ ; Zhang, Rong ¹ ; Fu, Tong ³ ;

作者机构： 1.Chinese Acad Agr Sci, Key Lab Feed Biotechnol, Minist Agr, Feed Res Inst, Beijing 100081, Peoples R China

2.Univ Liege, Precis Livestock & Nutr Unit, Gembloux Agrobio Tech, Passage Deportes 2, B-5030 Gembloux, Belgium

3.Henan Agr Univ, Coll Anim Sci & Vet Med, Zhengzhou 450002, Henan, Peoples R China

关键词： calves; rumen; epithelium; microbiota; diet; feed additives; feeding management

期刊名称：ANIMALS （ 影响因子：2.752； 五年影响因子：2.942 ）

ISSN： 2076-2615

年卷期： 2019 年 9 卷 8 期

页码：

收录情况： SCI

摘要： Simple Summary The rumen is an important digestive organ that plays a key role in the growth, production performance and health of ruminants. Promoting rumen development has always been a key target of calf nutrition. Current research reveals that an early feeding regime and nutrition have effects on rumen development and the establishment of rumen microbiota. The effects may persist for a long time, and consequently, impact the lifetime productive performance and health of adult ruminants. The most sensitive window for rumen manipulation may exist in the postnatal and weaning period. Thus, the early feeding regime and nutrition of calves deserve further research. The establishment of the rumen bacterial community is a mysterious and complex process. The development of microbial 16S rDNA gene sequencing and metagenome analysis enables us to learn more about the establishment of rumen microbes and their interactions in host gastrointestinal (GI) tract development. Digestive tract development in calves presents a uniquely organized system. Specifically, as the rumen develops and becomes colonized by microorganisms, a calf physiologically transitions from a pseudo-monogastric animal to a functioning ruminant. Importantly, the development of rumen in calves can directly affect the intake of feed, nutrient digestibility and overall growth. Even minor changes in the early feeding regime and nutrition can drastically influence rumen development, resulting in long-term effects on growth, health, and milk yields in adult cattle. Rumen development in newborn calves is one of the most important and interesting areas of calf nutrition. This paper presents a comprehensive review of recent studies of the gastrointestinal (GI) tract development in calves. Moreover, we also describe the effect of the environment in shaping the GI tract, including diet, feed additives and feeding management, as well as discuss the strategies to promote the physiological and microbiological development of rumen.