Role of milk carbohydrates in intestinal health of nursery pigs: a review  

作　　者：Ki Beom Jang Sung Woo Kim 

机构地区：[1]Department of Animal Science,North Carolina State University,Raleigh,NC 27695,USA

出　　处：《Journal of Animal Science and Biotechnology》2022年第3期628-641,共14页畜牧与生物技术杂志（英文版）

基　　金：funded by American Dairy Products Institute(Elmhurst,IL,USA);USDA-NIFA Hatch Fund(#02636,Washington DC,USA);North Carolina Agricultural Foundation(#660101,Raleigh,NC,USA)。

摘　　要：Intestinal health is essential for the resistance to enteric diseases and for nutrient digestion and absorption to support growth.The intestine of nursery pigs are immature and vulnerable to external challenges,which cause negative impacts on the structure and function of the intestine.Among nutritional interventions,the benefits of milk are significant for the intestinal health of pigs.Milk coproducts have traditionally been used in starter feeds to improve the growth of nursery pigs,but their use is somewhat limited due to the high costs and potential risks of excessive lactose on the intestine.Thus,understanding a proper feeding level of milk carbohydrates is an important start of the feeding strategy.For nursery pigs,lactose is considered a highly digestible energy source compared with plant-based starch,whereas milk oligosaccharides are considered bioactive compounds modulating intestinal immunity and microbiota.Therefore,milk carbohydrates,mainly composed of lactose and oligosaccharides,have essential roles in the intestinal development and functions of nursery pigs.The proper feeding levels of lactose in starter feeds could be variable by weaning age,body weight,or genetic lines.Effects of lactose and milk oligosaccharides have been broadly studied in human health and animal production.Therefore,this review focuses on the mechanisms of lactose and milk oligosaccharides affecting intestinal maturation and functions through modulation of enterocyte proliferation,intestinal immunity,and intestinal microbiota of nursery pigs.

关 键 词：Intestinal health LACTOSE Milk carbohydrates Milk oligosaccharides Nursery pig 

分 类 号：S828[农业科学—畜牧学]