Nutrition strategies to control post-weaning diarrhea of piglets: From the perspective of feeds

作者：Qingsong Tang, Tianyi Lan, Chengyu Zhou, Jingchun Gao, Liuting Wu, Haiyang Wei, Wenxue Li, Zhiru Tang, Wenjie Tang, Hui Diao, Yetong Xu, Xie Peng, Jiaman Pang, Xuan Zhao, Zhihong Sun · 发表于：Animal nutrition · 年份：2024 · DOI：10.1016/j.aninu.2024.03.006 · 被引用次数：43 · 研究领域：Animal Nutrition and Physiology、Viral gastroenteritis research and epidemiology、Effects of Environmental Stressors on Livestock

Post-weaning diarrhea (PWD) is a globally significant threat to the swine industry. Historically, antibiotics as well as high doses of zinc oxide and copper sulfate have been commonly used to control PWD. However, the development of bacterial resistance and environmental pollution have created an interest in alternative strategies. In recent years, the research surrounding these alternative strategies and the mechanisms of piglet diarrhea has been continually updated. Mechanically, diarrhea in piglets is a result of an imbalance in intestinal fluid and electrolyte absorption and secretion. In general, enterotoxigenic Escherichia coli (ETEC) and diarrheal viruses are known to cause an imbalance in the absorption and secretion of intestinal fluids and electrolytes in piglets, resulting in diarrhea when Cl- secretion-driven fluid secretion surpasses absorptive capacity. From a perspective of feedstuffs, factors that contribute to imbalances in fluid absorption and secretion in the intestines of weaned piglets include high levels of crude protein (CP), stimulation by certain antigenic proteins, high acid-binding capacity (ABC), and contamination with deoxynivalenol (DON) in the diet. In response, efforts to reduce CP levels in diets, select feedstuffs with lower ABC values, and process feedstuffs using physical, chemical, and biological approaches are important strategies for alleviating PWD in piglets. Additionally, the diet supplementation with additives such as vitamins and na...