Novel Linkages Between Bacterial Composition of Hindgut and Host Metabolic Responses to SARA Induced by High-Paddy Diet in Young Goats

作者：Kaijun Wang, Qiongxian Yan, Ao Ren, Mengli Zheng, Peihua Zhang, Zhiliang Tan, Chuanshe Zhou · 发表于：Frontiers in Veterinary Science · 年份：2022 · DOI：10.3389/fvets.2021.791482 · 被引用次数：11 · 研究领域：Gut microbiota and health、Ruminant Nutrition and Digestive Physiology、Rangeland Management and Livestock Ecology

At present, feeding a high-corn diet to goats is used to provide enough protein and energy supply to meet their higher dietary requirements. In fact, because corn grain is commonly scarce in the traditional rice cropping region of southern Asia, paddy is thereby used as an alternative feed applied in goat diets. However, the effects of the high paddy proportion on the microbiota and metabolites of the intestine are unclear. Here, we investigate the effects of high paddy proportion on bacterial community, potential function, and metabolic reaction in the cecum of goats. Sixteen Liuyang black goats were divided into two groups fed either a normal-paddy (NP) diet (55% concentrate) or a high-paddy (HP) diet (90% concentrate) for 5 weeks. Total short-chain fatty acid (SCFA) concentration was higher in the hindgut chyme of the HP-fed goats than in that of the NP-fed goats ( p = 0.001). The acetic proportion was significantly decreased and the propionic proportion was increased in the HP group ( p < 0.05). The HP diet decreased the value of pH, lactic acid concentration, and lactate dehydrogenase activity but increased the activity of alanine aminotransferase, aspartate aminotransferase, alkaline phosphatase, and amylase, together with lipopolysaccharide concentration in the hindgut chyme of goats ( p < 0.05). The abundance rates of the Eubacterium_coprostanoligenes_group was increased ( p = 0.050), whereas the abundance of Prevotellaceae_UCG_004, dgA-11_gut_group, Chr...