Linkage between the intestinal microbiota and residual feed intake in broiler chickens

作     者：Jing Liu Sydney N.Stewart Kelsy Robinson Qing Yang Wentao Lyu Melanie A.Whitmore Guolong Zhang Jing Liu;Sydney N.Stewart;Kelsy Robinson;Qing Yang;Wentao Lyu;Melanie A.Whitmore;Guolong Zhang

作者机构：Department of Animal and Food SciencesOklahoma State UniversityStillwaterOKUSA Poultry Production and Product Safety Research UnitUSDA-Agricultural Research Service(ARS)FayettevilleARUSA Institute of Quality and Standards for Agro-productsZhejiang Academy of Agricultural SciencesHangzhouChina 

出 版 物：《Journal of Animal Science and Biotechnology》 (畜牧与生物技术杂志（英文版）)

年 卷 期：2021年第12卷第3期

页      面：1073-1088页

核心收录：

学科分类：0710[理学-生物学] 0831[工学-生物医学工程（可授工学、理学、医学学位）] 0832[工学-食品科学与工程（可授工学、农学学位）] 090502[农学-动物营养与饲料科学] 1004[医学-公共卫生与预防医学(可授医学、理学学位)] 0905[农学-畜牧学] 0906[农学-兽医学] 09[农学] 0703[理学-化学] 0836[工学-生物工程] 

基　　金：This work was supported by the USDA National Institute of Food and Agriculture(grant no.2018-68003-27462) the Ralph F.and Leila W.Boulware Endowment Fund,and Oklahoma Agricultural Experiment Station Project H-3025 K.A.R.was supported by a USDA-NIFA Predoctoral Fellowship grant(2018-67011-28041) 

主　　题：Feed conversion ratio Feed efficiency Microbiota Poultry Residual feed intake 

摘      要：Background:Intestinal microbiota plays a key role in nutrient digestion and utilization with a profound impact on feed efficiency of livestock ***,the intestinal microbes that are critically involved in feed efficiency remain ***:To identify intestinal bacteria associated with residual feed intake(RFI)in chickens,male Cobb broiler chicks were individually housed from day 14 to day *** RFI values were calculated for 56 *** contents were collected from the ileum,cecum,and cloaca of each animal on day *** DNA was isolated and subjected to 16S rRNA gene *** microbiota was classified to the feature level using Deblur and QIIME *** and low RFI groups were formed by selecting 15 and 17 chickens with the most extreme RFI values for subsequent LEfSe comparison of the difference in the *** correlation analysis was further performed to identify correlations between the intestinal microbiota composition and ***:No significant difference in evenness,richness,and overall diversity of the microbiota in the ileum,cecum,or cloaca was observed between high and low RFI ***,LEfSe analysis revealed a number of bacterial features being differentially enriched in either high or low RFI *** correlation analysis further identified many differentially enriched bacterial features to be significantly correlated with RFI(P0.05).Importantly,not all short-chain fatty acid(SCFA)producers showed a positive association with *** two novel members of Oscillibacter and Butyricicoccus were more abundant in low-RFI,high-efficiency chickens,several other SCFA producers such as Subdoligranulum variabile and two related Peptostreptococcaceae members were negatively associated with feed ***,a few closely-related Lachnospiraceae family members showed a positive correlation with feed efficiency,while others of the same family displayed an opposite relationship.C