[1] BÄCKHED F, LEY R E, SONNENBURG J L, et al.Host-bacterial mutualism in the human intestine[J].Science, 2005, 307(5717):1915-1920.

[2] KNUDSEN K E B, HEDEMANN M S, LÆRKE H N.The role of carbohydrates in intestinal health of pigs[J].Animal Feed Science and Technology, 2012, 173(1/2):41-53.
[3] QAISRANI S N, VAN KRIMPEN M M, KWAKKEL R P, et al.Dietary factors affecting hindgut protein fermentation in broilers:a review[J].World's Poultry Science Journal, 2015, 71(1):139-160.

[4] 崔艺燕, 田志梅, 李贞明, 等.植物提取物的生物学功能及其在仔猪生产上的应用[J].中国畜牧兽医, 2018, 45(12):3419-3430. CUI Y Y, TIAN Z M, LI Z M, et al.Progress of biological functions of plant extracts and their application in piglets[J].China Animal Husbandry & Veterinary Medicine, 2018, 45(12):3419-3430.(in Chinese)
[5] NAM J S, SHARMA A R, NGUYEN L T, et al.Application of bioactive quercetin in oncotherapy:from nutrition to nanomedicine[J].Molecules, 2016, 21(1):108.
[6] PARK J H, SURESHKUMAR S, KIM I H.Influences of dietary flavonoid (quercetin) supplementation on growth performance and immune response of growing pigs challenged with
Escherichia coli lipopolysaccharide[J].Journal of Animal Science and Technology, 2020, 62(5):605-613.

[7] ZHANG S, KIM I H.Effect of quercetin (flavonoid) supplementation on growth performance, meat stability, and immunological response in broiler chickens[J].Livestock Science, 2020, 242:104286.
[8] 刘红南, 滕楠, 李垚, 等.饲粮添加槲皮素对蛋鸡蛋品质和蛋组分的影响[J].动物营养学报, 2014, 26(8):2246-2252. LIU H N, TENG N, LI Y, et al.Effects of dietary quercetin on egg quality and egg components in laying hens[J].Chinese Journal of Animal Nutrition, 2014, 26(8):2246-2252.(in Chinese)
[9] WANG C, WEI S Y, CHEN N N, et al.Characteristics of gut microbiota in pigs with different breeds, growth periods and genders[J/OL].Microbial Biotechnology(2021-02-10)[2021-10-21].https://pubmed.ncbi.nlm.nih.gov/33566446.
[10] ZHAO W J, WANG Y P, LIU S Y, et al.The dynamic distribution of porcine microbiota across different ages and gastrointestinal tract segments[J].PLoS One, 2015, 10(2):e0117441.
[11] 王淑楠.茶树油对断奶仔猪生长性能及肠道屏障功能的影响[D].硕士学位论文.扬州:扬州大学, 2018. WANG S N.Effects of tea tree oil on growth performance and intestinal barrier function of weaned piglets[D].Master's Thesis.Yangzhou:Yangzhou University, 2018.(in Chinese)
[12] 中华人民共和国国家质量监督检验检疫总局, 中国国家标准化管理委员会.饲料中盐酸不溶灰分的测定:GB/T 23742-2009[S].北京:中国标准出版社, 2009. General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China.Animal feeding stuffs-determination of ash insoluble in hydrochloric acid:GB/T 23742-2009[S].Beijing:China Standards Press, 2009.(in Chinese)
[13] 贺建华.饲料分析与检测[M].北京:中国农业出版社, 2005. HE J H.Feed analysis and detection[M].Beijing:China Agriculture Press, 2005.(in Chinese)
[14] YU M, ZHANG C J, YANG Y X, et al.Long-term effects of early antibiotic intervention on blood parameters, apparent nutrient digestibility, and fecal microbial fermentation profile in pigs with different dietary protein levels[J].Journal of Animal Science and Biotechnology, 2018, 9(1):175-186.
[15] CHANEY A L, MARBACH E P.Modified reagents for determination of urea and ammonia[J].Clinical Chemistry, 1962, 8(2):130-132.

[16] YANG Y X, MU C L, ZHANG J F, et al.Determination of biogenic amines in digesta by high performance liquid chromatography with precolumn dansylation[J].Analytical Letters, 2014, 47(8):1290-1298.

[17] ZOU Y, XIANG Q H, WANG J, et al.Effects of oregano essential oil or quercetin supplementation on body weight loss, carcass characteristics, meat quality and antioxidant status in finishing pigs under transport stress[J].Livestock Science, 2016, 192:33-38.
[18] ABDEL-LATIF M A, ELBESTAWY A R, EL-FAR A H, et al.Quercetin dietary supplementation advances growth performance, gut microbiota, and intestinal mRNA expression genes in broiler chickens[J].Animals, 2021, 11(8):2302.
[19] SHABBIR U, RUBAB M, DALIRI E B M, et al.Curcumin, quercetin, catechins and metabolic diseases:the role of gut microbiota[J].Nutrients, 2021, 13(1):206.
[20] CHEN Z G, YUAN Q L, XU G R, et al.Effects of quercetin on proliferation and H
2O
2-induced apoptosis of intestinal porcine enterocyte cells[J].Molecules, 2018, 23(8):2012.
[21] 高尚, 王恬.仔猪营养性腹泻调控的研究进展[J].中国饲料, 2010(18):19-23. GAO S, WANG T.Research progress of the control measure of nutritional diarrhea in piglets[J].China Feed, 2010(18):19-23.(in Chinese)
[22] MEMARIANI H, MEMARIANI M, GHASEMIAN A.An overview on anti-biofilm properties of quercetin against bacterial pathogens[J].World Journal of Microbiology and Biotechnology, 2019, 35(9):143.
[23] 金芳, 李垚, 刘红南, 等.槲皮素对39周龄蛋鸡生产性能的影响[J].中国畜牧杂志, 2013, 49(5):62-65. JIN F, LI Y, LIU H N, et al.Effect of quercetin on production performance of 39 weeks laying hens[J].Chinese Journal of Animal Science, 2013, 49(5):62-65.(in Chinese)
[24] 王盛楠.槲皮素对AA肉鸡蛋白质消化利用的作用及机制[D].硕士学位论文.哈尔滨:东北农业大学, 2018. WANG S N.Effects and mechanism of quercetin on protein digestion and utilization in AA broilers[D].Master's Thesis.Harbin:Northeast Agricultural University, 2018.(in Chinese)
[25] 姚佳颖, 毛彦军, 王杉杉, 等.槲皮素对猪肠上皮细胞利用蛋白质的作用机制[J].动物营养学报, 2021, 33(1):553-562. YAO J Y, MAO Y J, WANG S S, et al.Mechanism of quercetin on protein availability in porcine intestinal epithelial cells[J].Chinese Journal of Animal Nutrition, 2021, 33(1):553-562.(in Chinese)
[26] ZOU Y, WEI H K, XIANG Q H, et al.Protective effect of quercetin on pig intestinal integrity after transport stress is associated with regulation oxidative status and inflammation[J].Journal of Veterinary Medical Science, 2016, 78(9):1487-1494.

[27] 时艺霖, 赵胤博, 王占彬, 等.紫苏籽提取物对蛋鸡产蛋高峰后期血液生理生化指标的影响[J].家畜生态学报, 2015, 36(10):39-44. SHI Y L, ZHAO Y B, WANG Z B, et al.Effect of
Perilla frutescens seed extracts on blood physiological and biochemical indexes of layers during the late laying peak period[J].Journal of Domestic Animal Ecology, 2015, 36(10):39-44.(in Chinese)
[28] TANG Z R, YIN Y L, NYACHOTI C M, et al.Effect of dietary supplementation of chitosan and galacto-mannan-oligosaccharide on serum parameters and the insulin-like growth factor-Ⅰ mRNA expression in early-weaned piglets[J].Domestic Animal Endocrinology, 2005, 28(4):430-441.

[29] 李贤, 李敬双, 于洋.洋葱槲皮素对肉鸡肉品质、血液生化及免疫功能的影响[J].饲料研究, 2021, 44(6):45-49. LI X, LI J S, YU Y.Effect of onion quercetin on meat quality, blood biochemistry and immune function of broilers[J].Feed Research, 2021, 44(6):45-49.(in Chinese)
[30] METGES C C, PETZKE K J, HENNIG U.Gas chromatography/combustion/isotope ratio mass spectrometric comparison of N-acetyl- and N-pivaloyl amino acid esters to measure 15N isotopic abundances in physiological samples:a pilot study on amino acid synthesis in the upper gastro-intestinal tract of minipigs[J].Journal of Mass Spectrometry, 1996, 31(4):367-376.

[31] LIU H N, LIU Y, HU L L, et al.Effects of dietary supplementation of quercetin on performance, egg quality, cecal microflora populations, and antioxidant status in laying hens[J].Poultry Science, 2014, 93(2):347-353.

[32] WANG W, CHEN L P, ZHOU R, et al.Increased proportions of
Bifidobacterium and the
Lactobacillus group and loss of butyrate-producing bacteria in inflammatory bowel disease[J].Journal of Clinical Microbiology, 2014, 52(2):398-406.

[33] WANG Y N, LEONG L E X, KEATING R L, et al.Opportunistic bacteria confer the ability to ferment prebiotic starch in the adult cystic fibrosis gut[J].Gut Microbes, 2019, 10(3):367-381.

[34] YU M, LI Z M, CHEN W D, et al.Microbiome-metabolomics analysis investigating the impacts of dietary starch types on the composition and metabolism of colonic microbiota in finishing pigs[J].Frontiers in Microbiology, 2019, 10:1143.
[35] MU C L, YANG Y X, SU Y, et al.Differences in microbiota membership along the gastrointestinal tract of piglets and their differential alterations following an early-life antibiotic intervention[J].Frontiers in Microbiology, 2017, 8:797.
[36] BARNICH N, CARVALHO F A, GLASSER A L, et al.CEACAM6 acts as a receptor for adherent-invasive
E. coli, supporting ileal mucosa colonization in Crohn disease[J].The Journal of Clinical Investigation, 2007, 117(6):1566-1574.

[37] MAO S Y, ZHU W Y.Effects of six flavonoid compounds addition on short-chain fatty acids production and human fecal microbial community change during
in vitro fermentation[J].African Journal of Microbiology Research, 2011, 5(26):4484-4491.
[38] 郭长征.高精料日粮条件下添加槲皮素对山羊瘤胃发酵及蹄部健康的影响[D].硕士学位论文.南京:南京农业大学, 2017. GUO C Z.Effects of quercetin addition on rumen fermentation and hoof health in goats fed a high-concentrate diet[D].Master's Thesis.Nanjing:Nanjing Agricultural University, 2017.(in Chinese)
[39] RIST V T S, WEISS E, EKLUND M, et al.Impact of dietary protein on microbiota composition and activity in the gastrointestinal tract of piglets in relation to gut health:a review[J].Animal, 2013, 7(7):1067-1078.

[40] YU M, LI Z M, CHEN W D, et al.
Hermetia illucens larvae as a Fishmeal replacement alters intestinal specific bacterial populations and immune homeostasis in weanling piglets[J].Journal of Animal Science, 2020, 98(3):skz395.
[41] DAVILA A M, BLACHIER F, GOTTELAND M, et al.Re-print of "intestinal luminal nitrogen metabolism:role of the gut microbiota and consequences for the host"[J].Pharmacological Research, 2013, 69(1):114-126.

[42] YANG Y X, MU C L, LUO Z, et al.Bromochloromethane, a methane analogue, affects the microbiota and metabolic profiles of the rat gastrointestinal tract[J].Applied and Environmental Microbiology, 2016, 82(3):778-787.

[43] 余苗, 李贞明, 陈卫东, 等.不同淀粉类型饲粮对育肥猪盲肠食糜主要微生物及其代谢产物的影响[J].动物营养学报, 2020, 32(2):613-625. YU M, LI Z M, CHEN W D, et al.Effects of different starch type diets on main microbes and their metabolites in cecal digesta of finishing pigs[J].Chinese Journal of Animal Nutrition, 2020, 32(2):613-625.(in Chinese)