[1] BARTON M D.Antibiotic use in animal feed and its impact on human healt[J].Nutrition Research Reviews,2000,13(2):279-299.

[2] VAN DEN BOGAARD A E J M,LONDON N,STOBBERINGH E E.Antimicrobial resistance in pig faecal samples from the Netherlands (five abattoirs) and Sweden[J].Journal of Antimicrobial Chemotherapy,2000,45(5):663-671.

[3] SØRUM H,SUNDE M.Resistance to antibiotics in the normal flora of animals[J].Veterinary Research,2001,32(3/4):227-241.

[4] 李春凤,林显华,谷巍.枯草芽孢杆菌在饲料生产及环境防治中的应用[J].中国饲料,2013(1):10-12,17.
[5] LEE K W,LEE S H,LILLEHOJ H S,et al.Effects of direct-fed microbials on growth performance,gut morphometry,and immune characteristics in broiler chickens[J].Poultry Science,2010,89(2):203-216.

[6] MOLNÁR A K,PODMANICZKY B,KÜRTI P,et al.Effect of different concentrations of
Bacillus subtilis on immune response of broiler chickens[J].Probiotics and Antimicrobial Proteins,2011,3(1):8-14.

[7] JEONG J S,KIM I H.Effect of
Bacillus subtilis C-3102 spores as a probiotic feed supplement on growth performance,noxious gas emission,and intestinal microflora in broilers[J].Poultry Science,2014,93(12):3097-3103.

[8] NGUYEN A T V,NGUYEN D V,TRAN M T,et al.Isolation and characterization of
Bacillus subtilis CH 16 strain from chicken gastrointestinal tracts for use as a feed supplement to promote weight gain in broilers[J].Letters in Applied Microbiology,2015,60(6):580-588.

[9] 赵姝娴,贾俊涛,赵宇飞.枯草芽孢杆菌和菊粉对产蛋后期蛋鸡生产性能、蛋品质及肠道绒毛形态的影响[J].中国饲料,2018(24):44-48.
[10] 秦瑶,王苇,郭秉娇,等.2株枯草芽孢杆菌对大肠杆菌和沙门氏菌的体外抑菌试验研究[J].中国畜牧兽医,2014,41(1):207-210
[11] GUO X H,LI D F,LU W Q,et al.Screening of
Bacillus strains as potential probiotics and subsequent confirmation of the
in vivo effectiveness of
Bacillus subtilis MA139 in pigs[J].Antonie van Leeuwenhoek,2006,90(2):139-146.

[12] WU B Q,ZHANG T,GUO L Q,et al.Effects of
Bacillus subtilis KD1 on broiler intestinal flora[J].Poultry Science,2011,90(11):2493-2499.

[13] CAVAZZONI V,ADAMI A,CASTROVILLI C.Performance of broiler chickens supplemented with Bacillus coagulans as probiotic[J].British Poultry Science,1998,39(4):526-529.

[14] LEE K W,LILLEHOJ H S,JANG S I,et al.Effects of salinomycin and
Bacillus subtilis on growth performance and immune responses in broiler chickens[J].Research in Veterinary Science,2014,97(2):304-308.

[15] PARK J H,KIM I H.Supplemental effect of probiotic
Bacillus subtilis B2A on productivity,organ weight,intestinal
Salmonella microflora,and breast meat quality of growing broiler chicks[J].Poultry Science,2014,93(8):2054-2059.

[16] 潘康成,王振华,张钧利,等.枯草芽孢杆菌制剂对肉鸡生长性能的影响研究[J].饲料广角,2004(21):33-35.
[17] 余东游,毛翔飞,秦艳,等.枯草芽孢杆菌对肉鸡生长性能及其抗氧化和免疫功能的影响[J].中国畜牧杂志,2010,46(3):22-25.
[18] 胡长庆,赵京扬,杨季芳,等.芽孢杆菌对鸡生长性能和盲肠细菌群落的影响[J].中国畜牧兽医,2008,35(10):32-34.
[19] 张晓慧.枯草芽孢杆菌对AA鸡生长性能的影响及其机理研究[D].硕士学位论文.湛江:广东海洋大学,2013.
[20] PAIVA D,WALK C,MCELROY A.Dietary calcium,phosphorus,and phytase effects on bird performance,intestinal morphology,mineral digestibility,and bone ash during a natural necrotic enteritis episode[J].Poultry Science,2014,93(11):2752-2762.

[21] MONTAGNE L,PLUSKE J R,HAMPSON D J.A review of interactions between dietary fibre and the intestinal mucosa,and their consequences on digestive health in young non-ruminant animals[J].Animal Feed Science and Technology,2003,108(1/2/3/4):95-117.
[22] 易中华,胥传来,计成,等.果寡糖和枯草芽孢杆菌对肉鸡肠道菌群数量及生产性能的影响[J].中国畜牧杂志,2005,41(12):11-14.
[23] MA Y B,WANG W W,ZHANG H J,et al.Supplemental
Bacillus subtilis DSM 32315 manipulates intestinal structure and microbial composition in broiler chickens[J].Scientific Reports,2018,8:15358,doi:10.1038/s41598-018-33762-8.
[24] AHIR V B,KORINGA P G,BHATT V D,et al.Metagenomic analysis of poultry gut microbes[J].Indian Journal of Poultry Science,2010,45(2):111-114.
[25] OAKLEY B B,LILLEHOJ H S,KOGUT M H,et al.The chicken gastrointestinal microbiome[J].FEMS Microbiology Letters,2014,360(2):100-112.

[26] PANDIT R J,HINSU A T,PATEL N V,et al.Microbial diversity and community composition of caecal microbiota in commercial and indigenous Indian chickens determined using 16S rDNA amplicon sequencing[J].Microbiome,2018,6:115,doi:10.1186/s40168-018-0501-9.
[27] AWAD W A,MANN E,DZIECIOL M,et al.Age-related differences in the luminal and mucosa-associated gut microbiome of broiler chickens and shifts associated with
Campylobacter jejuni infection[J].Frontiers inCellular and Infection Microbiology,2016,6:154.
[28] MANCABELLI L,FERRARIO C,MILANI C,et al.Insights into the biodiversity of the gut microbiota of broiler chickens[J].Environmental Microbiology,2016,18(12):4727-4738.

[29] SHAUFI M A M,SIEO C C,CHONG C W,et al.Deciphering chicken gut microbial dynamics based on high-throughput 16S rRNA metagenomics analyses[J].Gut Pathogens,2015,7:4,doi:10.1186/s13099-015-0051-7.
[30] RAZA G S,PUTAALA H,HIBBERD A A,et al.Polydextrose changes the gut microbiome and attenuates fasting triglyceride and cholesterol levels in Western diet fed mice[J].Scientific Reports,2017,7:5294,doi:10.1038/s41598-017-05259-3.
[31] MENNI C,LIN C H,CECELJA M,et al.Gut microbial diversity is associated with lower arterial stiffness in women[J].European Heart Journal,2018,39(25):2390-2397.

[32] LIN Z,YE W,ZU X P,et al.Integrative metabolic and microbial profiling on patients with Spleen-yang-deficiency syndrome[J].Scientific Reports,2018,8:6619,doi:10.1038/s41598-018-24130-7.
[33] NAVA G M,STAPPENBECK T S.Diversity of the autochthonous colonic microbiota[J].Gut Microbes,2011,2(2):99-104.

[34] ZENG X L,GAO X X,PENG Y,et al.Higher risk of stroke is correlated with increased opportunistic pathogen load and reduced levels of butyrate-producing bacteria in the gut[J].Frontiers in Cellular and Infection Microbiology,2019,9:4,doi:10.3389/fcimb.2019.00004.
[35] LI S Y,WANG Z L,YANG Y,et al.
Lachnospiraceae shift in the microbial community of mice faecal sample effects on water immersion restraint stress[J].AMB Express,2017,7:82,doi:10.1186/s13568-017-0383-4.
[36] MENG Q W,SUN S S,LUO Z,et al.Maternal dietary resveratrol alleviates weaning-associated diarrhea and intestinal inflammation in pig offspring by changing intestinal gene expression and microbiota[J].Food & Function,2019,10(9):5626-5643.

[37] 张雪艳.不同丁酸盐对蛋鸡生产性能、养分代谢率、蛋品质及肠道微生物影响的研究[D].硕士学位论文.郑州:河南农业大学, 2007.
[38] GUO J R,DONG X F,LIU S,et al.High-throughput sequencing reveals the effect of
Bacillus subtilis CGMCC 1.921 on the cecal microbiota and gene expression in ileum mucosa of laying hens[J].Poultry Science,2018,97(7):2543-2556.

[39] ZHAO Y,LI K,LUO H Q,et al.Comparison of the intestinal microbial community in ducks reared differently through high-throughput sequencing[J].BioMed Research International,2019,2019:9015054,doi:10.1155/2019/9015054.
[40] SMITH-BROWN P,MORRISON M,KRAUSE L,et al.Dairy and plant based food intakes are associated with altered faecal microbiota in 2 to 3 year old Australian children[J].Scientific Reports,2016,6:32385,doi:10.1038/srep32385.
[41] SHAO T J,SHAO L,LI H C,et al.Combined signature of the fecal microbiome and metabolome in patients with gout[J].Frontiers in Microbiology,2017,8:268,doi:10.3389/fmicb.2017.00268.
[42] LI D Y,CHEN H Q,MAO B Y,et al.Microbial biogeography and core microbiota of the rat digestive tract[J].Scientific Reports,2017,7:45840,doi:10.1038/srep45840.
[43] JUNG M J,LEE J,SHIN N R,et al.Chronic repression of mTOR complex 2 induces changes in the gut microbiota of diet-induced obese mice[J].Scientific Reports,2016,6:30887,doi:10.1038/srep30887.
[44] LIU C X,FINEGOLD S M,SONG Y L,et al.Reclassification of
Clostridium coccoides,
Ruminococcus hansenii,
Ruminococcus hydrogenotrophicus,
Ruminococcus luti,
Ruminococcus productus and
Ruminococcus schinkii as
Blautia coccoides gen.nov.,comb.nov.,
Blautia hansenii comb.nov.,
Blautia hydrogenotrophica comb.nov.,
Blautia luti comb.nov.,
Blautia producta comb.nov.,
Blautia schinkii comb.nov.and description of
Blautia wexlerae sp.nov.,isolated from human faeces[J].International Journal of Systematic and Evolutionary Microbiology,2008,58,1896-1902.
[45] DUNCAN S H,HOLD G L,HARMSEN H J M,et al.Growth requirements and fermentation products of Fusobacterium prausnitzii,and a proposal to reclassify it as
Faecalibacterium prausnitzii gen.nov.comb.nov[J].International Journal of Systematic and Evolutionary Microbiology,2002,52(6):2141-2146.
[46] BIDDLE A,STEWART L,BLANCHARD J,et al.Untangling the genetic basis of fibrolytic specialization by
Lachnospiraceae and
Ruminococcaceae in diverse gut communities[J].Diversity,2013,5(3):627-640.

[47] YANG J Y,BINDELS L B,MUNOZ R R S,et al.Disparate metabolic responses in mice fed a high-fat diet supplemented with maize-derived non-digestible feruloylated oligo- and polysaccharides are linked to changes in the gut microbiota[J].PLoS One,2016,11(1):e0146144,doi:10.1371/journal.pone.0146144.
[48] ABAIDULLAH M,PENG S W,KAMRAN M,et al.Current findings on gut microbiota mediated immune modulation against viral diseases in chicken[J].Viruses,2019,11(8):681,doi:10.3390/v11080681.
[49] LI B,ZHANG X X,GUO F,et al.Characterization of tetracycline resistant bacterial community in saline activated sludge using batch stress incubation with high-throughput sequencing analysis[J].Water Research,2013,47(13):4207-4216.

[50] CAO G T,DAI B,WANG K L,et al.
Bacillus licheniformis,a potential probiotic,inhibits obesity by modulating colonic microflora in C57BL/6J mice model[J].Journal of Applied Microbiology,2019,127(3):880-888.

[51] WEI S,MORRISON M,YU Z.Bacterial census of poultry intestinal microbiome[J].Poultry Science,2013,92(3):671-683.

[52] HUANG P,ZHANG Y,XIAO K P,et al.The chicken gut metagenome and the modulatory effects of plant-derived benzylisoquinoline alkaloids[J].Microbiome,2018,6:211,doi:10.1186/s40168-018-0590-5.
[53] LI C L,WANG J,ZHANG H J,et al.Intestinal morphologic and microbiota responses to dietary
Bacillus spp.in a broiler chicken model[J].Frontiers in Physiology,2018,9:1968,doi:10.3389/fphys.2018.01968.
[54] BALLOU A L,ALI R A,MENDOZA M A,et al.Development of the chick microbiome:how early exposure influences future microbial diversity[J].Frontiers in Veterinary Science,2016,3:2,doi:10.3389/fvets.2016.00002.