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Pretreatment with probiotics Enterococcus faecium NCIMB 11181 attenuated Salmonella Typhimurium-induced gut injury through modulating intestinal microbiome and immune responses with barrier function in broiler chickens

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Journal of Animal Science and Biotechnology 2023年第2期14卷 666-689页

作者： Yujing Shao Wenrui Zhen Fangshen Guo Zeqiong Hu Kaichen Zhang Linhua Kong Yuming Guo Zhong Wang College of Biology China Agricultural UniversityBeijingChina State Key Laboratory of Animal Nutrition College of Animal Science and TechnologyChina Agricultural UniversityBeijingChina College of Animal Science and Technology Henan University of Science and TechnologyProvince of HenanLuoyangChina Tengzhou Heyi Food Co.Ltd ZaozhuangShandong ProvinceChina.

Background:Preventing Salmonella infection and colonization in young birds is key to improving poultry gut health and reducing Salmonella contamination of poultry products and decreasing salmonellosis for human consumption(poultry meat and eggs).Probiotics can improve poultry *** present study was conducted to investigate the impact of a probiotics,Enterococcus faecium NCIMB 11181(*** NCIMB 11181)on the intestinal mucosal immune responses,microbiome and barrier function in the presence or absence of Salmonella Typhimurium(***-imurium,ST)***:Two hundred and forty 1-day-old Salmonella-free male broiler chickens(Arbor Acres AA+)were randomly allocated to four groups with 6 replicate cages of 10 birds *** four experimental groups were follows:(1)nega-tive control(NC),(2)***,challenged positive control(PC),(3)the *** NCIMB 11181-treated group(EF),(4)the *** NCIMB 11181-treated and ***-challenged group(PEF).Results:Results indicated that,although continuous feeding *** NCIMB 11181 did not obviously alleviate growth depression caused by *** challenge(P>0.05),*** NCIMB 11181 addition significantly blocked Salmonella intestinal colonization and translocation(Pchickens remarkably attenuated gut morphological structure damage and intestinal cell apoptosis induced by *** infection,as evidenced by increasing gut villous height and reducing intes-tinal TUNEL-positive cell numbers(P<0.05).Also,*** NCIMB 11181 administration notably promoting the production of anti-Salmonella antibodies in intestinal mucosa and serum of the infected birds(P<0.05).Addition-ally,16S rRNA sequencing analysis revealed that *** NCIMB 11181 supplementation ameliorated ***-rium infection-induced gut microbial dysbiosis by enriching Lachnospiracease and Alistipes levels,and suppressing Barnesiella *** function

关键词： broiler chickens Enterococcus faecium Gut health Salmonella Typhimurium

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Evaluation of curcumin and copper acetate against Salmonella Typhimurium infection,intestinal permeability,and cecal microbiota composition in broiler chickens

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Journal of Animal Science and Biotechnology 2021年第3期12卷 1019-1030页

作者： Anaisa ALeyva-Diaz Daniel Hernandez-Patlan Bruno Solis-Cruz Bishnu Adhikari Young Min Kwon Juan D.Latorre Xochitl Hernandez-Velasco Benjamin Fuente-Martinez Billy M.Hargis Raquel Lopez-Arellano Guillermo Tellez-Isaias Departamento de Medicina y Zootecnia de Aves Facultad de Medicina Veterinaria y ZootecniaUNAM04510 Ciudad de MexicoMexico Laboratorio 5:LEDEFAR Unidad de Investigacion MultidisciplinariaFacultad de Estudios Superiores(FES)CuautitlanUniversidad Nacional Autonoma de Mexico(UNAM)54714 Cuautitlan IzcalliMexico Department of Poultry Science Center of Excellence for Poultry ScienceUniversity of Arkansas1260 W.MaplePOSC 0-114FayettevilleAR 72704USA Centro de Ensenanza Investigacion y Extension en Produccion AvicolaFacultad de Medicina Veterinaria y ZootecniaUNAMCiudad de MexicoMexico

Background:Interest in the use of natural feed additives as an alternative to antimicrobials in the poultry industry has increased in recent years because of the risk of bacterial *** of the most studied groups are polyphenolic compounds,given their advantages over other types of additives and their easy potentiation of effects when complexes are formed with metal ***,the objective of the present study was to evaluate the impact of dietary supplementation of copper acetate(CA),curcumin(CR),and their combination(CA-CR)against Salmonella Typhimurium colonization,intestinal permeability,and cecal microbiota composition in broiler chickens through a laboratory Salmonella infection *** recovery was determined on day 10 post-challenge by isolating Salmonella in homogenates of the right cecal tonsil(12 chickens per group)on Xylose Lysine Tergitol-4(XLT-4)with novobiocin and nalidixic *** integrity was indirectly determined by the fluorometric measurement of fluorescein isothiocyanate dextran(FITC-d)in serum samples from blood obtained on d 10 *** ***,microbiota analysis was performed using the content of the left caecal tonsil of 5 chickens per group by sequencing V4 region of 16S rRNA ***:The results showed that in two independent studies,all experimental treatments were able to significantly reduce the *** colonization in cecal tonsils(CT,Pchickens treated with CR was significantly lower when compared to PC(P=0.0084),which is related to a decrease in intestinal permeability and therefore intestinal *** effect of dietary treatments in reducing Salmonella was further supported by the analysis of 16S rRNA gene sequences using Li

关键词： broiler chickens Copper acetate Curcumin Intestinal permeability Microbiota composition Salmonella Typhimurium

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In vitro antibacterial activity of thymol and carvacrol and their effects on broiler chickens challenged with Clostridium perfringens

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Journal of Animal Science and Biotechnology 2016年第1期7卷 95-106页

作者： Encun Du Liping Gan Zhui Li Weiwei Wang Dan Liu Yuming Guo State Key Laboratory of Animal Nutrition College of Animal Science and TechnologyChina Agricultural University

Background： In the post-antibiotic era, essential oils （EO） are promising alternatives to growth-promoting antibiotics. The aim of the present study was to investigate the antibacterial activities of an EO product and its components thymol and carvacrol in vitro, and the efficacy of EO to control Clostridium perffingens challenge in broiler chickens. Results： The in vitro minimum inhibitory concentration assay showed strong antibacterial activity of the EO product, thymol, and carvacrol against pathogenic Escherichia col~, C. perffingens, and Salmonella strains, and weak activity towards beneficial Lactobacillus strains. Besides, an additive effect was observed between thymol and carvacrol. The in vivo study was carried out with 448 male broiler chicks following a 4 x 2 factorial arrangement to test the effects of EO supplementation （0, 60, 120, or 240 mg/kg EO in wheat-based diet）, pathogen challenge （with or without oral gavage of C. perfr/ngens from day 14 to day 20） and their interactions. Each treatment consisted of eight replicate pens （seven birds/pen）. The challenge led to macroscopic gut lesions, and resulted in a significant increase in ileal populations of C. perffingens and Eschefichia subgroup （P ≤ 0.05） on day 21. Dietary EO supplementation did not influence C. perfringens numbers, but linearly alleviated intestinal lesions on day 21 and 28 （P= 0.010 and 0.036, respectively）, and decreased Eschefichia populations in ileum with increased EO dosages （P = 0.027 and 0.071 for day 21 and 28, respectively）. For caecum, EO quadratically influenced Lactobacillus populations on day 21 （P = 0.002）, and linearly decreased the numbers of total bacteria and Eschefichio on day 28 （P = 0.026 and 0.060, respectively）. Mean thymol and carvacrol concentrations in the small intestine were 0.21 and 0.20 μg/g in intestinal digesta （wet weight）, respectively, for birds fed 60 mg/kg EO, and 0.80 and 0.71 μg/g, respectively, for birds fed 240 mg/kg EO. Conclusions： These resu

关键词： Thymol Carvacrol Essential oils Clostfidium perfringens Eschefichia coil broiler chickens

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Dietary supplemental coated essential oils and organic acids mixture improves growth performance and gut health along with reduces Salmonella load of broiler chickens infected with Salmonella Enteritidis

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Journal of Animal Science and Biotechnology 2023年第6期14卷 2554-2577页

作者： Zeqiong Hu Lin Liu Fangshen Guo Jia Huang Jianing Qiao Ruichen Bi Jinyu Huang Kaichen Zhang Yuming Guo Zhong Wang State Key Laboratory of Animal Nutrition College of Animal Science and TechnologyChina Agricultural UniversityBeijingChina. Shanghai Meinong Biotechnology Co. Ltd.ShanghaiChina. Shandong Heyi Food Co. Ltd.Zaozhuang CityShandong ProvinceChina.

Background Reducing Salmonella infection in broiler chickens by using effective and safe alternatives to antibiotics is vital to provide safer poultry meat and minimize the emergence of drug-resistant Salmonella and the spread of salmonellosis to *** study was to first evaluate the protective efficacy of feeding coated essential oils and organic acids mixture(EOA)on broiler chickens infected with Salmonella Enteritidis(***,SE),and then its action mechanism was further *** A total of 4801-day-old Arbor Acres male chickens were randomly assigned into five treatments with six replicates,including non-challenged control fed with basal diet(A),SE-challenged control(B),and SE-infected birds fed a basal diet with 300 mg/kg of EOA(BL),500 mg/kg of EOA(BM)and 800 mg/kg of EOA(BH),*** birds on challenged groups were infected with Salmonella Enteritidis on d *** Feeding EOA showed a reversed ability on negative effects caused by SE infection,as evidenced by decreasing the feed conversion rate(FCR)and the ratio of villus height to crypt depth(VH/CD)(Pchickens after challenge,whereas down-regulated toll-like receptor-4(TLR-4)mRNA levels(P<0.05).Linear discriminant analysis combined effect size measurements analysis(LEfSe)showed that the relative abundance of g_Butyricicoccus,g_Anaerotruncus and g_unclassified_f_Bacillaceae significantly was enriched in infected birds given ***,phylogenetic investigation of communities by reconstruct

关键词： broiler chickens Essential oils and organic acids mixture Gut health Salmonella Enteritidis

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Effects of rearing system and antibiotic treatment on immune function,gut microbiota and metabolites of broiler chickens

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Journal of Animal Science and Biotechnology 2023年第2期14卷 827-852页

作者： Bochen Song Peng Li Huiping Xu Zhong Wang Jianmin Yuan Bingkun Zhang Zengpeng Lv Zhigang Song Yuming Guo State Key Laboratory of Animal Nutrition College of Animal Science and TechnologyChina Agricultural UniversityBeijing 100193China Department of Animal Science Shandong Agricultural UniversityTaian 271018China.

Background:In China,cage systems with a high space utilization have gradually replaced ground litter systems,but the disease incidence of chickens in cages is *** in the ground litter pens may be stimulated by more environmental microbes during the growth process and show strong immune function and status,but knowledge of which microbes and their metabolites play an immunomodulatory role is still *** study aimed to explore the differences and correlations in the immune function,gut microbiota and metabolites and the importance of gut microbiota of broilers raised in cages and ground litter ***:The experiment involved a 2×2 factorial arrangement,with rearing systems(cages or ground litter pens)and antibiotic treatment(with or without broad-spectrum antibiotics in drinking water)as ***:The results showed that,compared with the cage group,the ground litter broilers had stronger nonspecific immune function(Macrophages%and NO in blood),humoral immune function(IgG in blood,LPS stimulation index in ileum)and cellular immune function(T%,Tc%,ConA stimulation index and cytokines in blood).Antibiotic(ABX)treat-ment significantly reduced nonspecific immune function(Macrophages%and NO in blood,iNOS and Mucin2 mRNA expression in ileum),humoral immune function(IgG in blood and sIgA in ileum)and cellular immune function(T%and cytokines in blood,Th and Tc ratio,TLRs and cytokines mRNA expression in ileum).Furthermore,the ground litter broil-ers had higherαdiversity of microbiota in *** relative abundance of Staphylococcus,Jeotgalicoccus,Jeotgalibaca and Pediococcus in the ileum of ground litter broilers were *** treatment significantly reduced theαdiversity of ileal microbiota,with less Chloroplast and *** addition,the levels of acetic acid,isobutyric acid,kynurenic acid and allolithocholic acid in the ileum of ground litter broilers were *** correlation analysis showed that Jeotgalibaca,Pediococcus,aceti

关键词： Broad-spectrum antibiotics broiler chickens Gut microbiota Immune function Metabolites Rearing system

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The influence of dietary crude protein concentrations,grain types and arginine:lysine ratios on the performance of broiler chickens

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Animal Nutrition 2023年第3期14卷 259-268页

作者： Shemil P.Macelline Peter V.Chrystal Chanon Inanan Mehdi Toghyani Peter H.Selle Sonia Yun Liu School of Life and Environmental Sciences Faculty of ScienceThe University of SydneyCamperdown2006NSWAustralia Poultry Research Foundation within The University of Sydne Camden2570NSWAustralia Complete Feed Solutions Howick2145New Zealand Sydney School of Veterinary Science Faculty of ScienceThe University of SydneyCamden2570NSWAustralia

The objective of this study was to investigate the effects of dietary crude protein(CP)concentrations,grain types and arginine:lysine ratios on performance parameters of broiler *** 2×2×2factorial array of dietary treatments harnessed two CP concentrations(210 and 170 g/kg),two feed grains(wheat and sorghum),and two arginine:lysine ratios(104 and 110).Each dietary treatment was offered to 7 replicates of 14 birds per floor pen,a total of 784 off-sex male,Ross 308 broilers,from 14 to 35 d *** dietary CP reduction compromised weight gain by 10.0%(2078 versus 2310 g/bird)as a main effect and FCR by 7.51%(1.474 versus 1.371),subject to an *** a three-way interaction(P=0.008),expanded arginine:lysine ratios improved FCR by 2.30%in 170 g/kg CP,sorghum-based diets but compromised FCR by 2.12%in corresponding wheat-based *** was the more suitable feed grain in reduced-CP diets as sorghum generated significant advantages in weight gain of 7.59%(2154versus 2002 g/kg)and FCR of 6.94%(1.421 versus 1.527)in birds offered 170 g/kg CP *** dietary CP and feed grain generated significant and divergent impacts in apparent ileal digestibility coefficients for the majority of 16 assessed amino *** CP reductions increased non-bound amino acid inclusions(NBAA)in wheat-based diets(48.96 versus 9.80 g/kg)to a greater extent than sorghum-based diets(35.3 versus 9.50 g/kg)and increasing dietary NBAA inclusions were linearly associated with compromised weight gain(r=-0.834;P<0.001)and FCR(r=0.862;P<0.001).Increasing ratios of free arginine to lysine plasma concentrations were linearly(r=-0.466;P=0.004)related to improvements in *** implications of the observed outcomes are discussed and possible explanations are advanced.

关键词： Amino acid broiler chickens Energy Protein Sorghum Wheat

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Dietary encapsulated essential oils and organic acids mixture improves gut health in broiler chickens challenged with necrotic enteritis

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Journal of Animal Science and Biotechnology 2020年第3期11卷 866-883页

作者： Van Hieu Pham Liugang Kan Jinyu Huang Yanqiang Geng Wenrui Zhen Yuming Guo Waseem Abbas Zhong Wang State Key Laboratory of Animal Nutrition College of Animal Science and TechnologyChina Agricultural UniversityBeijing 100193China Faculty of Animal Science and Veterinary Medicine Thai Nguyen University Agriculture and ForestryThai NguyenVietnam Menon Animal Nutrition Technology Co.Ltd. ShanghaiChina

Background:The poultry industry is in need of effective antibiotic alternatives to control outbreaks of necrotic enteritis(NE)due to Clostridium *** the present study,we investigated the effects of dietary supplementation with a blend of encapsulated essential oils and organic acids(BLJ)on growth performance and gut health using a coinfection model of NE in broiler ***:Two hundred and eighty-eight one-day-old male Arbor Acres broiler chicks were randomly assigned using a 2×2 factorial design into two groups fed either 0 or 500 mg/kg dietary BLJ and co-challenged(or not challenged for the control)with Eimeria spp./***:Infected birds fed the BLJ-supplemented diet exhibited an improved feed conversion ratio throughout the trial(Pbroiler chickens by strengthening the intestinal barrier function,positively modulating the gut microbiota community

关键词： broiler chickens Clostridium perfringens Essential oils and organic acids Gut health

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Black soldier fly defatted meal as a dietary protein source for broiler chickens:Effects on growth performance,blood traits,gut morphology and histological features

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Journal of Animal Science and Biotechnology 2018年第4期9卷 891-900页

作者： Sihem Dabbou Francesco Gai Ilaria Biasato Maria Teresa Capucchio Elena Biasibetti Daniela Dezzutto Marco Meneguz Iveta Plachà Laura Gasco Achille Schiavone Department of Veterinary Science University of TurinLargo Paolo Braccini 210095 GrugliascoItaly Institute of Science of Food Production National Research CouncilLargo Paolo Braccini 210095 GrugliascoItaly Veterinary Medical Research Institute for Piemonte Liguria and Valle d’AostaVia Bologna 14810154 TurinItaly Department of Agricultural Forest and Food SciencesUniversity of TurinLargo Paolo Braccini 210095 GrugliascoItaly Institute of Animal Physiology Centre of BioscienceSlovak Academy of SciencesSoltesovej 4-6040 01 KosiceSlovak Republic Institute of Interdisciplinary Research on Sustainability University of TurinVia Accademia Albertina 1310100 TurinItaly

Background: The present study has evaluated the effects of different inclusion levels of a partially defatted black soldier fly(Hermetia illucens L.; HI) larva meal on the growth performance, blood parameters and gut morphology of broiler chickens. A total of 256 male broiler chickens(Ross 308) were reared from d 1 to d 35 and assigned to4 dietary treatments(8 replicates/treatment and 8 birds/replicate). HI larva meal was included at increasing levels(0, 5%, 10% and 15%; HI0, HI5, HI10 and HI15, respectively) in isonitrogenous and isoenergetic diets formulated for 3 feeding phases: starter(1–10 d), growing(10–24 d) and finisher(24–35 d). Two birds per pen were slaughtered at d 35 and morphometric investigations and histopathological alterations were ***: The live weight(LW) showed linear and quadratic responses to increasing HI larva meal(maximum for HI10 group). Average daily gain(ADG) showed a linear and quadratic responses to HI meal(maximum for HI10 group) during starter and growing periods. A linear decrease was observed for ADG during the finisher period. The daily feed intake(DFI) showed a linear and quadratic effect during the starter period(maximum for HI10 group).Linear and quadratic responses were observed for the feed conversion ratio(FCR) in the growing period and for the whole period of the experiment. The FCR showed a linear response in the finisher period(maximum for HI15).No significant effects were observed for the blood and serum parameters, except for the phosphorus concentration,which showed linear and quadratic responses as well as glutathione peroxidase(GPx) activity, the latter of which showed a linear response. The HI15 birds showed a lower villus height, a higher crypt depth and a lower villus height-to-crypt depth ratio than the other ***: Increasing levels of dietary HI meal inclusion in male broiler chickens may improve the LW and DFI during the starter period, but may also negatively affect the FCR and gut m

关键词： broiler chickens Defatted insect meal Gut morphology Hermetia illucens Performance

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Growth performance,nutrient digestibility,intestinal morphology,cecal mucosal cytokines and serum antioxidant responses of broiler chickens to dietary enzymatically treated yeast and coccidia challenge

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Journal of Animal Science and Biotechnology 2023年第4期14卷 1438-1450页

作者： Emmanuel Oluwabukunmi Alagbe Hagen Schulze Olayiwola Adeola Department of Animal Sciences Purdue UniversityWest LafayetteIN 47907USA Livalta PeterboroughCambridgeshire PE26FLUK

Background There is a growing search for natural feed additives to alleviate the deleterious effects of coccidia infection in poultry *** study aimed to investigate the effect of enzymatically treated yeast(ETY) on the growth performance,nutrient digestibility,intestinal morphology,antioxidative status,and cecal mucosa cytokines of coccidia-challenged broiler *** From d 1 to 14 post hatching,480 broiler chickens were allocated to 3 corn-soybean meal-based experimental diets with increasing concentrations of ETY(0,1,or 2 g/kg).The experiment was designed as a randomized complete block design with body weight(BW) used as a blocking *** d 14 post hatching,the birds were re-randomized within each of the 3 experimental *** of the 3 diet groups was split into a challenge or no-challenge *** resulted in a 3 × 2 factorial arrangement of *** coccidia challenge was administered on d 15 by an oral *** Dietary ETY improved(P broiler chickens and reduced(P broiler chickens on d *** ETY linearly increased(P broiler *** ileal and excreta oocyst counts decreased(P broiler chickens on d *** Dietary ETY enha

关键词： broiler chickens Coccidia Goblet cells Growth performance Health Oocyst Peptides Postbiotics Yeast

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Molecular mechanisms of growth depression in broiler chickens(Gallus Gallus domesticus)mediated by immune stress:a hepatic proteome study

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Journal of Animal Science and Biotechnology 2021年第4期12卷 1498-1516页

作者： Aijuan Zheng Anrong Zhang Zhimin Chen Shoaib Ahmed Pirzado Wenhuan Chang Huiyi Cai Wayne L.Bryden Guohua Liu Key Laboratory of Feed Biotechnology of Ministry of Agriculture and Rural Affairs Institute of Feed ResearchChinese Academy of Agricultural SciencesNo.12 Zhongguancun south streetHaidian districtBeijing 100081China School of Agriculture and Food Sciences University of QueenslandGattonQLD 4343Australia

Background:Immunological stress decreases feed intake,suppresses growth and induces economic ***,the underlying molecular mechanism remains ***-free liquid chromatography and mass spectrometry(LC-MS)proteomics techniques were employed to investigate effects of immune stress on the hepatic proteome changes of Arbor Acres broilers(Gallus Gallus domesticus)challenged with Escherichia coli lipopolysaccharide(LPS).Results:Proteomic analysis indicated that 111 proteins were differentially expressed in the liver of broiler chickens from the immune stress *** these,28 proteins were down-regulated,and 83 proteins were up-regulated in the immune stress *** analysis showed that immune stress upregulated the expression of hepatic proteins involved in defense function,amino acid catabolism,ion transport,wound healing,and hormone ***,immune stress increased valine,leucine and isoleucine degradation ***:The data suggests that growth depression of broiler chickens induced by immune stress is triggered by hepatic proteome alterations,and provides a new insight into the mechanism by which immune challenge impairs poultry production.

关键词： broiler chickens Hepatic proteome Immune stress Lipopolysaccharide

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