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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(P<0.05).Moreover,supplemental *** NCIMB 11181 to the infected chickens 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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Dietary coated essential oil and organic acid mixture supplementation improves health of broilers infected with avian pathogenic Escherichia coli

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Animal Nutrition 2023年第1期12卷 245-262页

作者： Van Hieu Pham Waseem Abbas Jinyu Huang fangshen guo Kaichen Zhang Linhua Kong Wenrui Zhen Yuming guo Zhong Wang State Key Laboratory of Animal Nutrition College of Animal Science and TechnologyChina Agricultural UniversityBeijing100193China Faculty of Animal Science and Veterinary Medicine Thai Nguyen University Agriculture and ForestryThai NguyenViet Nam Menon Animal Nutrition Technology Co.Ltd. Shanghai201807China Tengzhou Heyi Food Co.Ltd. Zaozhuang277000China

Colibacillosis caused by avian pathogenic Escherichia coli(APEC)is a very prevalent disease in poultry farms in *** exploration of effective non-antibiotic substances is of great significance for the control of APEC *** experiment evaluated the efficacy of coated essential oil and organic acid(EOA)supplementation to prevent *** O78 infection in broiler chickens.A total of 288 one-day-old male broiler chicks were randomly distributed into 4 groups with 6 replicates per *** were fed a diet either supplemented with EOA(500 mg/kg feed)or not,and either uninfected or infected with *** O78 *** showed that *** O78 infection reduced body weight gain,increased mortality and the ratio of feed to gain along with cecal and liver *** load,damaged gut mucosa,induced local and systemic inflammation,and altered cecal microbial composition,diversity and function(P<0.05).Supplemental EOA improved feed conversion efficiency,lowered gross lesion scores and cecal *** population,enhanced intestinal goblet cells and serum IgG concentration,and tended to decrease serum IL-12 production(P<0.05).Essential oil and organic acid addition downregulated IFN-γmRNA,tended to decrease mucin-2 mRNA levels while upregulating IL-10 mRNA,and tended to increase ZO-1 gene expression in the jejuna of infected birds at 7 d after *** O78 challenge(P<0.05).The 16S rRNA gene sequencing indicated that both EOA addition and *** O78 challenge altered the diversity and composition of the cecal microbiota ***,infected birds fed EOA showed decreased Bacteroidetes and genus Lactobacillus abundance compared with the infected *** analysis showed that Firmicutes,Ruminococcaceae,Clostridiales,Clostridia,Lactobacillus,Lactobacilaceae,and cc-115 were enriched in the non-infected but EOA-treated group(P<0.05).Collectively,dietary EOA supplementation could mildly alleviate ***-induced gut injury and inflammation.

关键词： Encapsulated essential oil and organic acid mixture Avian pathogenic Escherichia coli Health Broiler chicken

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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)(P<0.05),obviously decreasing intestinal and internal organs Salmonella load along with increasing cecal butyric acid-producing bacteria abundance(P<0.05).Moreover,supplemental different levels of EOA notably up-regulated claudin-1(CLDN-1),occludin(OCLN),zonula occludens-1(ZO-1),mucin-2(MUC-2),fatty acid binding protein-2(FABP-2),nuclear factor kappa-light-chainenhancer of activated B cells(NF-κB),myeloid differential protein-88(MyD88)and interleukin-6(IL-6)mRNA levels in the ileum of the infected chickens 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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Intestinal toxicity of deoxynivalenol is limited by supplementation with Lactobacillus plantarum JM113 and consequentially altered gut microbiota in broiler chickens

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Journal of Animal Science and Biotechnology 2019年第1期10卷 218-230页

作者： Shengru Wu Yanli Liu Yongle Duan Fangyuan Wang fangshen guo Fang Yan Xiaojun Yang Xin Yang College of Animal Science and Technology Northwest A&F University College of animal science and Technology Hebei Agricultural University

Background: Limited research has focused on the effect of Lactobacillus on the intestinal toxicity of deoxynivalenol(DON).The present study was conducted to investigate the role of Lactobacillus plantarum(***) JM113 in protecting against the intestinal toxicity caused by ***: A total of 144 one-day-old healthy Arbor Acres broilers were randomly distributed into 3 treatments,including the CON(basal diet),the DON(extra 10 mg/kg deoxynivalenol),and the DL(extra 1 × 109 CFU/kg *** JM113 based on DON group) *** growth performance,organ indexes,intestinal morphology,pancreatic digestive enzymes,intestinal secreted immunoglobulin A(sIgA),jejunal transcriptome,and intestinal microbiota were ***: Compared with the CON and DL groups,the DON supplementation altered intestinal morphology,especially in duodenum and jejunum,where villi were shorter and crypts were deeper(P < 0.05).Meanwhile,the significantly decreased mRNA expression of jejunal claudin-1 and occludin(P < 0.05),ileal rBAT and jejunal GLUT1 of 21-day-old broilers(P < 0.05),as well as duodenal PepT1 and ileal rBAT of 42-day-old broilers were identified in the DON ***,supplementation with *** JM113 could increase duodenal expression of IL-10 and IL-12 of 21-dayold broilers,ileal s IgA of 42-day-old broilers,and the bursa of Fabricius index of 21-day-old *** jejunal transcriptome proved that the genes related to the intestinal absorption and metabolism were significantly reduced in the DON group but a significant increase when supplemented with extra *** ***,the bacteria related to nutrient utilization,including the Proteobacteria,Escherichia,Cc-115(P < 0.05),Lactobacillus and Prevotella(P < 0.1) were all decreased in the DON *** contrast,supplementation with *** JM113 increased the relative abundance of beneficial bacterium,including the Bacteroidetes,Roseburia,Anaerofustis,Anaerostipe,and Ruminococcus

关键词： Broiler chickens Deoxynivalenol Gut microbiota Lactobacillus plantarum JM113 mRNA sequencing 16S rRNA gene sequencing

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植物多酚在家禽领域应用研究进展

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畜牧兽医学报 2023年第11期54卷 4488-4501页

作者：毕睿晨刘相泽胡泽琼杨美雪乔嘉宁黄嘉郭芳申孔令华王忠中国农业大学动物科技学院动物营养学国家重点实验室北京100193 滕州合易食品有限公司枣庄277500

植物多酚是植物的次级代谢产物,植物来源的多酚按结构常分为黄酮类、非黄酮类和单宁。随着饲用抗生素在全世界畜禽养殖领域的禁用,植物来源的多酚因其明显的抑菌、抗炎、抗病毒、抗应激、抗氧化等活性引起畜牧生产领域广泛兴趣和关注。... 详细信息

植物多酚是植物的次级代谢产物,植物来源的多酚按结构常分为黄酮类、非黄酮类和单宁。随着饲用抗生素在全世界畜禽养殖领域的禁用,植物来源的多酚因其明显的抑菌、抗炎、抗病毒、抗应激、抗氧化等活性引起畜牧生产领域广泛兴趣和关注。本文系统地综述了植物多酚在家禽领域的应用研究进展,为植物多酚在家禽领域的科学应用提供理论参考。

关键词：多酚家禽研究进展

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维普期刊数据库博看期刊

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土壤中POPs检测方法参数的优化

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中国农学通报 2008年第7期24卷 430-435页

作者：凌建刚王方盛朱优峰陈国康孟利陈海燕吕燕俞静芬钱天寿王美英赵健朱勇宁波市农科院农产品加工研究所浙江宁波315040 宁波市农业局科教处浙江宁波315012 浙江大学环境工程系浙江杭州310029 华中农业大学湖北武汉430070 宁波市农产品质量检测中心浙江宁波315040 浙江宁海县农产品监测中心浙江宁海315600

研究了环境土壤中部分毒害性有机污染物的多残留监测确证技术,采用符合实际的采样方案,应用超声提取、固相萃取前处理及净化手段,充分发挥气相色谱(GC)双柱双检测器和气相色谱-质谱联用(GC-MS)选择离子监测(SIM)优势互补技术,建立了环... 详细信息

研究了环境土壤中部分毒害性有机污染物的多残留监测确证技术,采用符合实际的采样方案,应用超声提取、固相萃取前处理及净化手段,充分发挥气相色谱(GC)双柱双检测器和气相色谱-质谱联用(GC-MS)选择离子监测(SIM)优势互补技术,建立了环境土壤中艾氏剂等10种持久性有机污染物多残留检测确证方法。充分挖掘GC和MS的互补优化技术,通过标准添加和对实际样品的监测,证明方法具有前处理简洁、速度快、定量检测和定性确证结合、适合批量等优点。

关键词：环境有机污染物监测气相色谱-质谱联用

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二氧化碳气井垂直管流压力温度分布计算

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特种油气藏 2009年第4期16卷 94-96,100页

作者：陈仙江郭强赵海燕李倩提高油气采收率教育部重点实验室大庆石油学院黑龙江大庆163318 中油塔里木油田公司新疆库尔勒841000 中油大庆油田有限责任公司黑龙江大庆163318

根据垂直管流的能量平衡方程,综合考虑压力、温度的相互影响,同时将流体偏差系数考虑为压力和温度的函数,建立了二氧化碳气井井筒压力分布计算模型。计算时将井筒分成等高度的若干段,在每段中进行迭代求解。以松辽盆地北部徐家围子芳深... 详细信息

根据垂直管流的能量平衡方程,综合考虑压力、温度的相互影响,同时将流体偏差系数考虑为压力和温度的函数,建立了二氧化碳气井井筒压力分布计算模型。计算时将井筒分成等高度的若干段,在每段中进行迭代求解。以松辽盆地北部徐家围子芳深9井区芳深9井实测数据为例加以验证,此计算模型具有较高的精度。对于深度低于3 500 m的二氧化碳气井,计算结果与实测数据的偏差很小。将此计算模型用于二氧化碳气井垂直管流压力温度分布计算,能够满足工程要求。

关键词：二氧化碳气井压力分布温度分布垂直管流

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多信息储层预测地震属性提取与有效性分析方法

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石油物探 2002年第1期41卷 100-106页

作者：刘文岭牛彦良李刚郭彦如中国地质大学北京100083 大庆油田有限责任公司勘探开发研究院黑龙江大庆163712

针对多信息储层预测 ,介绍了QuincyChen等人基于储层特征的地震属性分类 ,讨论了地震时窗的选取和属性预处理方法 ,提出了地震属性有效性分析基本准则和工作程序 ,并对优选地震属性的主要算法进行了介绍 ,结合大庆宋芳屯油田芳深 2区块... 详细信息

针对多信息储层预测 ,介绍了QuincyChen等人基于储层特征的地震属性分类 ,讨论了地震时窗的选取和属性预处理方法 ,提出了地震属性有效性分析基本准则和工作程序 ,并对优选地震属性的主要算法进行了介绍 ,结合大庆宋芳屯油田芳深 2区块储层预测给出了一个应用实例。指出精细的地震属性提取与有效性分析是高精度地震储层预测的前提。

关键词：油气勘探多信息储层预测地震属性提取有效性分析方法优选

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