检索结果-南通市图书馆

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

在线全文

学校读者我要写书评

暂无评论

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(Pgut lesion scores and serum fluorescein isothiocyanate dextran(FITC-D)concentrations at 7 d postinfection compared with those of birds without BLJ supplementation(Pgut health in NE-infected broiler 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

Prevotella-rich enterotype may benefit gut health in finishing pigs fed diet with a high amylose-to-amylopectin ratio

在线全文

学校读者我要写书评

暂无评论

Animal Nutrition 2021年第2期7卷 400-411页

作者： Wen Ren Honglin Yan Bing Yu Maria C.Walsh Jie Yu Ping Zheng Zhiqing Huang Junqiu Luo Xiangbing Mao Jun He Hui Yan Daiwen Chen Yuheng Luo Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education of China Key Laboratory for Animal Disease-Resistance Nutrition and Feed of Ministry of Agriculture of ChinaKey Laboratory of Animal Disease-resistant Nutrition of Sichuan ProvinceAnd Animal Nutrition InstituteSichuan Agricultural UniversityChengdu 611130China DSM(China)Animal Nutrition Research Center Co. LtdBazhou 065799China School of Life Science and Engineering Southwest University of Science and TechnologyMianyangSichuan 621010China DSM Nutritional Products Kaiseraugst 4303Switzerland

To investigate the influence of baseline enterotypes and dietary starch type on the concentration of short-chain fatty acids(SCFA),numbers of butyrate producing bacteria and the expression of genes related to intestinal barrier and inflammatory response in the colon of finishing pigs,a 60-d in vivo trial was conducted.A 2-wk pre-trial with 102 crossbred(Duroc×[Landrace×Yorkshire])finishing barrows(90 d old)was conducted to screen ***,a total of 32 pigs(87.40±2.76 kg)with high(HPBR,>14)and low(LPBR,<2)Prevotella-to-Bacteroides ratios(PBR)in equal measure were selected and randomly divided into 4 groups with 8 replicates per group and 1 pig per *** trial was designed following a 2(PBR)×2(amylose-to-amylopectin ratio,AMR)factorial *** with different PBR were fed diets based on corn-soybean meal with high AMR(HAMR,1.24)or low AMR(LAMR,0.23),*** showed that neither PBR nor AMR influenced the growth performance of *** pigs fed HAMR diet had a higher number of colonic Clostridium cluster XIVa and higher gene expression of butyrate kinase compared to the LPBR pigs(P<0.05).The HPBR pigs fed HAMR diets also had increased colonic concentrations of total SCFA and propionate compared to the LPBR pigs(P<0.05).Comparing with other pigs,HPBR pigs fed HAMR diets showed a lower(P<0.05)expression of histone deacetylases(HDAC)gene and higher(P<0.05)expression of G protein-coupled receptor 43 gene(GPR 43)in the colonic *** interaction(P<0.05)of HPBR and HAMR was also found to decrease the gene expression of interleukin(IL)-6,IL-12,IL-1βand tumor necrosis factor-α(TNF-α)in colonic *** findings show that HAMR diet increased the abundance and activity of butyrate-producing bacteria and the concentration and absorption of SCFA,which may be associated with the decreased gene expression of inflammatory cytokines in the colonic mucosa of pigs with Prevotella-rich *** these alterations are likely to have a pos

关键词： Enterotype Amylose-to-amylopectin ratio gut health Finishing pig

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

在线全文

学校读者我要写书评

暂无评论

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

Resistant starch: Implications of dietary inclusion on gut health and growth in pigs:a review

在线全文

学校读者我要写书评

暂无评论

Journal of Animal Science and Biotechnology 2022年第3期13卷 613-627页

作者： Felina P.Y.Tan Eduardo Beltranena Ruurd T.Zijlstra Department of Agricultural Food and Nutritional ScienceUniversity of AlbertaEdmontonAB T6G 2P5Canada

Starch from cereal grains,pulse grains,and tubers is a major energy substrate in swine rations constituting up to 55%of the *** pigs,starch digestion is initiated by salivary and then pancreaticα-amylase,and has as final step the digestion of disaccharides by the brush-border enzymes in the small intestine that produce monosaccharides(glucose)for *** starch(RS)is the proportion of starch that escapes the enzymatic digestion and absorption in the small *** undigested starch reaches the distal small intestine and hindgut for microbial fermentation,which produces short-chain fatty acids(SCFA)for *** in turn,influence microbial ecology and gut health of *** fermentative metabolites exert their benefits on gut health through promoting growth and proliferation of enterocytes,maintenance of intestinal integrity and thus immunity,and modulation of the microbial community in part by suppressing the growth of pathogenic bacteria while selectively enhancing beneficial ***,RS has the potential to confer prebiotic effects and may contribute to the improvement of intestinal health in pigs during the post-weaning *** these benefits to the well-being of pigs,RS has a contradictory effect due to lower energetic efficiency of fermented *** starch absorption *** varying amount and type of RS interact differently with the digestion process along the gastrointestinal tract affecting its energy efficiency and host physiological responses including feed intake,energy metabolism,and feed *** of research indicate that the use of RS as prebiotic may improve gut health and thereby,reduce the incidence of post-weaning diarrhea(PWD)and associated *** review summarizes our current knowledge on the effects of RS on microbial ecology,gut health and growth performance in pigs.

关键词： Growth performance gut health Resistant starch Swine

Black soldier fly and gut health in broiler chickens:insights into the relationship between cecal microbiota and intestinal mucin composition

在线全文

学校读者我要写书评

暂无评论

Journal of Animal Science and Biotechnology 2020年第3期11卷 841-852页

作者： Ilaria Biasato Ilario Ferrocino Sihem Dabbou Rocchina Evangelista Francesco Gai Laura Gasco Luca Cocolin Maria Teresa Capucchio Achille Schiavone Department of Agricultural Forest and Food SciencesUniversity of TurinLargo Paolo Braccini 210095 GrugliascoTOItaly Department of Veterinary Sciences University of TurinLargo Paolo Braccini 210095 GrugliascoTOItaly Institute of Science of Food Production National Research CouncilLargo Paolo Braccini 210095 GrugliascoTOItaly

Background:The relationship between diet and intestinal microbiota and mucin composition appears to be fundamental for poultry gut *** effects of insect meal(whose role as alternative feed ingredient is now well recognized)on gut microbiota and mucin composition have recently been reported in Tenebrio molitor-fed free-range and broiler chickens,but no data are currently available for Hermetia illucens(HI)-fed *** present study evaluated the effects of dietary HI meal inclusion on cecal microbiota and intestinal mucin composition of broiler ***:A total of 256 male broiler chickens were allotted to 4 dietary treatments(control diet[C]and 5%,10%and 15%HI meal inclusion,with 8 replicate pens/treatment and 8 birds/pen)and slaughtered at 35 d of age(2 animals/pen,16 birds/diet).The cecal microbiota assessment by 16S rRNA amplicon based sequencing showed lower alpha diversity in HI15 chickens(Shannon,Pgut mucin dynamics in terms of selection of potentially beneficial bacteria and increase in villi ***,high inclusion levels(in

关键词： 16S rRNA gut health Hermetia illucens L. Histochemistry Insect meal Microbiota Mucin Poultry

Medium-chain fatty acids and monoglycerides as feed additives for pig production:towards gut health improvement and feed pathogen mitigation

在线全文

学校读者我要写书评

暂无评论

Journal of Animal Science and Biotechnology 2020年第3期11卷 611-625页

作者： Joshua A.Jackman RDean Boyd Charles C.Elrod School of Chemical Engineering Sungkyunkwan UniversitySuwon 16419Republic of Korea Hanor Company FranklinKY 42134USA North Carolina State University RaleighNC 27695USA Natural Biologics Inc. NewfieldNY 14867USA Department of Animal Science Cornell UniversityIthacaNY 14853USA.

Ongoing challenges in the swine industry,such as reduced access to antibiotics and virus outbreaks(e.g.,porcine epidemic diarrhea virus,African swine fever virus),have prompted calls for innovative feed additives to support pig ***-chain fatty acids(MCFAs)and monoglycerides have emerged as a potential option due to key molecular features and versatile functions,including inhibitory activity against viral and bacterial *** this review,we summarize recent studies examining the potential of MCFAs and monoglycerides as feed additives to improve pig gut health and to mitigate feed *** molecular properties and biological functions of MCFAs and monoglycerides are first introduced along with an overview of intervention needs at different stages of pig *** latest progress in testing MCFAs and monoglycerides as feed additives in pig diets is then presented,and their effects on a wide range of production issues,such as growth performance,pathogenic infections,and gut health,are *** utilization of MCFAs and monoglycerides together with other feed additives such as organic acids and probiotics is also described,along with advances in molecular encapsulation and delivery ***,we discuss how MCFAs and monoglycerides demonstrate potential for feed pathogen mitigation to curb disease *** forward,we envision that MCFAs and monoglycerides may become an important class of feed additives in pig production for gut health improvement and feed pathogen mitigation.

关键词： Antibiotics Feed pathogen mitigation Growth promotion gut health Immune enhancement MCFA Medium-chain fatty acids Monoglycerides

Implications of butyrate and its derivatives for gut health and animal production

在线全文

学校读者我要写书评

暂无评论

Animal Nutrition 2018年第2期4卷 151-159页

作者： ANDrea Bedford Joshua Gong Guelph Research and Development Centre Agriculture and Agri-food Canada

Butyrate is produced by microbial fermentation in the large intestine of humans and *** serves as not only a primary nutrient that provides energy to colonocytes, but also a cellular mediator regulating multiple functions of gut cells and beyond, including gene expression, cell differentiation, gut tissue development, immune modulation, oxidative stress reduction, and diarrhea *** there are a large number of studies in human medicine using butyrate to treat intestinal disease, the importance of butyrate in maintaining gut health has also attracted significant research attention to its application for animal production, particularly as an alternative to in-feed *** to the difficulties of using butyrate in practice(i.e., offensive odor and absorption in the upper gut), different forms of butyrate,such as sodium butyrate and butyrate glycerides, have been developed and examined for their effects on gut health and growth performance across different *** and its derivatives generally demonstrate positive effects on animal production, including enhancement of gut development, control of enteric pathogens, reduction of inflammation, improvement of growth performance(including carcass composition), and modulation of gut *** benefits are more evident in young animals, and variations in the results have been *** present article has critically reviewed recent findings in animal research on butyrate and its derivatives in regard to their effects and mechanisms behind and discussed the implications of these findings for improving animal gut health and *** addition, significant findings of medical research in humans that are relevant to animal production have been cited.

关键词： Butyrate Butyrins Antibiotic alternatives gut health Nutrition Animal production

Weaning stress and gastrointestinal barrier development:Implications for lifelong gut health in pigs

在线全文

学校读者我要写书评

暂无评论

Animal Nutrition 2017年第4期3卷 313-321页

作者： Adam J.Moeser Calvin S.Pohl Mrigendra Rajput Gastrointestinal Stress Biology Laboratory Department of Large Animal Clinical SciencesCollege of Veterinary MedicineMichigan State University Neuroscience Program Michigan State University Department of Physiology Michigan State University

The gastrointestinal(GI) barrier serves a critical role in survival and overall health of animals and humans. Several layers of barrier defense mechanisms are provided by the epithelial, immune and enteric nervous systems. Together they act in concert to control normal gut functions(e.g., digestion,absorption, secretion, immunity, etc.) whereas at the same time provide a barrier from the hostile conditions in the luminal environment. Breakdown of these critical GI functions is a central pathophysiological mechanism in the most serious GI disorders in pigs. This review will focus on the development and functional properties of the GI barrier in pigs and how common early life production stressors, such as weaning, can alter immediate and long-term barrier function and disease *** stress-related pathophysiological mechanisms responsible for driving GI barrier dysfunction induced by weaning and the implications to animal health and performance will be discussed.

关键词： Intestinal barrier Pigs Stress Weaning gut health Mast cells

Impacts of energy feeds and supplemental protease on growth performance, nutrient digestibility, and gut health of pigs from 18 to 45 kg body weight

在线全文

学校读者我要写书评

暂无评论

Animal Nutrition 2017年第4期3卷 359-365页

作者： Hongyu Chen Shihai Zhang Inkyung Park Sung Woo Kim Department of Animal Science North Carolina State University

A total of 144 pigs with 18.4 ± 2.3 kg initial body weight(BW) at 6 wk of age were used in a 40-d trial to evaluate effects of protease(300,000 U/kg feed, BioResource International Inc., Durham, NC, USA) on growth performance, apparent ileal digestibility(AID) of nutrients, and gut health of pigs fed diets with sorghum. Pigs were randomly allotted to 4 treatments(12 pens per treatment, 3 pigs per pen) in a 2 x 2 factorial arrangement(corn or sorghum basal diets, and 0 or 0.05% protease as 2 factors) with sex and initial BW as blocks. Experimental period had phase 1(d 1 to 21) and phase 2(d 22 to 40). About 65%(phase 1) and 72%(phase 2) of cereal grains were used in corn or sorghum based diets. Both grains were ground to 400 μm. Body weight and feed intake were recorded weekly. On d 35, serum was collected to quantify tumor necrosis factor-a(TNF-a) and malondialdehyde(MDA). Titanium dioxide(0.3%) was added as an indigestible marker for an additional 4 d feeding. On d 40, 32 pigs(8 pigs per treatment)were euthanized to collect digesta from jejunum and ileum(for viscosity and AID), tissues(for morphology) and mucosa samples(for TNF-α and MDA) from duodenum, jejunum, and ileum. Replacing corn with sorghum in the diet increased(P < 0.05) overall average daily gain(from 756 to 787 g/day) and average daily feed intake(from 1,374 to 1,473 g/day), reduced(P < 0.05) overall gain:feed ratio(from0.553 to 0.537), and did not affect AID. Pigs fed diets with sorghum had lower(P < 0.05) MDA content in serum(from 14.61 to 6.48 μmol/L) and jejunum(from 1.42 to 0.91 μmol/g protein), and reduced(P < 0.05) villus height(from 492 to 396 μm) and crypt depth(from 310 to 257 μm) in jejunum. Dietary protease improved(P < 0.05) AID of crude protein(from 81.8% to 86.0%), decreased MDA level(from 1.20 to 0.98 μmol/g protein) in duodenum, and increased(P < 0.05) the ratio of villus height to crypt depth(from 1.08 to 1.21) in duodenum. Overall, use of sorghum fully replacing corn in diets could b

关键词： Growth performance gut health Pigs Protease Sorghum