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Effects of different ratios of soluble to insoluble dietary fiber on growth performance and intestinal health of piglets

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Animal Nutrition 2024年第3期18卷 257-271页

作者： Luya Feng Zhenfu Luo Jing Wang Kunfu Wu Wenliang Wang Zhimou Liu Juping Wen Zhenbin Wang Gregory JDuns Xiaokang Ma Bi'e Tan hunan provincial key laboratory for the products quality regulation of livestock and poultry College of Animal Science and TechnologyHunan Agricultural UniversityChangsha 410128China Yuelushan laboratory Changsha 410128China hunan Nuoze Biological Technology Co. Ltd.Yiyang 413001China

This study investigated the impact of different ratios of soluble to insoluble dietary fiber(SDF:IDF)formulations by sugar beet pulp(SBP)supplementation on piglet growth performance,nutrient digestibility,immune function,intestinal morphology,intestinal microbiota and intestinal health.A total of 60 crossbred piglets(Duroc×[Landrace×Yorkshire])at 40 d old with body weight of 10.0±0.3 kg were randomly assigned to 5 treatments with 6 replicates per treatment and 2 piglets per replicate in a 21-d *** dietary treatments included a corn-soybean meal diet(0%SBP supplementation;CON),and diets supplemented with 2%,4%,6%,and 8%SBP,representing different SDF:IDF ratios at 10.16%,13.53%,16.79%,19.86%,and 24.81%,*** results indicated that the 8%SBP treatment had a negative effect on feed-to-gain ratio(linear,P=0.009)compared with the CON treatment(P=0.021).The apparent total tract digestibility(ATTD)of crude protein was lower in treatments supplemented with SBP(P=0.002)and showed a linear decrease(P=0.001),while the ATTD of IDF showed a linear increase(P=0.037)in four SBP treatments compared to the CON *** 4%SBP treatment increased serum concentrations of triglyceride(quadratic,P=0.019)and K(linear,P<0.0037),and decreased alanine transaminase concentration(quadratic,P=0.015)compared with the CON *** concentrations of Cit,Cys,Ile,Leu,Orn,Arg,taurine,urea,1-methylhistidine,α-aminoadipic acid,α-aminobutyric acid and cystathionine in the 4%SBP treatment were highest among all treatments(P<0.05).The serum concentrations of interleukin-6,interleukin-8,interleukin-10,transforming growth factor-β,and tumor necrosis factor-αin the 6%SBP treatment were higher than those in the CON treatment(P<0.05),which also increased mucin-2 and G protein-coupled receptor 41 mRNA expression(P<0.05)in colonic mucosa compared with the CON treatment and improved the intestinal barrier *** containing more than 19.86%SDF:IDF could impair the intestinal healt

关键词： Soluble dietary fiber Insoluble dietary fiber Sugar beet pulp Growth performance Intestinal health Piglet

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Zinc lactate alleviates oxidative stress by modulating crosstalk between constitutive androstane receptor signaling pathway and gut microbiota profile in weaned piglets

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Animal Nutrition 2024年第1期16卷 23-33页

作者： Wenjie Tang Xuan Xiang Houfu Wang Wentao Zhou Liuqin He Yulong Yin Tiejun Li College of Animal Science and Technology Hunan Agricultural University Sichuan Academy of Animal Sciences Animal Breeding and Genetics Key Laboratory of Sichuan Province livestock and poultry Biological products key laboratory of Sichuan Province Sichuan Animtech Feed Co. Ltd hunan provincial key laboratory of Animal Nutritional Physiology and Metabolic Process CAS Key Laboratory of Agro-Ecological Processes in Subtropical Region National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production Institute of Subtropical Agriculture Chinese Academy of Sciences College of Advanced Agricultural Science University of Chinese Academy of Sciences hunan provincial key laboratory of Animal Intestinal Function and regulation Laboratory of Animal Nutrition and Human Health College of Life Sciences Hunan Normal University

This study aimed to determine the regulatory mechanism of dietary zinc lactate (ZL) supplementation on intestinal oxidative stress damage in a paraquat (PQ)-induced piglet model. Twenty-eight piglets (mean body weight 9.51±0.23 kg) weaned at 28 d of age were randomly divided into control, ZL, PQ, and ZL+PQ groups (n=7 in each group). The ZL-supplemented diet had little effect on growth performance under normal physiological conditions. However, under PQ challenge, ZL supplementation significantly improved average daily gain (P<0.05) and reduced the frequency of diarrhea. ZL improved intestinal morphology and ultrastructure by significantly increasing the expression level of the jejunal tight junction protein, zonula occludens-1(ZO-1) (P<0.05), and intestinal zinc transport and absorption in PQ-induced piglets, which reduced intestinal permeability. ZL supplementation also enhanced the expression of antioxidant and antiinflammatory factor-related genes and decreased inflammatory cytokine expression and secretion in PQinduced piglets. Furthermore, ZL treatment significantly inhibited the activation of constitutive androstane receptor (CAR) signaling (P<0.01) in PQ-induced piglets and altered the structure of the gut microbiota, especially by significantly increasing the abundance of beneficial gut microbes, including UCG＿002, Ruminococcus, Rikenellaceae＿RC9＿gut＿group, Christensenellaceae＿R＿7＿group, Treponema, unclassified＿Christensenellaceae, and unclassified＿Erysipelotrichaceae (P <0.05). These data reveal that pre-administration of ZL to piglets can suppress intestinal oxidative stress by improving antioxidant and anti-inflammatory capacity and regulating the crosstalk between CAR signaling and gut microbiota.

关键词： Zinc lactate Intestinal barrier Oxidative stress Inflammation Constitutive androstane receptor Gut microbiota

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Effects of fermented sweet potato residue on nutrient digestibility, meat quality, and intestinal microbes in broilers

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Animal Nutrition 2024年第2期17卷 75-86页

作者： Ting Yao Chenyu Wang Lifen Liang Xuan Xiang Hui Zhou Wentao Zhou Ruoxin Hou Tianli Wang Liuqin He Shiyu Bin Yulong Yin Tiejun Li hunan provincial key laboratory of Animal Nutritional Physiology and Metabolic Process CAS Key Laboratory of Agro-Ecological Processes in Subtropical RegionNational Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry ProductionInstitute of Subtropical AgricultureChinese Academy of Sciences University of Chinese Academy of Sciences hunan provincial key laboratory of Animal Intestinal Function and regulation Laboratory of Animal Nutrition and Human HealthCollege of Life SciencesHunan Normal University key laboratory of Ecology of Rare and Endangered Species and Environmental Protection Ministry of EducationCollege of Life ScienceGuangxi Normal University

This study aimed to investigate the effects of different proportions of dietary fermented sweet potato residue(FSPR) supplementation as a substitute for corn on the nutrient digestibility, meat quality, and intestinal microbes of yellow-feathered broilers. Experiment 1(force-feeding) evaluated the nutrient composition and digestibility of mixtures with different proportions of sweet potato residue(70%, 80%,90%, and 100%) before and after fermentation. In Experiment 2(metabolic growth), a total of 420 oneday-old yellow-feathered broilers were randomly allocated to 4 groups and fed corn-soybean mealbased diets with 0, 5%, 8%, and 10% FSPR as a substitute for corn. The force-feeding and metabolic growth experiments were performed for 9 and 70 d, respectively. The treatment of 70% sweet potato residue(after fermentation) had the highest levels of crude protein, ether extract, and crude fiber and improved the digestibility of crude protein and amino acids(P quality

关键词： Fermented sweet potato residue Meat quality Intestinal microbiota Broiler

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Taxonomic dependency and spatial heterogeneity in assembly mechanisms of bacteria across complex coastal waters

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Ecological Processes 2024年第1期13卷 80-97页

作者： Huizhen Yan Dandan Lin Gaoke Gu Yujie Huang Xuya Hu Zhenhao Yu Dandi Hou Demin Zhang Barbara J.Campbell Kai Wang State key laboratory for Managing Biotic and Chemical Threats to the quality and Safety of Agro-products School of Marine SciencesNingbo University key laboratory of Marine Biotechnology of Zhejiang Province School of Marine Sciences Ningbo University Department of Biological Sciences Clemson University

Background Understanding community assembly mechanisms across taxa and space is fundamental for microbial ecology. However, the variability and determinants of assembly processes over taxa and space remain unclear. Here, we investigated taxonomic dependency and spatial heterogeneity in bacterial assembly mechanisms across coastal waters in the East China Sea using neutral and null models with customized visualization *** Overall, bacterial assembly mechanisms varied across broad taxonomic groups(phyla and proteobacterial classes) and space at the regional scale. A determinism–stochasticity balanced mechanism governed total bacterial assembly, while taxonomic dependency existed in assembly mechanisms and ecological processes. Among community ecological features, niche breadth and negative-to-positive cohesion ratio were strongly associated with the determinism-to-stochasticity ratio of bacterial groups. Bacterial assembly mechanisms commonly exhibited spatial heterogeneity, the extent and determinants of which varied across taxonomic groups. Spatial assembly of total bacteria was directly driven by many environmental factors and potential interactions between taxa, but not directly by geographic factors. Overall, the bacterial groups with higher spatial heterogeneity in assembly mechanisms were more related to environmental and/or geographic factors(except Bacteroidetes), while those with lower heterogeneity were more related to ecological *** Our results confirm the pervasiveness of taxonomic dependency and spatial heterogeneity in bacterial assembly, providing a finer understanding about regulation across complex coastal waters.

关键词： Bacterioplankton Assembly mechanism Niche breadth Null model Environmental gradient Biogeography

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WRKY33 negatively regulates anthocyanin biosynthesis and cooperates with PHR1 to mediate acclimation to phosphate starvation

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Plant Communications 2024年第5期5卷 134-147页

作者： Han Tao Fei Gao Linying Li Yuqing He Xueying Zhang Mengyu Wang Jia Wei Yao Zhao Chi Zhang Qiaomei Wang Gaojie Hong State key laboratory for Managing Biotic and Chemical Threats to the quality and Safety of Agro-products Key Laboratory of Biotechnology in Plant Protection of the MOA of China and Zhejiang ProvinceInstitute of Virology and BiotechnologyZhejiang Academy of Agricultural SciencesHangzhou 310021China State key laboratory of Subtropical Silviculture Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese MedicineZhejiang A&F UniversityHangzhou 311300China Department of Horticulture College of Agriculture and BiotechnologyZhejiang UniversityKey Laboratory of Horticultural Plant GrowthDevelopment and Quality ImprovementMinistry of AgricultureHangzhouZhejiangChina Institute of Sericulture and Tea Zhejiang Academy of Agricultural SciencesHangzhou 310000China

Anthocyanin accumulation is acknowledged as a phenotypic indicator of phosphate(Pi)***,negative regulators of this process and their molecular mechanisms remain largely *** this study,we demonstrate that WRKY33 acts as a negative regulator of phosphorus-status-dependent anthocyanin ***33 regulates the expression of the gene encoding dihydroﬂavonol 4-reductase(DFR),a rate-limiting enzyme in anthocyanin production,both directly and ***33 binds directly to the DFR promoter to repress its expression and also interferes with the MBW complex through interacting with PAP1 to indirectly inﬂuence DFR transcriptional ***�Pi conditions,PHR1 interacts with WRKY33,and the protein level of WRKY33 decreases;the repression of DFR expression by WRKY33 is thus attenuated,leading to anthocyanin accumulation in *** genetic and biochemical assays suggest that PHR1 is also involved in regulating factors that affect WRKY33 protein *** together,ourfindings reveal that Pi starvation represses WRKY33,a repressor of anthocyanin biosynthesis,tofinely tune anthocyanin ***‘‘double-negative logic’’regulation of phosphorus-status-dependent anthocyanin biosynthesis is required for the mainte-nance of plant metabolic homeostasis during acclimation to Pi starvation.

关键词： WRKY33 phosphate signaling PHR1 Arabidopsis thaliana anthocyanins

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应用物联网技术加速畜禽精准饲喂:从概念到实施

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Science Bulletin 2024年第14期69卷 2156-2160页

作者：苏家宜谭碧娥蒋宗勇吴德 C.M.Nyachoti Sung Woo Kim 印遇龙王婧 key laboratory of hunan Province for the products quality regulation of livestock and poultry College of Animal Science and TechnologyHunan Agricultural UniversityChangsha 410128China Institute of Animal Science Guangdong Academy of Agricultural SciencesGuangzhou 510640China key laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China and Animal Nutrition InstituteSichuan Agricultural UniversityChengdu 611130China Department of Animal Science University of ManitobaWinnipeg R3T 2N2Canada Department of Animal Science North Carolina State UniversityRaleigh 27695USA laboratory of Animal Nutritional Physiology and Metabolic Process Key Laboratory of Agro-Ecological Processes in Subtropical RegionNational Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry ProductionInstitute of Subtropical AgricultureChinese Academy of SciencesChangsha 410128China Yuelushan laboratory Changsha 410128China

Maximizing sow reproductive performance is vital for ensuring healthy piglet supply,feed efficiency,and profitability,which requires understanding factors such as nutrition,disease control,genetics,herd management,and their *** is well documented that most reproductive issues in sows stem from extreme fluctuations in body reserves[1].Thus,optimizing reproduction should prioritize regulating body reserves and making continuous nutritional adjustments throughout a sow’s life[1,2].However,the traditional one-size-fits-all feeding strategy may not meet individual sow needs under varying *** feeding strategy leads to nutrient under-or over-feeding,which may result in a lack of performance and health issues on the one hand,and economic loss and negative environmental effects on the other.

关键词： feeding extreme reserves

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Abnormal adipose tissue-derived microbes drive metabolic disorder and exacerbate postnatal growth retardation in piglet

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Life Metabolism 2024年第2期3卷 55-69页

作者： Tongxing Song Ming Qi Yucheng Zhu Nan Wang Zhibo Liu Na Li Jiacheng Yang Yanxu Han Jing Wang Shiyu Tao Zhuqing Ren Yulong Yin Jinshui Zheng Bie Tan College of Animal Science and Technology Huazhong Agricultural UniversityWuhanHubei 430070China College of Animal Science and Technology Hunan Agricultural UniversityChangshaHunan 410000China laboratory of Animal Nutritional Physiology and Metabolic Process CAS Key Laboratory of Agro-ecological Processes in Subtropical RegionNational Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry ProductionInstitute of Subtropical AgricultureChinese Academy of SciencesChangshaHunan 410125China State key laboratory of Agricultural Microbiology Huazhong Agricultural UniversityWuhanHubei 430070China Hubei key laboratory of Agricultural Bioinformatics Huazhong Agricultural UniversityWuhanHubei 430070China

Postnatal growth retardation(PGR)frequently occurs during early postnatal development of piglets and induces high *** date,the mechanism of PGR remains poorly *** tissue-derived microbes have been documented to be associated with several disorders of metabolism and body ***,the connection between microbial disturbance of adipose tissue and pig PGR remains ***,we investigated piglets with PGR and found that the adipose tissue of PGR piglets was charac-terized by metabolism impairment,adipose abnormality,and specific enrichment of culturable bacteria from *** of Sphingomonas paucimobilis,a species of Sphingomonas genus from the alphaproteobacteria,induced PGR in ***,this bacterium could also lead to metabolic disorders and susceptibility to acute stress,resulting in weight loss in ***,multi-omics analysis indicated the changes in lipid metabolism as a response of adipose tissue to abnormal microbial *** experimental tests proved that one of the altered lipids phosphatidylethanolamines could rescue the metabolism disorder and growth retardation,thereby suppressing the amount of Sphingomonas in the adipose ***,these results highlight that the microbe–host crosstalk may regulate the metabolic function of adipose tissue in response to PGR.

关键词： adipose tissue microbe metabolic disorder postnatal growth retardation piglet

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Insights into genetic diversity and phenotypic variations in domestic geese through comprehensive population and pan-genome analysis

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Journal of Animal Science and Biotechnology 2024年第1期15卷 88-107页

作者： Guangliang Gao Hongmei Zhang Jiangping Ni Xianzhi Zhao Keshan Zhang Jian Wang Xiangdong Kong Qigui Wang Chongqing Academy of Animal Science Rongchang DistrictChongqing 402460China livestock and poultry Multi‑Omics key laboratory of Ministry of Agriculture and Rural Affairs College of Animal Science and TechnologySichuan Agricultural UniversityChengdu 611130China Chongqing Engineering Research Center of Goose Genetic Improvement Rongchang DistrictChongqing 402460China Department of Cardiovascular Ultrasound and Non‑Invasive Cardiology Sichuan Academy of Medical Sciences and Sichuan Provincial People’s HospitalUniversity of Electronic Science and Technology of ChinaChengdu611731China Ultrasound in Cardiac Electrophysiology and Biomechanics key laboratory of Sichuan Province University of Electronic Science and Technology of ChinaChengdu611731China JiguangGene Biotechnology Co. Ltd.Nanjing210032China Jiangsu Agri-Animal Vocational College Taizhou225300China poultry Science Institute Chongqing Academy of Animal ScienceNo.51 Changzhou AvenueRongchang DistrictChongqing 402460P.R.China

Background Domestic goose breeds are descended from either the Swan goose(Anser cygnoides)or the Greylag goose(Anser anser),exhibiting variations in body size,reproductive performance,egg production,feather color,and other phenotypic *** a pan-genome facilitates a thorough identification of genetic variations,thereby deepening our comprehension of the molecular mechanisms underlying genetic diversity and phenotypic *** To comprehensively facilitate population genomic and pan-genomic analyses in geese,we embarked on the task of 659 geese whole genome resequencing data and compiling a database of 155 RNA-seq *** constructing the pan-genome for geese,we generated non-reference contigs totaling 612 Mb,unveiling a collection of 2,813 novel genes and pinpointing 15,567 core genes,1,324 softcore genes,2,734 shell genes,and 878 cloud genes in goose ***,we detected an 81.97 Mb genomic region showing signs of genome selection,encompassing the TGFBR2 gene correlated with variations in body weight among ***-wide association studies utilizing single nucleotide polymorphisms(SNPs)and presence-absence variation revealed significant genomic associations with various goose meat quality,reproductive,and body composition *** instance,a gene encoding the SVEP1 protein was linked to carcass oblique length,and a distinct gene-CDS haplotype of the SVEP1 gene exhibited an association with carcass oblique ***,the pan-genome analysis revealed enrichment of variable genes in the“hair follicle maturation”Gene Ontology term,potentially linked to the selection of feather-related traits in geese.A gene presence-absence variation analysis suggested a reduced frequency of genes associated with“regulation of heart contraction”in domesticated geese compared to their wild *** study provided novel insights into gene expression features and functions by integrating gene expression patterns across multiple orga

关键词： Gene-CDS haplotype Goose GWAS Pan-genome Presence-absence variation Selection signal

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Dietary supplementation with betaine or glycine improves the carcass trait,meat quality and lipid metabolism of finishing mini-pigs

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Animal Nutrition 2021年第2期7卷 376-383页

作者： Yinzhao Zhong Zhaoming Yan Bo Song Changbing Zheng Yehui Duan Xiangfeng Kong JinPing Deng Fengna Li Guangdong provincial key laboratory of Animal Nutrition regulation South China Agricultural UniversityGuangzhou 510642China hunan provincial key laboratory of Animal Nutritional Physiology and Metabolic Process Changsha 410125China key laboratory of Agro-ecological Processes in Subtropical Region Institute of Subtropical AgricultureChinese Academy of SciencesChangsha 410125China hunan provincial Engineering Research Center for Healthy livestock and poultry Production Changsha 410125China National Engineering laboratory for Pollution Control and Waste Utilization in livestock and poultry Production Changsha 410125China Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central Ministry of AgricultureChangsha 410125China University of Chinese Academy of Sciences Beijing 100039China College of Animal Science and Technology Hunan Agricultural UniversityChangsha 410128China

The objective of the study is to evaluate and compare the effects of betaine or glycine on carcass trait,meat quality and lipid metabolism of finishing Huan Jiang *** called trimethylglycine is a methyl derivative of glycine,but few researches were conducted to compare the impact of dietary betaine and glycine on *** hundred and forty-four Huan Jiang mini-pigs(body weight=10.55±0.15 kg;70 d)were randomly divided to 3 treatment groups(basal diet,glycine or betaine).Results indicated that dietary betaine increased the average daily gain(ADG)and final weight(Pquality of finishing Huan Jiang mini-pigs,and the effect of betaine was superior to that of glycine.

关键词： Betaine Glycine Meat quality Lipid metabolism Huan jiang mini-pig

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Effects of 105 traditional Chinese medicines on the detection ofβ-agonists in medicine extracts and swine urine based on colloidal gold immunochromatographic assay

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Journal of Integrative Agriculture 2021年第6期20卷 1626-1635页

作者： WANG Zi-lin FENG Ke-ying GE Xiu-feng MAI Jia-cheng WANG Han-chuan LIU Wen-zi ZHANG Jia-hui SHEN Xiang-guang Guangdong provincial key laboratory of Veterinary Pharmaceutics Development and Safety Evaluation South China Agricultural UniversityGuangzhou 510642P.R.China Animal and poultry products quality Control Inspection and Testing CenterMinistry of Agriculture and Rural AffairsGuangzhou 510642P.R.China

Colloidal gold immunochromatographic assay(CGIA)is commonly used for the on-site detection ofβ-agonists that are sometimes used illegally as feed additives in swine ***,few studies have evaluated the causes of false-positive results that sometimes occur when applying CGIA in agricultural *** this study,we investigated if this false-positive phenomenon is related to the addition of certain traditional Chinese medicines(TCMs)to swine *** established and verified an extraction method for TCMs,and then applied CGIA to detectβ-agonists in the extracts of 105 TCMs and in the urine of swine dosed with TCMs,*** chromatography-tandem mass spectrometry was used to validate the results of the urine samples tested positive forβ-agonists using *** results were also verified using TCMs and colloidal gold test strips produced by different *** extracts of Citri Reticulatae Pericarpium Viride,Citri Reticulatae Pericarpium,Magnoliae Officinalis Cortex,Chaenomelis Fructus,and Rhodiolae Crenulatae Radix Et Rhizoma were tested positive forβ-***,the addition of Citri Reticulatae Pericarpium Viride and Citri Reticulatae Pericarpium to swine feed resulted in false-positive results forβ-agonists in swine *** results provide a new way to explain false-positive CGIA results and provide valuable information for livestock feeding programs.

关键词： colloidal gold immunochromatographic assay false positive traditional Chinese medicine β-agonists swine urine

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