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Supplementation of vitamin E or a botanical extract as antioxidants to improve growth performance and health of growing pigs housed under thermoneutral or heat-stressed conditions

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Journal of animal Science and Biotechnology 2024年第3期15卷 1101-1118页

作者： Ysenia V.Silva‑Guillen Consuelo Arellano Jeffrey Wiegert R.Dean Boyd Gabriela E.Martinez Eric van Heugten department of animal Science North Carolina State UniversityRaleighNC 27695USA department of Statistics North Carolina State UniversityRaleighNC 27695USA department of animal Science Texas A&M UniversityCollege StationTX 77843USA animal nutrition Research LLCAlvatonKY 42122USA.

Background Heat stress has severe negative consequences on performance and health of pigs,leading to significant economic *** objective of this study was to investigate the effects of supplemental vitamin E and a botanical extract in feed or drinking water on growth performance,intestinal health,and oxidative and immune status in grow-ing pigs housed under heat stress *** Duplicate experiments were conducted,each using 64 crossbred pigs with an initial body weight of 50.7±3.8 and 43.9±3.6 kg and age of 13-week and 12-week,***(n=128)were housed individually and assigned within weight blocks and sex to a 2×4 factorial arrangement consisting of 2 environments(thermo-neutral(21.2℃)or heat-stressed(30.9℃))and 4 supplementation treatments(control diet;control+100 IU/L of D-α-tocopherol in water;control+200 IU/kg of DL-α-tocopheryl-acetate in feed;or control+400 mg/kg of a botanical extract in feed).Results Heat stress for 28 d reduced(P≤0.001)final body weight,average daily gain,and average daily feed intake(-7.4 kg,-26.7%,and-25.4%,respectively)but no effects of supplementation were detected(P>0.05).Serum vitamin E increased(Pfeed(1.64 vs.3.59 and 1.64 vs.3.24),but not for the botanical extract(1.64 vs.1.67 mg/kg)and was greater when supplemented in water ***(P=0.002).Liver vitamin E increased(Pfeed(3.9 vs.18.0),but not with the botanical extract(3.9 vs.4.9 mg/kg).Serum malondialdehyde was reduced with heat stress on d 2,but increased on d 28(interaction,Pfeed and water under heat stress(interaction,P=0.04).Tumor necrosis factor-αin jejunum and ileum mucosa decreased by heat stress(P<0.05)and was re

关键词： Botanical extract Growing pigs Heat stress Immune status Oxidative status Tocopherol Water

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Decreased eggshell strength caused by impairment of uterine calcium transport coincide with higher bone minerals and quality in aged laying hens

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Journal of animal Science and Biotechnology 2024年第3期15卷 1258-1277页

作者： Yu Fu Jianmin Zhou Martine Schroyen Haijun Zhang Shugeng Wu Guanghai Qi Jing Wang Key Laboratory of feed Biotechnology Ministry of Agriculture and Rural AffairsInstitute of Feed ResearchChinese Academy of Agricultural SciencesBeijing 100081China Precision Livestock and nutrition Laboratory Gembloux Agro‑Bio TechTERRA Teaching and Research CentreUniversity of LiegeGembloux B‑5030Belgium

Background Deteriorations in eggshell and bone quality are major challenges in aged laying *** study compared the differences of eggshell quality,bone parameters and their correlations as well as uterine physiologi-cal characteristics and the bone remodeling processes of hens laying eggs of different eggshell breaking strength to explore the mechanism of eggshell and bone quality reduction and their interaction.A total of 24074-week-old Hy-line Brown laying hens were selected and allocated to a high(HBS,44.83±1.31 N)or low(LBS,24.43±0.57 N)eggshell breaking strength *** A decreased thickness,weight and weight ratio of eggshells were observed in the LBS,accompanied with ultrastructural deterioration and total Ca *** quality was negatively correlated with eggshell quality,marked with enhanced structures and increased components in the *** the LBS,the mammillary knobs and effective layer grew *** the initiation stage of eggshell calcification,a total of 130 differentially expressed genes(DEGs,122 upregulated and 8 downregulated)were identified in the uterus of hens in the LBS relative to those in the *** DEGs were relevant to apoptosis due to the cellular Ca *** values of p62 protein level,caspase-8 activity,Bax protein expression and lower values of Bcl protein expression and Bcl/Bax ratio were seen in the *** assay and hematoxylin-eosin staining showed a significant increase in TUNEL-positive cells and tissue damages in the uterus of the *** few DEGs were identified at the growth stage,similar uterine tissue damages were also observed in the *** expressions of runt-related transcription factor 2 and osteocal-cin were upregulated in humeri of the *** diameter and more structural damages of endocortical bones and decreased ash were observed in femurs of the *** The lower eggshell breaking strength may be attributed to a declined Ca transport due to uterine tissue damages,which

关键词： Bone parameter Calcium transport Eggshell quality Laying hen Tissue damage

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Excess dietary Lys reduces feed intake, stimulates jejunal CCK secretion and alters essential and non‑essential blood AA profile in pigs

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Journal of animal Science and Biotechnology 2024年第3期15卷 1336-1346页

作者： Maximiliano Muller Elout Van Liefferinge Alan Tilbrook Robert van Barneveld Eugeni Roura Centre for nutrition and Food Sciences Queensland Alliance for Agriculture and Food InnovationThe University of QueenslandBrisbaneQueensland 4072Australia Laboratory of animal nutrition and animal Product Quality(LANUPRO) Department of Animal Sciences and Aquatic EcologyGhent University339000 GhentFlandersBelgium Centre for animal Science Queensland Alliance for Agriculture and Food Innovation and the School of Veterinary ScienceThe University of QueenslandBrisbaneQueensland 4072Australia SunPork Group BrisbaneQueensland 4009Australia

Background Commercial diets are frequently formulated to meet or exceed nutrient levels including those of lim-iting essential amino acids(AA)covering potential individual variations within the ***,the provision of dietary excess of AA,such as Lys,may lead to reduced appetite and growth in *** mechanisms modulat-ing these responses have not been extensively *** study evaluated the effect of Lys dietary excesses on performance and satiety biomarkers in post weaning *** Twenty-four pigs aged 21 d and weighing 6.81±0.12kg(mean±SEM)were individually housed and offered 1 of 4 dietary treatments for 3weeks:a diet containing a standardized ileal digestible Lys reaching 100%(T0),120%(T1),150%(T2)or 200%(T3)of the NRC(2012)*** the end of the experiment,blood samples from the cephalic vein of the T0 and T3 groups were obtained for AA *** addition,primary intestinal cultures from T0 pigs were used,following their humane killing,to evaluate the effect of Lys on gut hormone secretion and AA sensors gene expression under ex vivo *** feed intake was linearly reduced(Pfeed ratio reduced(P<0.10)with increased dietary levels of Lys during the third-and first-week post weaning,*** con-centration(P<0.05)and the metabotropic glutamate receptor 1 and the solute carrier family 7 member 2(P<0.10)gene expression was enhanced in proximal jejunum tissues incubated with Lys at 20mmol/L when compared to the control(Lys 0mmol/L).Plasma Lys and Glu(P<0.05)concentration increased in the T3 compared to T0 *** contrast,plasma levels of His,Val,Thr,Leu(P<0.05)and Gln(P<0.10)were lower in T3 than T0 *** The present results confirm that excess dietary Lys inhibits hunger in ***,the results provide evidence of pre-and post-absorptive mechanisms modulating these *** dietary excesses should be nar-rowed,when possible,to avoid negative effects of

关键词： Amino acid Blood Cholecystokinin feed intake Lysine Pig Satiety

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Effects of the concentration and nature of total dissolved solids in drinking water on feed intake, nutrient digestion, energy balance,methane emission, ruminal fermentation, and blood constituents in different breeds of young goats and hair sheep

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animal nutrition 2024年第01期16卷 84-95页

作者： Amlan Kumar Patra Luana Paula dos Santos Ribeiro Hirut Yirga Adekayode O.Sonibare Ahmed R.Askar Ali H.Hussein Ryszard Puchala Arthur Louis Goetsch American Institute for Goat Research Langston University animal and Poultry nutrition department Desert Research Center Agriculture Food and Natural ResourcesEastern New Mexico University

Understanding how different livestock species and breeds respond to consumption of brackish water could improve usage of this ***,Angora,Boer,and Spanish goat doelings and Dorper,Katahdin,and *** ewe lambs (6 animals per animal type[AT];initial age=296±2.1 days)consuming water with varying concentrations of minerals of a natural brackish water source (BR) and sodium chloride (NaCl;SL) were used to determine effects on water and feed intake,nutrient digestion,heat energy,methane emission,ruminal fluid conditions,and blood constituent *** were 6 simultaneous 6 (water treatments[WT])×6 (AT) Latin squares with 3-wk *** WT were fresh (FR),BR alone (100-BR),a similar total dissolved solids (TDS) concentration as 100-BR via NaCl addition to FR (100-SL),BR with concentrations of all minerals increased by approximately 50%(150-BR),a similar TDS level as 150-BR by NaCl addition to FR (150-SL),and a similar 150 TDS level achieved by addition of a 1:1 mixture of BR minerals and NaCl to 100-BR (150-BR/SL).Concentrations (mg/kg) in BR were 4928 TDS,85.9 bicarbonate,224.9 calcium,1175 chloride,60.5 magnesium,4.59 potassium,1387sodium,1962 sulfate,and 8.3 boron,and TDS in other WT were 209,5684,7508,8309,and 7319 mg/kg for FR,100-SL,150-BR,150-SL,and 150-BR/SL,*** were very few significant effects of WT or AT×WT interactions,although AT had numerous *** intake was affected by AT (P=0.02)and WT (P=0.04),with greater water intake for 150-SL than for FR,100-BR,100-SL,and *** matter intake among AT was lowest (P<0.05) for *** of organic matter and neutral detergent fiber and heat energy differed among AT (P<0.05),but nitrogen digestion and ruminal methane emission were similar among *** aldosterone concentration was higher (P<0.05) for FR than for other *** conclusion,all AT seemed resilient to these WT regardless of mineral source and concentrations,with TDS less than 8300 mg/kg,which did

关键词： Goats Hair sheep Nutrient utilization Ruminal fermentation Salinity Water quality

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Transcriptome analysis reveals steroid hormones biosynthesis pathway involved in abdominal fat deposition in broilers

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Journal of Integrative Agriculture 2024年第9期23卷 3118-3128页

作者： Yuting Zhu Yongli Wang Yidong Wang Guiping Zhao Jie Wen Huanxian Cui State Key Laboratory of animal nutrition/Key Laboratory of animal(Poultry)Genetics Breeding and Reproduction Ministry of Agriculture and Rural Affairs/Institute of Animal SciencesChinese Academy of Agricultural SciencesBeijing 100193China

Excessive abdominal fat deposition reduces the feed efficiency and increase the cost of production in ***,it is an important task for poultry breeders to breed broilers with low abdominal *** fat deposition is a highly complex biological process,and its molecular basis remains *** this study,we performed transcriptome analysis to compare gene expression profiles at different stages of abdominal fat deposition to identify the key genes and pathways involved in abdominal fat *** found that abdominal fat weight(AFW)increased gradually from day 35(D35)to 91(D91),and then decreased at day 119(D119).Accordingly,after detecting differentially expressed genes(DEGs)by comparing gene expression profiles at D35 vs.D63 and D35 vs.D91,and identifying gene modules associated with fat deposition by weighted gene co-expression network analysis(WGCNA),we performed intersection analysis of the detected DEGs and WGCNA gene modules and identified 394 and 435 intersecting genes,*** results of the Gene Ontology(GO)functional enrichment analysis and Kyoto Encyclopedia of Genes and Genomes(KEGG)pathway enrichment analyses showed that the steroid hormone biosynthesis and insulin signaling pathways were co-enriched in all intersecting genes,steroid hormones have been shown that regulated insulin signaling pathway,indicating the importance of the steroid hormone biosynthesis pathway in the development of broiler abdominal *** then identified 6 hub genes(ACTB,SOX9,RHOBTB2,PDLIM3,NEDD9,and DOCK4)related to abdominal fat *** analysis also revealed that there were direct interactions between 6 hub ***9 has been shown to bind to proteins required for steroid hormone receptor binding,and RHOBTB2 indirectly regulates the steroid hormones biosynthesis through cyclin factor,and ultimately affect fat *** results suggest that the genes RHOBTB2 and SOX9 play an important role in fat deposition in broilers,by regul

关键词： broilers abdominal fat deposition transcriptome analysis hub genes steroid hormones biosynthesis pathway

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Supplementation of Lycium barbarum residue increases the growth rate of Tan sheep by enhancing their feed intake and regulating their rumen microbiome and metabolome

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Journal of Integrative Agriculture 2024年第9期23卷 3129-3144页

作者： Yajun Zhang Xiao Chang Bing Wang Dawei Wei Rongzhen Zhong Yansheng Guo Min Du Guijie Zhang College of Forestry and Prataculture Ningxia UniversityYinchuan 750021China Jilin Provincial Key Laboratory of Grassland Farming Northeast Institute of Geography and AgoecologyChinese Academy of SciencesChangchun 130102China State Key Laboratory of animal nutrition/College of animal Science and technology China Agricultural UniversityBeijing 100193China College of animal Science and technology Ningxia UniversityYinchuan 750021China Nutrigenomics and Growth Biology Laboratory Department of Animal SciencesWashington State UniversityPullmanWA 99164USA

Lycium barbarum residue(LBR),a by-product of *** processing,is packed with bioactive components and can be potentially utilized as a feed additive in animal ***,the fundamental understanding of its effectiveness on livestock animals is still lacking,particularly in *** explore the effects of LBR on the growth performance,rumen fermentation parameters,ruminal microbes and metabolites of Tan sheep,sixteen fattening rams(aged 4 mon)were fed a basal diet(CON,n=8)or a basal diet supplemented with 5%LBR(LBR,n=8).The experiment lasted for 70 d,with 10 d adaptation period and 60 d treatment *** results showed that the LBR enhanced the average daily feed intake,average daily gain(P<0.05),and ruminal total volatile fatty acids(P<0.01)while decreasing ammonia-nitrogen concentration and rumen pH value(P<0.05).Additionally,the LBR improved the relative abundances of Prevotella,Succiniclasticum,Ruminococcus,Coprococcus,Selenomonas,and Butyrivibrio(P<0.05)and reduced the relative abundances of Oscillospira and Succinivibrio(P<0.05).The LBR altered the ruminal metabolome(P<0.01)by increasing the abundances of ruminal metabolites involved in amino acids(e.g.,L-proline,L-phenylalanine,L-lysine,and L-tyrosine),pyrimidine metabolism(e.g.,uridine,uracil,and thymidine),and microbial protein synthesis(e.g.,xanthine and hypoxanthine).In conclusion,LBR had positive effects on the growth rate of Tan sheep as well as on rumen fermentation parameters,rumen microbiome and rumen metabolome.

关键词： Lycium barbarum residue rumen microbiome metabolomics growth performance Tan sheep

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Dietary Macleaya cordata extract supplementation improves the growth performance and gut health of broiler chickens with necrotic enteritis

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Journal of animal Science and Biotechnology 2024年第1期15卷 374-395页

作者： Bochen Song Jie He Xue Pan Linglian Kong Chuanpi Xiao Chake Keerqin Zhigang Song Key Laboratory of Efficient Utilization of Non‑Grain feed Resources College of Animal Science and TechnologyShandong Agricultural UniversityTaian 271018ShandongChina Center for Mitochondria and Healthy Ageing College of Life SciencesYantai UniversityYantai 264005ShandongChina Precision Livestock and nutrition Unit University of LiègeGembloux Agro‑Bio TechGemblouxBelgium Phytobiotics(Jiangsu)Biotech Co. Ltd.Jintan 213200China

Background The poultry industry needs effective antibiotic alternatives to control outbreaks of necrotic enteritis(NE)caused by Clostridium *** The aim of this study was to investigate the effects of dietary supplementation with Macleaya cordata extract(MCE)on the immune function and gut microbiota of broilers with NE.A total of 2881-day-old broiler chicks were randomly assigned to a 2×2 factorial arrangement with two concentrations of dietary MCE supplementation(0 or 350 mg/kg of diet)and two disease challenge statuses(control or NE).Results The results revealed that NE significantly increased the feed conversion rate(FCR),mortality,intestinal lesion score,the levels of IL-1β,IL-17 and IFN-γ/IL-4 in serum and IL-17/IL-10 in the jejunal mucosa,m RNA levels of TLR2,IFN-γand p Ig R in the jejunum,and Clostridium perfringens concentrations in the *** significantly decreased the body weight(BW),body weight gain(BWG),jejunal villus height,V/C,m RNA level of AMPK-α1 in jejunum,IL-4 level in the jejunal mucosa and lactic acid bacteria abundance in the *** significantly increased BW,BWG,jejunal villus height,V/C,m RNA levels of occludin,ZO-1 and AMPK-α1 in the jejunum,the levels of Ig A and Ig G in serum and IL-10 in the jejunal mucosa and m RNA levels of NF-κB,IL-10 and MHC-II in the ***,MCE significantly decreased the FCR,mortality,intestinal lesion score,jejunal crypt depth,the levels of IFN-γand IL-17 in serum and IL-17/IL-10 in the jejunal mucosa,Clostridium perfringens concentrations in the cecum,and m RNA levels of IL-17/IL-10 in the ***,NE significantly increased the abundance of bacteria that are associated with inflammation,obesity and depression(Alistipes,Barnesiella,Intestinimonas,RF39 and UCG-005)and significantly decreased the abundance of short-chain fatty acid(SCFA)-producing bacteria(Anaerotruncus,Butyricicoccus and Bacteroides)in the *** significantly increased the abundance of SCFA-producing b

关键词： Broiler chicken Gut microbiota Immune function Macleaya cordata extract Necrotic enteritis

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Dietary Lipid Intervention in the Prevention of Brain Aging

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Engineering 2024年第6期37卷 128-137页

作者： Wei Xiong Bing Fang Xiaoyu Wang Ming Zhang Min Du Jiazeng Sun Juan Chen Yixuan Li Changhao Sun Xingen Lei Xue Zhang Fazheng Ren Key Laboratory of Precision nutrition and Food Quality Department of Nutrition and HealthChina Agricultural UniversityBeijing 100083China Key Laboratory of Functional Dairy Co-Constructed by the Ministry of Education and Beijing MunicipalityCollege of Food Science and Nutritional EngineeringChina Agricultural UniversityBeijing 100083China School of Food Science and Chemical Engineering Beijing Technology and Business UniversityBeijing 100048China department of animal Science Washington State UniversityPullmanWA 99164USA department of nutrition and Food Hygiene School of Public HealthHarbin Medical UniversityHarbin 150028China department of animal Science Cornell UniversityIthacaNY 14853USA National Health Commission(NHC)and Chinese Academy of Medical Sciences(CAMS)Key Laboratory of Molecular Probe and Targeted Theranostics Harbin Medical UniversityHarbin 150028China

As people live longer,the burden of aging-related brain diseases,especially dementia,is *** aging increases the risk of cognitive impairment,which manifests as a progressive loss of neuron function caused by the impairment of synaptic plasticity via disrupting lipid ***,supplemental dietary lipids have the potential to prevent brain *** review summarizes the important roles of dietary lipids in brain function from both structure and mechanism *** and animal studies have provided evidence of the functions of polyunsaturated fatty acids(PUFAs)in brain *** results of interventions indicate that phospholipids—including phosphatidylcholine,phosphatidylserine,and plasmalogen—are efficient in alleviating cognitive impairment during aging,with plasmalogen exhibiting higher efficacy than *** is a recognized nutrient used in clinical trials due to its special vinyl ether bonds and abundance in the postsynaptic membrane of *** research should determine the dose-dependent effects of plasmalogen in alleviating brain-aging diseases and should develop extraction and storage procedures for its clinical application.

关键词： Brain aging nutritional intervention Phospholipids Phosphatidylcholine Phosphatidylserine Plasmalogen

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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 UniversityChangsha 410128China 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 SciencesChangsha 410125China Hunan Provincial Key Laboratory of animal Intestinal Function and Regulation Laboratory of Animal Nutrition and Human HealthCollege of Life SciencesHunan Normal UniversityChangsha 410081China College of Advanced Agricultural Science University of Chinese Academy of SciencesBeijing 100049China Sichuan Academy of animal Sciences Animal Breeding and Genetics Key Laboratory of Sichuan ProvinceChengdu 610066China Livestock and Poultry Biological Products Key Laboratory of Sichuan Province Sichuan Animtech Feed Co.LtdChengdu 610000China

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 ***-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 ***,under PQ challenge,ZL supplementation significantly improved average daily gain(P<0.05)and reduced the frequency of *** 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 *** supplementation also enhanced the expression of antioxidant and antiinflammatory factor-related genes and decreased inflammatory cytokine expression and secretion in PQinduced ***,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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Phenolic profile， antioxidant properties， and beneficial gut microbiota associated with freeze dried Lycium ruthenicum

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Food Science and Human Wellness 2024年

作者： Jing Huang Xueni Fan Xin Li Dingmei Dai Wenjie Huang Dong Ruan Shijuan Yan Xiaodan Huang School of Public Health， Lanzhou University Guangdong Key Laboratory for Crop Germplasm Resources Preservation and Utilization， Agro-biological Gene Research Center， Guangdong Academy of Agricultural Sciences Institute of animal Science， Guangdong Academy of Agricultural Sciences， Key Laboratory of animal nutrition and feed Science in South China， Ministry of Agriculture and Rural Affairs， State Key Laboratory of Livestock and Poultry Breeding， Guangdong Key Laboratory of animal Breeding and nutrition

Black wolfberry (Lycium ruthenicum) is enriched in phytochemical metabolites which can benefit human health. However， few studies have examined the effects of different fruit drying methods on its polyphenol content， antioxidant activity， and anti-inflammatory activity. In addition， whether and how consuming dried black wolfberry affects gut microbiota has not been reported. Here， we assessed the phytochemical profile and bioactivities of black wolfberry dried through different methods， and subsequently characterized changes in human fecal microbiota associated with freeze-dried black wolfberry in vitro. The results showed that freeze-dried samples retained higher total polyphenols (49.68 ± 1.62) mg GAE/g， tannins (38.64 ± 1.35) mg GAE/g， and proanthocyanidins (3.35 ± 0.30) mg/g compared to sun drying or hot air drying (P < 0.05)， and exhibited higher antioxidant and anti-inflammatory activities. In bioreactor fermentations of human fecal inoculum， freeze-dried black wolfberry was associated with increased species richness and alpha diversity. At the genus level， fermentations treated with black wolfberry had higher abundance of Lactic Acid Bacteria including Lactococcus， Bifidobacterium， Lactobacillus， Pediococcus and Weissella， as well as butyrate-producing bacteria compared to the untreated samples， suggesting enrichment for taxa associated with a healthy gut microbiome. In addition， the black wolfberry treatment group had higher levels of short-chain fatty acids， which was consistent with PICRUSt2 inference. This study defines an optimal method for black wolfberry preservation to retain the beneficial compounds， and provides a foundation for further exploration of its potential benefits for human gut microbiota.

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