Journal of Animal Science and Technology最新文献

{"title":"Effect of tryptophan supplementation on performance, hormones, and behavioral trait in weaning pig and lactating sow.","authors":"SeRin Park, Abdolreza Hosseindoust, Jun Young Mun, Sang Hun Ha, JinSoo Kim","doi":"10.5187/jast.2025.e18","DOIUrl":"https://doi.org/10.5187/jast.2025.e18","url":null,"abstract":"<p><p>Tryptophan plays a crucial role in the regulation of aggressive behavior during stressful situations. In this study, we aim to evaluate the effects of different levels of tryptophan supplementation in the feed of weaning pigs and lactating sows. In experiment 1, a total of 144 weaning pigs (Landrace × Yorkshire × Duroc) with initial mean body weight of 6.63 ± 0.21 kg were allotted to three treatment groups with six replicates per group of eight pigs per replicate in a completely randomized design. The treatments included a control group (CW), TW6 (0.06% tryptophan + basal diet), and TW12 (0.12% tryptophan + basal diet). In experiment 2, a total of 40 lactating sows (Landrace × Yorkshire) were allotted to four treatment groups with ten replicates per group of one pig per replicate in a completely randomized design. The treatments included a control (CL) group, TL3 (0.03% tryptophan + basal diet), TL6 (0.06% tryptophan + basal diet), and TL9 (0.09% tryptophan + basal diet). The results of experiment 1 indicated the TW12 group had significantly higher (<i>p</i> < 0.05) average daily gain and feed efficiency than the CW group. Lying behavior increased in the TW6 and TW12 groups, while ear-biting behavior decreased (<i>p</i> < 0.05) in the TW12 group compared to the CW. In experiment 2, During lactation, TL3 and TL6 groups showed significantly reduced (<i>p</i> < 0.05) backfat loss compared to CL. Average daily feed intake improved with tryptophan, with TL6 significantly higher (<i>p</i> < 0.05) than CL. Additionally, lying behavior increased and stereotypic behavior decreased (<i>p</i> < 0.05) significantly. Overall, it can be concluded that the addition of tryptophan in feed can reduce aggressive behaviors, improve skin lesions, and enhance growth performance in weaning piglets. Also, the addition of tryptophan in feed can reduce stereotypic behaviors, and improve feed intake in lactating sows.</p>","PeriodicalId":14923,"journal":{"name":"Journal of Animal Science and Technology","volume":"68 2","pages":"464-477"},"PeriodicalIF":3.2,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13071736/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147690128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unlocking the nutritional benefits of dietary fiber in sow feed: a short review.","authors":"Vetriselvi Sampath, Joon Pyo Oh, In Ho Kim","doi":"10.5187/jast.2025.e9","DOIUrl":"https://doi.org/10.5187/jast.2025.e9","url":null,"abstract":"<p><p>Dietary fiber is a critical nutrient in sow diet and was addressed in several studies in the past decades. It plays a key role in improving digestive health, supporting metabolic functions, and enhancing the overall well-being of sows. Fiber, a plant-based feed ingredient is classified into soluble and insoluble fibers. Soluble fibers, such as pectin, dissolve in water and can form gels, influencing the fermentation process in the gut. Insoluble fibers, like cellulose, do not dissolve in water and contribute to the bulk of fecal matter, promoting intestinal motility. In sow nutrition, dietary fiber has been shown to offer several benefits. High-fiber diets are associated with better satiety which help to reduce constipation and support the digestive tract by enhancing gastrointestinal health. Despite the positive evidence, the practical application of fiber in sow nutrition has neither been clearly defined, nor have specific recommendations. The lack of information about fiber requirements is due to the insufficient characterization of its components in available ingredients and thus this review aims to examine the nutritional benefits of fiber in sow diets by emphasizing its importance in optimizing productivity through its effects on nutrient utilization and overall health.</p>","PeriodicalId":14923,"journal":{"name":"Journal of Animal Science and Technology","volume":"68 2","pages":"389-398"},"PeriodicalIF":3.2,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13071687/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147690192","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluating phenotypic correlations between internal and external egg quality indicators of Hy-Line Brown laying hens at 35 weeks of age.","authors":"Elijah Ogola Oketch, Myunghwan Yu, Shan Randima Nawarathne, Nuwan Chamara Chaturanga, Jeseok Lee, Haeeun Park, Jung Min Heo","doi":"10.5187/jast.2025.e24","DOIUrl":"https://doi.org/10.5187/jast.2025.e24","url":null,"abstract":"<p><p>Increased global production, and consumption of the hen egg; and the popularization of nutritional knowledge, places greater emphasis on egg quality, safety, and freshness. An understanding of the interaction between several egg quality indicators is necessary. A total of 300 freshly-laid eggs were analyzed within 24 hours of collection to investigate the phenotypic correlations between internal and external quality indicators. Eggs were analyzed for egg weight, breaking strength, shell color, albumen height, Haugh unit, yolk color, specific gravity, shell weight, shell percentage, and shell thickness at the blunt, equator, and sharp ends. Collected data was analyzed for Pearson's correlation coefficients and statistical significance was estimated at <i>p</i> < 0.05. Low positive correlations were observed between egg weight and shell weight (<i>r</i> = 0.336, <i>p</i> < 0.01). Moderate negative correlations were found between egg weight and shell percentage (<i>r</i> = -0.504, <i>p</i> < 0.01). While very strong positive correlations were found between Haugh units and albumen height (<i>r</i> = 0.949, <i>p</i> < 0.01), both parameters were not distinctly correlated to other quality indicators. Similarly, there were no significant correlations between egg yolk color and shell color to other quality indicators. While moderate positive correlations were observed between eggshell weight and shell percentage (<i>r</i> = 0.631, <i>p</i> < 0.01), both parameters were lowly correlated to the eggshell thickness and not distinctly correlated to the egg-breaking strength. High positive correlations were observed between the overall eggshell thickness and the measurements at the blunt, middle, and sharp edges (<i>r</i> = 0.975, <i>r</i> = 0.965, <i>r</i> = 0.923). Low positive correlations were observed between breaking strength and the overall, blunt edge, middle edge, and sharp edge eggshell thickness (<i>r</i> = 0.465 <i>r</i> = 0.447, <i>r</i> = 0.428, <i>r</i> = 0.453). Conclusively, no marked correlations were established between the eggshell and the internal egg quality indicators. This study contributes to understanding the relationship between shell quality and internal egg freshness, providing insights for optimizing laying hen production and egg quality assessment systems.</p>","PeriodicalId":14923,"journal":{"name":"Journal of Animal Science and Technology","volume":"68 2","pages":"629-637"},"PeriodicalIF":3.2,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13071732/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147690153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of polyphosphates on productivity and physiological characteristics in laying hens.","authors":"Hangsul Cho, Ah-Ran Lee, Jung-Hyeon Park, Yan-Quing Wang, Ji-Yun Hwang, Yong-Bum Cho, Soo-Ki Kim","doi":"10.5187/jast.2025.e8","DOIUrl":"https://doi.org/10.5187/jast.2025.e8","url":null,"abstract":"<p><p>Polyphosphates play a crucial role in enhancing nutrient absorption, energy metabolism, stress response, and cellular function and growth. However, the effects of polyphosphates on the laying performance and gut microbiota of laying hens are not known. This study assessed the effects of polyphosphate supplementation on laying performance, egg quality, blood, organ, tibia and cecal characteristics, and cecal microbiota in laying hens. A total of 100 Lohman Brown laying hens (51 weeks old) were distributed into four dietary treatments in a completely randomized design, each consisting of five replicates with four birds. Treatment groups were designated as corn-soybean meal basal diet (control), basal diet + 0.1% short-chain polyphosphate (P3), basal diet + 0.1% medium-chain polyphosphate (P14), and 0.1% long-chain polyphosphate (P130). Egg productivity rate and egg mass increased in the control and P3 group compared to the P130 group (<i>p</i> < 0.05). There was no significant effect of polyphosphate supplementation on egg weight, feed intake, FCR, Haugh unit, eggshell thickness, and eggshell weight. There were no significant differences in tibia strength among the groups. All polyphosphate groups (P3, P14, and P130) showed decreased crypt depth in the ileum and the P130 group showed an increased ratio of villus height to crypt depth (VH/CD) in the ileum (<i>p</i> < 0.05). P130 supplementation significantly increased bacterial diversity (ASVs and Chao1 index) in the cecal contents (<i>p</i> < 0.05), although there were no significant differences between groups in beta diversity and cecal microbiota composition. In conclusion, supplementation with P130 had a greater effect on the VH/CD ratio and cecal bacterial diversity while not positively affecting egg productivity, suggesting potential benefits for nutrient absorption and gut health in laying hens.</p>","PeriodicalId":14923,"journal":{"name":"Journal of Animal Science and Technology","volume":"68 2","pages":"499-515"},"PeriodicalIF":3.2,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13071671/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147690177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Endogenous phosphorus losses and standardized ileal digestibility of phosphorus in layer hens fed purified diets with diverse phosphorus sources.","authors":"Venuste Maniraguha, Shan Randima Nawarathne, Elijah Ogola Oketch, Nuwan Chamara Chathuranga, Bernadette Gerpacio Sta Cruz, Jeseok Lee, Haeeun Park, Hyunji Choi, Yu Bin Kim, Jung Min Heo, Myunghwan Yu","doi":"10.5187/jast.2025.e15","DOIUrl":"https://doi.org/10.5187/jast.2025.e15","url":null,"abstract":"<p><p>This study aimed to measure the endogenous losses, the apparent (AID), and the standard ileal digestibility (SID) of phosphorus (P) using a diet containing corn, soybean meal, and wheat bran in 45-week-old Hy-line Brown laying hens. Hens were fed experimental diets containing inorganic phosphate supplements and plant-based phosphorus sources. Experimental diets included: (i) inorganic phosphate supplements (monocalcium phosphate [MCP], dicalcium phosphate [DCP], monosodium phosphate [MSP]); (ii) plant-based phosphorus sources (corn [CRN], soybean meal [SBM], and wheat bran [WB]); and (iii) a phosphorus-free diet (P-free). Measurements were collected from the ileum and excreta over three days with six replicates per dietary treatment and four hens per cage, under <i>ad libitum</i> feeding conditions. The study demonstrated interactions (<i>p</i> < 0.05) between diet type and sampling locations on endogenous phosphorus losses. Higher endogenous phosphorus losses (<i>p</i> < 0.05) were observed in the excreta of hens fed P-free, MCP, DCP, MSP, and WB diets. Increased endogenous P losses in the ileum (<i>p</i> < 0.05) were noted in hens-fed CRN, SBM, and WB diets compared to inorganic phosphate supplement diets. The AID and SID of P were significantly lower (<i>p</i> < 0.05) in the CRN diet compared to SBM, WB, MCP, DCP, and MSP diets. Among inorganic phosphate supplements, MCP exhibited the highest SID of P, while for plant-based sources, SBM and WB demonstrated higher SID values than CRN. The AID of P was higher (<i>p</i> < 0.05) in hens fed the MCP diet compared to SBM and WB diets, but diet type did not affect the AID of dry matter (<i>p</i> > 0.05). In conclusion, diet type and sampling location influence endogenous P losses in laying hens, with differences between ileal and excreta measurements. The results highlight the variability in P bioavailability among plant-based and inorganic phosphorus sources, emphasizing the need to account for ingredient-specific P digestibility when formulating diets for optimal P utilization.</p>","PeriodicalId":14923,"journal":{"name":"Journal of Animal Science and Technology","volume":"68 2","pages":"532-540"},"PeriodicalIF":3.2,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13071706/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147690182","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of different levels of dietary crude protein on growth performance, blood profiles, nutrient digestibility, pork quality and odor emission in growing-finishing pigs.","authors":"Hongjun Kim, Minhyuk Jang, Niru Pan, Yoo Yong Kim","doi":"10.5187/jast.2025.e6","DOIUrl":"https://doi.org/10.5187/jast.2025.e6","url":null,"abstract":"<p><p>This experiment investigated the effects of varying dietary crude protein (CP) levels on growth performance, blood profiles, nutrient digestibility, pork quality, and odor emission in growing-finishing pigs. A total of 210 growing ([Yorkshire × Landrace] × Duroc) pigs (39.93 ± 0.080 kg body weight [BW]) were assigned to 1 of 6 treatments with 5 replicates of 7 pigs per pen. Diets with different CP levels (%) for early growing, late growing, early finishing, and late finishing phases, respectively, were as follows: CP1411: 14, 13, 12, 11; CP1512: 15, 14, 13, 12; CP1613: 16, 15, 14, 13; CP1714: 17, 16, 15, 14; CP1815: 18, 17, 16, 15; CP1916: 19, 18, 17, 16. Overall average daily gain decreased with increased dietary CP (linear, <i>p</i> < 0.01), while average daily feed intake increased during the late finishing period (linear, <i>p</i> < 0.01). Final BW increased as dietary CP decreased (linear, <i>p</i> < 0.01). Total protein concentration increased with higher CP levels at the 7^th, 11^th, and 13^th weeks (linear, <i>p</i> = 0.02; <i>p</i> < 0.01; <i>p</i> < 0.01; respectively). Lower CP levels decreased creatinine concentration at the 4^th and 13^th weeks (linear, <i>p</i> = 0.03; <i>p</i> < 0.01; respectively). Blood urea nitrogen and urea concentrations decreased with lower CP (linear, <i>p</i> < 0.01). Emissions of ammonia, amine, mercaptan, and hydrogen sulfide decreased with lower CP (linear, <i>p</i> < 0.01; respectively). Excreted nitrogen in urine increased with higher CP (linear, <i>p</i> < 0.01). No significant differences were observed in carcass characteristics, pH, or pork color among treatments. Reducing CP levels in the diet did not negatively impact growth performance and improved protein metabolism, reducing odor emissions from feces and urine in growing-finishing pigs.</p>","PeriodicalId":14923,"journal":{"name":"Journal of Animal Science and Technology","volume":"68 2","pages":"448-463"},"PeriodicalIF":3.2,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13071707/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147690211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biological functions of methylsulfonylmethane and its application in animal production: a review.","authors":"Yang Jiao, Xinran Li, Hengjiang Li, In Ho Kim","doi":"10.5187/jast.2400330","DOIUrl":"https://doi.org/10.5187/jast.2400330","url":null,"abstract":"<p><p>With the increasing demand for feed additives that are green, safe, and free of drug residues, methylsulfonylmethane (MSM) has received extensive attention in animal production, and the research has been deepening. MSM is a sulfur-containing organic substance that is widely distributed in nature, with many biological functions, including antioxidant, anti-inflammatory, immune regulation, improvement of intestinal health, joint protection, and skin and hair nourishment, etc. It plays an important role in maintaining normal metabolism in the body and has considerable potential for application in the healthy rearing of animals. This paper reviews the biological functions and regulatory mechanisms of MSM, as well as its applications in animal production, including improving growth performance, reducing lipid peroxidation, improving meat quality, increasing disease resistance, and enhancing anti-stress ability. This is done in order to provide a reference for subsequent scientific research.</p>","PeriodicalId":14923,"journal":{"name":"Journal of Animal Science and Technology","volume":"68 2","pages":"373-388"},"PeriodicalIF":3.2,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13071705/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147690164","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimizing tryptophan supplementation for stress reduction and enhanced productivity in aging laying hens.","authors":"Abdolreza Hosseindoust, SeRin Park, Jun Young Mun, Sang Hun Ha, JinSoo Kim","doi":"10.5187/jast.2025.e1","DOIUrl":"https://doi.org/10.5187/jast.2025.e1","url":null,"abstract":"<p><p>This study explores the effects of dietary tryptophan (Trp) supplementation on stress mitigation and production parameters in aging laying hens housed under high-density conditions. A total of 700 Hy-line laying hens, aged 70 weeks, were used in the experiment. The hens were divided into four groups, receiving diets supplemented with 0%, 0.25%, 1%, and 2% Trp over a four-week period. The study aimed to evaluate the impact of Trp on Hen-Day Egg Production (HDEP), egg mass, feed conversion ratio (FCR), and a range of physiological and biochemical stress indicators. The results indicated a quadratic response in HDEP and egg mass, with optimal production achieved at 1% Trp supplementation. Egg weight was linearly decreased by Trp supplementation. The FCR was quadratically affected, with lower FCR achieved at 0.25% and 1% Trp supplementation. The content of white blood cells, heterophiles, lymphocytes, and monocytes in blood was linearly reduced by supplementation of Trp. A linear decrease in the content of red blood cells, hemoglobin, and hematocrit was observed with the supplementation of Trp. The concentration of triglyceride was linearly decreased, and an increasing quadratic response was observed up to the level of 1% Trp inclusion and decreased thereafter. The content of glucose in blood was linearly increased by supplementation of Trp. the concentration of immunoprecipitation and lactate dehydrogenase was linearly decreased with supplementation of Trp. The concentration of blood corticosterone was higher in laying hens fed 0 and 0.25% of Trp compared with 1 and 2% supplementation. The concentration of blood serotonin was higher in laying hens fed 0.25 and 2% of Trp compared with 0% supplementation. In week 4, an increasing linear response was observed by Trp inclusion for yolk color, shell strength, and shell thickness. The study concludes that 1% Trp supplementation not only enhances productivity and egg quality but also contributes to reduced stress for laying hens.</p>","PeriodicalId":14923,"journal":{"name":"Journal of Animal Science and Technology","volume":"68 2","pages":"478-486"},"PeriodicalIF":3.2,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13071719/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147690194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Probiotic <i>Lactiplantibacillus plantarum</i> improved growth performance of weaned pigs by enhancing intestinal health and modulating immune responses.","authors":"Hyunjin Kyoung, Kyeong Il Park, Seungchul Shin, Jinmu Ahn, Jinuk Nam, Yonggu Kang, Hansol Hwang, Younghoon Kim, Sung Woo Kim, Yoon Tack Jang, Minho Song","doi":"10.5187/jast.2025.e22","DOIUrl":"https://doi.org/10.5187/jast.2025.e22","url":null,"abstract":"<p><p>The objective of this study was to evaluate the effects of dietary probiotic <i>Lactiplantibacillus plantarum</i> on growth performance, nutrient digestibility, immune responses, and intestinal health of weaned pigs. In a randomize complete block design (block: initial body weight), a total of 40 weaned pigs (initial body weight: 6.93 ± 0.27 kg) were assigned to 2 dietary treatments (1 pig/pen; 10 replicates/treatment): 1) a basal weaner diet based on corn and soybean meal (CON) and 2) CON + 0.1% dietary probiotic <i>L. plantarum</i> (PRO). Pigs fed PRO had increased (<i>p</i> < 0.05) body weight, average daily gain, and gain to feed ratio during the overall period than those fed CON. Pigs in PRO had greater (<i>p</i> < 0.05) apparent ileal digestibility of crude protein than those in CON. However, there were no differences on apparent total tract digestibility of dry matter, crude protein, and energy between dietary treatments. The PRO group decreased (<i>p</i> < 0.05) crypt depth in the duodenum compared with the CON group, but increased (<i>p</i> < 0.05) number of goblet cells in the ileum. Pigs fed PRO had lower (<i>p</i> < 0.05) serum cortisol on day 7 and number of white blood cells on day 21 than those fed CON, but higher (<i>p</i> < 0.05) serum interleukin-6 on day 21. The PRO group upregulated (<i>p</i> < 0.05) claudin-2, claudin-3, claudin-4, occludin, and mucin-1 genes expression in the ileum compared with the CON group. Pigs fed PRO had altered gut microbial composition by increasing (<i>p</i> < 0.05) the relative abundance of genera <i>Enterococcus</i> and <i>Pediococcus</i> in fecal microbiota on day 7, genera <i>Lactobacillus</i> and <i>Streptococcus</i> in fecal microbiota on day 21, and genera <i>Streptococcus</i> and <i>Turicibacter</i> in jejunal microbiota on day 35 compared with pigs fed CON. Our findings suggest that supplementation of probiotic <i>L. plantarum</i> in weaner diets can enhance the growth performance of weaned pigs via modified intestinal health by improving intestinal morphology, upregulating tight junction protein genes expression, and altering microbial communities. Furthermore, the dietary probiotic <i>L. plantarum</i> modulated systemic immune responses and local inflammatory cytokine genes expression in the ileum of weaned pigs.</p>","PeriodicalId":14923,"journal":{"name":"Journal of Animal Science and Technology","volume":"68 2","pages":"541-561"},"PeriodicalIF":3.2,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13071709/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147690180","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modulation of microbial community and metabolism through <i>Lactiplantibacillus argentoratensis</i> AGMB00912 supplementation in weaning piglets.","authors":"Ki-Nam Yoon, Han Gyu Lee, Seo-Joon Yeom, Sang-Su Kim, Jong-Heum Park, Beom-Seok Song, Seung-Won Yi, Tai-Young Hur, Jong-Bang Eun, Seung-Hwan Park, Ju Huck Lee, Hyeun Bum Kim, Ju-Hoon Lee, Jae-Kyung Kim","doi":"10.5187/jast.2024.e122","DOIUrl":"https://doi.org/10.5187/jast.2024.e122","url":null,"abstract":"<p><p>Dietary supplementation effects with <i>Lactiplantibacillus argentoratensis</i> strain AGMB00912 (LA) on gut microbiota and metabolic functions of weaned piglets were investigated. Eight 25-day-old weaned piglets were evenly divided into a control group and an LA-supplemented group, with the LA group receiving 1.0 × 10⁸ CFU/mL of LA daily for 10 days. Fecal samples taken on the 10^th day were analyzed using 16S rRNA gene sequencing to assess microbial composition and metabolic function prediction. Supplementation with LA promoted a stable microbial environment by increasing the relative abundance of short-chain fatty acid-producing bacteria, including <i>Faecalitalea</i>, <i>Catenibacterium</i>, and <i>Butyrivibrio</i>, while reducing harmful genera like <i>Treponema</i> and <i>Campylobacter</i>. Administration of LA significantly influenced the metabolic activity of the microbial community, particularly by upregulating carbohydrate metabolism pathways, which enhanced the capacity for short-chain fatty acid production. This shift in microbial metabolism also extended to pathways involved in the biosynthesis of amino acids, lipids, cofactors, and vitamins, indicating an improved capacity for microbial-driven nutrient assimilation and utilization. Furthermore, LA supplementation promoted the biosynthesis of antimicrobial non-ribosomal peptides within the microbiome, crucial for inhibiting the growth of pathogenic microorganisms and maintaining microbial balance. The modulation of microbial metabolism is also predicted to reduce glycan degradation and increase peptidoglycan biosynthesis, contributing to enhanced gut barrier function and a more regulated immune response. These metabolic changes within the microbial community are predicted to stabilize the gut microbiota, providing enhanced disease resistance and supporting the overall health and growth of weaned piglets.</p>","PeriodicalId":14923,"journal":{"name":"Journal of Animal Science and Technology","volume":"68 2","pages":"562-585"},"PeriodicalIF":3.2,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13071724/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147690147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}