Animal Science Journal最新文献_第3页

Prediction Equation Development for Methane-Related Traits Accounting for Physiological Traits in Japanese Black Cattle 日本黑牛生理性状甲烷相关性状预测方程的建立

IF 1.2 3区农林科学

Animal Science Journal Pub Date : 2026-01-05 DOI: 10.1111/asj.70144

Huseong Lee, Minji Kim, Tatsunori Masaki, Kohei Oikawa, Akane Ashihara, Kentaro Ikuta, Eiji Iwamoto, Itoko Nonaka, Satoshi Haga, Sanggun Roh, Tomoyuki Suzuki, Fuminori Terada, Yoshinobu Uemoto

{"title":"Prediction Equation Development for Methane-Related Traits Accounting for Physiological Traits in Japanese Black Cattle","authors":"Huseong Lee, Minji Kim, Tatsunori Masaki, Kohei Oikawa, Akane Ashihara, Kentaro Ikuta, Eiji Iwamoto, Itoko Nonaka, Satoshi Haga, Sanggun Roh, Tomoyuki Suzuki, Fuminori Terada, Yoshinobu Uemoto","doi":"10.1111/asj.70144","DOIUrl":"https://doi.org/10.1111/asj.70144","url":null,"abstract":"<div>\u0000 \u0000 Reducing enteric methane (CH4) emissions from cattle is a priority in the agricultural sector. The total amount of CH4 emissions from beef cattle is larger than that from dairy cattle in Japan, and thus, it is important to quantify CH4 emission from beef cattle. The objective of this study was to investigate the physiological traits associated with methane-related traits and to develop a prediction equation that accounts for these physiological traits in Japanese Black cattle. Enteric CH4 emission (L/day) was predicted from the concentration of CH4 to carbon dioxide (CO2) ratio obtained by the Sniffer method in 156 Japanese Black cattle (111 heifers and 45 steers). In regression tree analysis, methane-related traits, including CH4, were used as dependent variables, and physiological traits were used as independent variables. Main physiological traits such as ruminal ammonia, propionate, butyrate, beta-hydroxybutyrate, creatine kinase, urea, and valine, which are associated with methane-related traits, were selected through regression tree analysis. The newly developed equations, which include not only feed intake and growth traits but also physiological traits, demonstrate improved prediction accuracy in Japanese Black cattle. These findings indicate that physiological traits can be utilized to develop accurate prediction equations for methane-related traits in Japanese Black cattle.\u0000 </div>","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"97 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145904691","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of Oxidative Stress and Antioxidant Activity in Uterine Flush Fluid During Early Postpartum on Reproductive Performance of Lactating Holstein-Friesian Dairy Cows. 产后早期子宫冲洗液氧化应激和抗氧化活性对泌乳荷斯坦-弗里奶牛繁殖性能的影响

IF 1.6 3区农林科学

Animal Science Journal Pub Date : 2026-01-01 DOI: 10.1111/asj.70200

Yujiro Hagita, Ryotaro Miura, Koumei Shirasuna, Tsuyoshi Tajima, Kazuhiro Bandai, Tadaharu Ajito, Hirotaka Matsumoto

{"title":"Effects of Oxidative Stress and Antioxidant Activity in Uterine Flush Fluid During Early Postpartum on Reproductive Performance of Lactating Holstein-Friesian Dairy Cows.","authors":"Yujiro Hagita, Ryotaro Miura, Koumei Shirasuna, Tsuyoshi Tajima, Kazuhiro Bandai, Tadaharu Ajito, Hirotaka Matsumoto","doi":"10.1111/asj.70200","DOIUrl":"10.1111/asj.70200","url":null,"abstract":"This study examined the impact of early postpartum uterine oxidative stress and antioxidant activity on subsequent reproductive performance in lactating Holstein-Friesian dairy cows. Uterine flush fluid samples were collected at 2-8 weeks postpartum (n = 77), and diacron reactive oxygen metabolites (d-ROMs), biological antioxidant capacity (BAP), and oxidation stress index (OSI: d-ROMs/BAP × 100) were calculated. Reproductive performance was classified into one of the following three patterns: Pattern 1, pregnant after first postpartum artificial insemination (AI) (n = 23) versus nonpregnant after first postpartum AI (n = 54); Pattern 2, pregnant < 120 days postpartum (n = 32) versus pregnant ≥ 120 days postpartum (n = 45); and Pattern 3, pregnant < 3 AIs (n = 45) versus pregnant or nonpregnant > 3 AIs (n = 32). There was a significant difference between the groups in d-ROMs at 5 weeks in Pattern 2 and 7 weeks in Patterns 1 and 3. There was no significant difference between the groups in BAP and OSI at any week. The results indicate that an increase in oxidative stress levels in the early postpartum period affects the reproductive performance of Holstein-Friesian dairy cows.","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"97 1","pages":"e70200"},"PeriodicalIF":1.6,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148238585","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Identification of Lying Postures Responsive to Bedding Material Replacement in Japanese Black Fattening Cattle (Bos taurus). 日本育肥黑牛对垫料更换反应的躺姿鉴定。

IF 1.6 3区农林科学

Animal Science Journal Pub Date : 2026-01-01 DOI: 10.1111/asj.70161

Shen Dan, Shin-Ichiro Ogura, Michiru Fukasawa

{"title":"Identification of Lying Postures Responsive to Bedding Material Replacement in Japanese Black Fattening Cattle (Bos taurus).","authors":"Shen Dan, Shin-Ichiro Ogura, Michiru Fukasawa","doi":"10.1111/asj.70161","DOIUrl":"10.1111/asj.70161","url":null,"abstract":"This study examined the effects of bedding material replacement, bed management practice for improving bed cleanliness, on lying behavior and lying posture in cattle. Eight Japanese Black fattening cattle (Bos taurus) were observed for 24 h before and after bedding material replacement. Lying postures were systematically classified based on head (lifted, tucked, extended) and forelimb and hindlimb positions (number of extended limbs: 0-2). The duration, frequency, and bout duration of lying behavior and each lying posture were compared between cleaned and dirty conditions using ANOVA. Under cleaned conditions, lying duration and bout duration increased but lying frequency decreased (p < 0.05, each). The duration of lying postures with the head lifted and all limbs tucked, as well as with tucked head and all limbs tucked, increased under cleaned conditions (p < 0.05, each). Duration and bout duration of the tucked limbs increased (p < 0.05, each) while duration and frequency of lying with extended hindlimbs tended to decrease (p < 0.1, each). These results suggest that cleaned bedding material promotes more compact lying postures, particularly those with limbs tucked and either lifted or tucked head positions, highlighting the potential association of these lying postures with cattle responses to bed management.","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"97 1","pages":"e70161"},"PeriodicalIF":1.6,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147442109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Proteases in Fraction in Commercial Shio-Koji on the Proteolysis of Bovine Myofibrils. 商品咸曲中蛋白酶对牛肌原纤维蛋白水解的影响。

IF 1.6 3区农林科学

Animal Science Journal Pub Date : 2026-01-01 DOI: 10.1111/asj.70188

Yuji Miyaguchi, Miho Suzuki, Kana Tohyama, Eisaku Yamamoto

{"title":"Effect of Proteases in Fraction in Commercial Shio-Koji on the Proteolysis of Bovine Myofibrils.","authors":"Yuji Miyaguchi, Miho Suzuki, Kana Tohyama, Eisaku Yamamoto","doi":"10.1111/asj.70188","DOIUrl":"10.1111/asj.70188","url":null,"abstract":"Rice koji is produced by fermenting rice with Aspergillus oryzae, and shio-koji, a seasoning derived from rice koji, is known for its meat-tenderizing properties. In this study, protease fractions were isolated from commercially available shio-koji, and their effects on the hydrolysis of bovine myofibrils and the release of free amino acids were examined. A crude protease fraction (CP-F) was obtained by dialyzing shio-koji to remove low-molecular-weight components, while an aspergillopepsin I (AP)-enriched fraction (AP-F) was prepared by ammonium sulfate precipitation. Treatment of bovine myofibrils with CP-F or AP-F resulted in a temperature-dependent increase in free peptides, demonstrating the proteolytic activity of shio-koji proteases. CP-F generated a greater amount of peptides than AP-F. SDS-PAGE analysis confirmed that both fractions promoted myofibrillar degradation. Proteolysis at 4°C was limited relative to that at 37°C, and partial hydrolysis of myosin heavy chains was observed. These findings indicate that AP in shio-koji exhibits proteolytic activity toward myofibrillar proteins and has the potential to contribute to meat tenderization.","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"97 1","pages":"e70188"},"PeriodicalIF":1.6,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147986347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Proteinogram and Immunological Profile of Colostrum and Milk From Gir (Bos indicus) Primiparous and Multiparous Cows and Their Impact on Passive Immune Transfer. 初产和多产奶牛初乳和乳汁蛋白谱、免疫特性及其对被动免疫转移的影响。

IF 1.6 3区农林科学

Animal Science Journal Pub Date : 2026-01-01 DOI: 10.1111/asj.70194

João Vitor Menezes Lopes, Maria Claudia Pereda Francischini, Beatriz de Melo Justo, Daniel de Souza Ramos Angrimani, Camila Infantosi Vannucchi

{"title":"Proteinogram and Immunological Profile of Colostrum and Milk From Gir (Bos indicus) Primiparous and Multiparous Cows and Their Impact on Passive Immune Transfer.","authors":"João Vitor Menezes Lopes, Maria Claudia Pereda Francischini, Beatriz de Melo Justo, Daniel de Souza Ramos Angrimani, Camila Infantosi Vannucchi","doi":"10.1111/asj.70194","DOIUrl":"10.1111/asj.70194","url":null,"abstract":"We aimed to evaluate the influence of parity in Dairy Gir cows on physicochemical composition, protein content, and immunoglobulin G (IgG) concentrations in colostrum and milk, as well as the efficiency of passive immunity transfer to Gir calves. Colostrum, transition milk, and mature milk were sampled from primiparous (n = 12) and multiparous (n = 16) Gir cows to determine density, total solids, pH, milk serum IgG, and the proteinogram (lactoferrin, albumin, heavy and light-chain IgG, β-lactoglobulin, and α-lactalbumin). Blood was collected from 3-day-old calves to evaluate total solids, liver panel, and IgG. Colostrum from primiparous cows had higher density and total solids than that of multiparous cows; however, calf IgG concentrations were higher in the multiparous group. Colostrum IgG and α-lactalbumin concentrations were higher in multiparous than in primiparous cows. Albumin concentration progressively decreased during the transition from colostrum to mature milk in primiparous cows, whereas the multiparous group showed a sharp decrease from transition milk to mature milk. In conclusion, multiparous Gir cows produce higher quality colostrum and have more efficient passive immune transfer, in addition to a distinct density and protein profile. Thus, the later puberty in Zebu cattle, which could influence colostrum quality and immune transfer, was not confirmed for primiparous Gir cows.","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"97 1","pages":"e70194"},"PeriodicalIF":1.6,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148013243","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pasture Intake of Whole-Day Stocked Thoroughbred Foals With Growth. 育成期全天放养纯种马驹的采食量。

IF 1.6 3区农林科学

Animal Science Journal Pub Date : 2026-01-01 DOI: 10.1111/asj.70168

Tomoki Tanabe, Akira Matsui, Masataka Tominari, Koichiro Ueda, Tomohiro Mitani, Masahito Kawai

{"title":"Pasture Intake of Whole-Day Stocked Thoroughbred Foals With Growth.","authors":"Tomoki Tanabe, Akira Matsui, Masataka Tominari, Koichiro Ueda, Tomohiro Mitani, Masahito Kawai","doi":"10.1111/asj.70168","DOIUrl":"10.1111/asj.70168","url":null,"abstract":"We investigated the changes in the forage and nutrient intake of thoroughbred foals on pastures with whole-day stocking with age. Twelve thoroughbred foals were used and were allowed to graze on a pasture for 21 h/day from June to September. All foals were weaned just before 5 months of age. The pasture intake of the foals was measured using the double-indicator method. During the suckling period, the total voluntary dry matter intake (VDMI) of the pasture for foals was higher at 4 months (2.1 kgDM/day) than at 2 months (1.3 kgDM/day). However, VDMI of pastures per body weight (%BW) for foals was not significantly different (approximately 1%BW). After weaning, the VDMI of the pasture for foals at 5 months (4.8 kgDM/day) increased more than that at 4 months old. Thoroughbred foals under whole-day stocking during the nursing period were dependent on dam's milk for approximately 60% of digestible energy (DE) requirements even at 4 months of age just before weaning. After weaning, crude protein was able to meet the requirement only with grass, whereas DE was able to reach 89% of the DE requirement from pasture and can meet this requirement with approximately 1 kg of the concentrate.","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"97 1","pages":"e70168"},"PeriodicalIF":1.6,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147760191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of Nonesterified Fatty Acids From Different Plant-Derived Oils With Silica Gel Powder on In Vitro Gas Production and Ruminal Fermentation Characteristics. 不同植物油非酯化脂肪酸与硅胶粉对体外产气量及瘤胃发酵特性的影响

IF 1.6 3区农林科学

Animal Science Journal Pub Date : 2026-01-01 DOI: 10.1111/asj.70216

Tinglin Tsai, Shinichi Irifune, Shigeru Kikuchi, Yosuke Kishi, Isamu Takahashi, Yoko Tsukahara, Kazato Oishi, Hajime Kumagai

{"title":"Effects of Nonesterified Fatty Acids From Different Plant-Derived Oils With Silica Gel Powder on In Vitro Gas Production and Ruminal Fermentation Characteristics.","authors":"Tinglin Tsai, Shinichi Irifune, Shigeru Kikuchi, Yosuke Kishi, Isamu Takahashi, Yoko Tsukahara, Kazato Oishi, Hajime Kumagai","doi":"10.1111/asj.70216","DOIUrl":"https://doi.org/10.1111/asj.70216","url":null,"abstract":"Previous studies reported that nonesterified fatty acid in calcium salts has the possibility to mitigate methane emission when combined with silica powder. We investigated the effects of different lipase-treated oils, combined with silica powder as an oil adsorbent, on in vitro gas production and ruminal fermentation characteristics employing sheep ruminal fluid. In Experiment 1, treatments included five supplemental oils: palm kernel oil (PKO), palm oil (PO), sunflower oil (SFO), soybean oil (SBO), and linseed oil (LNO), supplemented levels at 2% and 4% of dry matter (DM) for each oil. Compared to the control (rolled barley substrate), supplementation with 4% DM of PKO, SBO, and LNO showed methane mitigation (p < 0.01). In Experiment 2, PKO, SBO, and LNO were further tested in either lipase-treated (NEFA) or untreated triglyceride (TG) to demonstrate effects of lipase treatment on fermentation characteristics. Although none of the TG differed in methane production, NEFA decreased methane production at 48 h, DM and crude protein (CP) disappearance (p < 0.05). Our findings suggest that lipase-treated PKO, SBO, and LNO supplementation, when combined with silica powder, can further suppress methane production; however, it also exerts negative impacts on DM and CP disappearances.","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"97 1","pages":"e70216"},"PeriodicalIF":1.6,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148410262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Carcass Trait, Physicochemical, Microstructure, and Fatty Acid Profile of Lamb Meat Fed Different Levels of Tamanu (Calophyllum inophyllum) Kernel Cake. 饲喂不同水平柽柳仁饼羔羊肉的胴体性状、理化、显微结构和脂肪酸特征

IF 1.6 3区农林科学

Animal Science Journal Pub Date : 2026-01-01 DOI: 10.1111/asj.70227

Hasna Dyan Azkaratri, Dimas Hand Vidya Paradhipta, Endy Triyannanto, Chusnul Hanim, Ihshan Habi Ashshaadiq, Budi Leksono

{"title":"Carcass Trait, Physicochemical, Microstructure, and Fatty Acid Profile of Lamb Meat Fed Different Levels of Tamanu (Calophyllum inophyllum) Kernel Cake.","authors":"Hasna Dyan Azkaratri, Dimas Hand Vidya Paradhipta, Endy Triyannanto, Chusnul Hanim, Ihshan Habi Ashshaadiq, Budi Leksono","doi":"10.1111/asj.70227","DOIUrl":"10.1111/asj.70227","url":null,"abstract":"A potential alternative protein source for ruminants, tamanu (Calophyllum inophyllum) kernel cake (TKC), a by-product of tamanu oil extraction, is rich in protein and bioactive compounds. This study evaluated carcass characteristics, microstructure, physicochemical quality, and fatty acid (FA) profile of lamb meat fed diets containing TKC. Dietary treatments consisted of forage and concentrate with TKC at 0% (T0, control), 15% (T15), 30% (T30), and 30% with mineral premix supplementation (T30m). Twenty male thin-tailed lambs were assigned to four treatments with five replicates and fed for 3 months. Results showed that T30 produced the highest carcass percentage, whereas all TKC treatments significantly increased the percentage of Boneless Closely Trimmed Retail Cuts (%BTCRC) compared to the control. However, TKC inclusion had no significant effect on overall yield grade. Physicochemical analysis revealed lower cooking loss in T30 and T30m compared to T15 and the control, whereas T30 significantly increased intramuscular fat content. Microstructural analysis indicated greater perimysium, endomysium, and muscle fiber area in T30 and T30m. Additionally, all TKC treatments increased unsaturated fatty acids and reduced saturated fatty acids. In conclusion, a 30% TKC inclusion is recommended to enhance carcass percentage, muscle microstructure, and FA profile of lamb meat.","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"97 1","pages":"e70227"},"PeriodicalIF":1.6,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13461251/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148711029","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}

引用次数: 0

Effects of Environmental Enrichment on Leg Health and Locomotor Traits of Broiler Chickens Fed Antibiotic or Multi-Strain Probiotic Performance Enhancers. 环境富集对抗生素或多菌株益生菌性能增强剂对肉仔鸡腿健康和运动特性的影响

IF 1.6 3区农林科学

Animal Science Journal Pub Date : 2026-01-01 DOI: 10.1111/asj.70233

Lorraine Aline Barbosa de Lima, Caio Cesar Dos Ouros, Maria Eliza Ribeiro da Silva, Elivelton de Salles da Silveira, Monaline Ribeiro Aquino da Silva, Maria Fernanda de Castro Burbarelli, Fabiana Ribeiro Caldara, Claudia Marie Komiyama, Irenilza de Alencar Nääs, Rodrigo Garófallo Garcia

{"title":"Effects of Environmental Enrichment on Leg Health and Locomotor Traits of Broiler Chickens Fed Antibiotic or Multi-Strain Probiotic Performance Enhancers.","authors":"Lorraine Aline Barbosa de Lima, Caio Cesar Dos Ouros, Maria Eliza Ribeiro da Silva, Elivelton de Salles da Silveira, Monaline Ribeiro Aquino da Silva, Maria Fernanda de Castro Burbarelli, Fabiana Ribeiro Caldara, Claudia Marie Komiyama, Irenilza de Alencar Nääs, Rodrigo Garófallo Garcia","doi":"10.1111/asj.70233","DOIUrl":"10.1111/asj.70233","url":null,"abstract":"Commercial broiler production faces the challenge of optimizing animal welfare and rapid genetic gains in growth rate, with locomotor disorders and footpad lesions remaining important limiting factors. Antibiotic growth promoters and probiotics are dietary strategies for modulating gut health, whereas environmental enrichment promotes physical development. This study evaluated the effects of dietary additives and environmental enrichment on welfare indicators in broiler chickens. A total of 1440 male chicks were assigned to a completely randomized 3 × 2 factorial design (control, antibiotic, and probiotic diets, with or without environmental enrichment), with eight replicates per treatment. Environmental enrichment consisted of a plastic ramp and rotating objects (mirrors, hay, chains, and balls). Locomotor traits, including gait score, pododermatitis, angular deformities, and latency to lie, were assessed. A significant interaction between dietary additives and environmental enrichment was observed for femoral degeneration, with probiotic-fed birds under enriched conditions showing the lowest degeneration scores. Probiotics also improved gait score at 36 days, whereas both probiotics and antibiotics reduced pododermatitis severity. No effects were detected on tibial dyschondroplasia, spondylolisthesis, latency to lie, angular deformities, dorsocranial myopathy, or bone strength. The combination of probiotics and environmental enrichment positively influenced selected locomotor welfare indicators, whereas both dietary additives reduced pododermatitis without affecting major skeletal disorders.","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"97 1","pages":"e70233"},"PeriodicalIF":1.6,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13463213/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148711132","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}

引用次数: 0

The Weaning of Pigs: Mechanistic Outcomes to Intestinal Immunity and Integrity. 断奶仔猪对肠道免疫和肠道完整性的影响。

IF 1.6 3区农林科学

Animal Science Journal Pub Date : 2026-01-01 DOI: 10.1111/asj.70217

Yesid Garavito-Duarte, Alexa R Gormley, Jeonghyeon Son, Kyohei Furukawa, Atsushi Murai, Sung Woo Kim

{"title":"The Weaning of Pigs: Mechanistic Outcomes to Intestinal Immunity and Integrity.","authors":"Yesid Garavito-Duarte, Alexa R Gormley, Jeonghyeon Son, Kyohei Furukawa, Atsushi Murai, Sung Woo Kim","doi":"10.1111/asj.70217","DOIUrl":"10.1111/asj.70217","url":null,"abstract":"Weaning is a critical stage in pigs characterized by abrupt maternal separation, dietary transition, social mixing, relocation, and increased exposure to environmental and pathogenic challenges. These stressors occur during a period of physiological immaturity and collectively disrupt intestinal homeostasis. Dysbiosis alters luminal signaling and microbial metabolite profiles, contributing to activation of innate immune pathways, oxidative imbalance, increased intestinal permeability, and impaired capacity for epithelial maintenance, ultimately compromising nutrient absorption and growth performance. Despite their diverse origins, these stressors converge on shared biological pathways, including pattern-recognition receptor activation, cytokine amplification, redox imbalance, and tight junction disruption, which sustain mucosal inflammation and barrier dysfunction during the post-weaning period. This review combines the current understanding of how weaning-associated and dietary stressors, including dietary antigens, non-starch polysaccharides, enteric pathogens, and mycotoxins, affect intestinal immunity and epithelial integrity in pigs. Nutritional interventions are evaluated based on their ability to influence common epithelial-immune pathways. Functional feed additives can regulate host-microbe interactions, dampen inflammatory signaling, enhance redox homeostasis, and maintain epithelial integrity. Overall, post-weaning intestinal dysfunction should be considered a multifactorial condition driven by interconnected stress pathways, and nutritional approaches targeting these shared mechanisms may enhance intestinal function and growth performance in weaned pigs.","PeriodicalId":7890,"journal":{"name":"Animal Science Journal","volume":"97 1","pages":"e70217"},"PeriodicalIF":1.6,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13402005/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148590255","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}

引用次数: 0