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Probiotic and antibacterial properties of recombinant Lactococcus lactis expressing the fusion antimicrobial peptides BMAP18-BSN37 in mice and chickens 表达融合抗菌肽BMAP18-BSN37的重组乳酸乳球菌在小鼠和鸡体内的益生菌和抗菌性能
IF 4.2 1区 农林科学 Q1 AGRICULTURE, DAIRY & ANIMAL SCIENCE Pub Date : 2026-01-23 DOI: 10.1016/j.psj.2026.106507
Ruibiao Wang , Yukai Lin , Yu Xia , Suxian Liu , Doudou Feng , Siyang Li , Tengyue Zhou , Huarun Sun , Jiyuan Shen , Bo Wen , Minghui Li , Chengshui Liao , Baoliang Qin , Jianhe Hu , Yuanfang Ma , Ke Ding , Lei Wang
Antimicrobial resistance poses a serious threat to global food safety and poultry production, prompting the need for effective alternatives to conventional antibiotics in food-producing animals. In this study, a recombinant food-grade strain, L. lactis NZ-BB, was engineered to express a fusion antimicrobial peptide (BMAP18-BSN37), and evaluated its probiotic characteristics and antimicrobial efficacy against Salmonella, a major foodborne pathogen in chicken. The recombinant plasmid pUBB was successfully constructed and introduced into L. lactis NZ9000, with optimal peptide expression achieved following Nisin induction (20 ng/mL, 6 h). NZ-BB demonstrated stable plasmid maintenance, high expression levels, and no detectable metabolic burden. In vivo trials using BALB/c murine and 817 strain avian models showed that NZ-BB enhanced body weight gain, supported immune organ development, and improved intestinal barrier integrity through upregulation of tight junction proteins (occludin, claudin-1, ZO-1) and anti-inflammatory cytokines (TGF-β, IL-4), while reducing pro-inflammatory markers (IL-1β, TNF-α, IL-17a). Importantly, oral administration of NZ-BB significantly reduced intestinal and systemic Salmonella burdens, mitigated tissue damage, and restored immune balance in both mice and chicks. Furthermore, NZ-BB regulated the expression of innate immune receptors (e.g., NLRC3) and matrix metalloproteinases (e.g., MMP-1), highlighting its immunomodulatory potential. These results underscore the dual probiotic and antimicrobial functionality of NZ-BB and support its potential use as a food-safe microbial agent to improve animal health and reduce the risk of Salmonella contamination in the food chain.
抗菌素耐药性对全球食品安全和家禽生产构成严重威胁,促使人们需要在食用动物中寻找传统抗生素的有效替代品。本研究利用重组食品级菌株L. lactis NZ-BB表达融合抗菌肽BMAP18-BSN37,并对其益生菌特性和对鸡主要食源性病原菌沙门氏菌的抑菌效果进行了评价。成功构建了重组质粒pUBB,并将其导入L. lactis NZ9000中,Nisin诱导(20 ng/mL, 6 h)后肽表达达到最佳。NZ-BB表现出稳定的质粒维持,高表达水平,没有可检测到的代谢负担。BALB/c小鼠和817株禽模型的体内试验表明,NZ-BB通过上调紧密连接蛋白(occludin, claudin-1, ZO-1)和抗炎因子(TGF-β, IL-4),同时降低促炎标志物(IL-1β, TNF-α, IL-17a),促进体重增加,支持免疫器官发育,改善肠道屏障完整性。重要的是,口服NZ-BB可显著减少小鼠和雏鸡肠道和全身沙门氏菌负担,减轻组织损伤,恢复免疫平衡。此外,NZ-BB调节先天免疫受体(如NLRC3)和基质金属蛋白酶(如MMP-1)的表达,突出了其免疫调节潜力。这些结果强调了NZ-BB的双重益生菌和抗菌功能,并支持其作为食品安全微生物剂的潜在用途,以改善动物健康并降低食品链中沙门氏菌污染的风险。
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引用次数: 0
The antioxidant function of Piper sarmentosum Roxb. alcoholic extract in heat-stressed broilers 沙薄荷的抗氧化作用。热应激肉鸡酒精提取物的研究
IF 4.2 1区 农林科学 Q1 AGRICULTURE, DAIRY & ANIMAL SCIENCE Pub Date : 2026-01-23 DOI: 10.1016/j.psj.2026.106505
Khaled Abouelezz , Luli Zhou , Mohamed Abdelhameed Mohamed Sayed , Ahmed Khalaf Hassan , Abdelmotaleb Elokil , Ashraf Mohamed Abdelmalek , Wael A. Omar , Esmat Farouk Ali , Guanyu Hou , Dingfa Wang
This study evaluated the effects of dietary Piper sarmentosum leaf extract (PSE) on the antioxidant capacity, immunity, jejunal morphology, meat quality, and performance of broilers exposed to high ambient temperatures. A total of 240 one-day-old Cobb-500 male broilers were distributed into 20 floor pens and randomly assigned to four dietary treatments with five replicates each (12 birds/replicate). Treatment 1 (TN-control) was fed a basal diet (BD) and kept under thermoneutral conditions. Treatment 2 (HS-control) was fed the BD and exposed to cyclic heat stress (HS) from d 22 to 35. Treatments 3 and 4 were subjected to the same HS regime but were fed the BD supplemented with 100 (PSE100) or 300 (PSE300) mg PSE/kg diet from d 1 to 35. Though growth performance parameters were less affected, the HS-control, compared to the TN-control, exhibited lower IgY levels, reduced antibody titers against Newcastle disease virus (NDV), and decreased activities of catalase (CAT) and glutathione peroxidase (GPx). Heat stress also increased serum malondialdehyde (MDA) concentrations by 8 % and reduced superoxide dismutase (SOD) activity and IgM contents by 8.8 % and 17.6 %, respectively. PSE supplementation effectively reversed these impairments, restoring antioxidant enzyme (CAT, SOD, and GPx) activities and enhancing serum immunoglobulins and NDV antibody titers to levels comparable to or exceeding the TN-control. The results indicate that PSE at an inclusion level of 100 mg/kg serves as an effective natural feed supplement for enhancing antioxidant capacity and immune function in heat-stressed broilers.
本研究旨在评价饲粮中添加胡椒叶提取物(PSE)对高温环境下肉鸡抗氧化能力、免疫力、空肠形态、肉品质和生产性能的影响。试验选用240只1日龄科布-500雄性肉仔鸡,随机分为4组饲粮处理,每组5个重复(12只/重复)。处理1 (TN-control)饲喂基础饲粮(BD),保持热中性。处理2 (HS-control)于第22 ~ 35天饲喂BD,并进行循环热应激(HS)处理。处理3和处理4采用相同的HS方案,但在第1 ~ 35天分别饲喂在BD基础上添加100 (PSE100)或300 (PSE300) mg PSE/kg日粮的试验饲料。虽然对生长性能参数的影响较小,但与tn对照相比,hs对照的IgY水平较低,抗新城疫病毒(NDV)抗体滴度降低,过氧化氢酶(CAT)和谷胱甘肽过氧化物酶(GPx)活性降低。热应激使血清丙二醛(MDA)浓度升高8%,超氧化物歧化酶(SOD)活性和IgM含量分别降低8.8%和17.6%。补充PSE有效地逆转了这些损伤,恢复了抗氧化酶(CAT、SOD和GPx)的活性,并将血清免疫球蛋白和NDV抗体滴度提高到与tn对照组相当或超过tn对照组的水平。由此可见,添加100 mg/kg PSE可有效提高热应激肉鸡的抗氧化能力和免疫功能。
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引用次数: 0
Brefeldin A inhibits duck plague virus replication by impairing virion envelopment Brefeldin A通过破坏病毒包膜抑制鸭瘟病毒复制
IF 4.2 1区 农林科学 Q1 AGRICULTURE, DAIRY & ANIMAL SCIENCE Pub Date : 2026-01-23 DOI: 10.1016/j.psj.2026.106509
Xuetong Wang , Bin Tian , Zaihui Liu , Dongjie Cai , Yanming Tian , Mingshu Wang , Ying Wu , Qiao Yang , Shaqiu Zhang , Dekang Zhu , Mafeng Liu , Xinxin Zhao , Di Sun , Juan Huang , Xumin Ou , Zhen Wu , Yu He , Renyong Jia , Shun Chen , Anchun Cheng
Duck plague virus (DPV) is the causative agent of duck plague (DP), an acute and highly fatal disease that inflicts substantial economic losses in the waterfowl industry. The virus acquires its envelope from the endoplasmic reticulum (ER) and Golgi apparatus during virion assembly. Currently, there are no specific antiviral drugs available, making the development of novel anti-DPV drugs critically important. Brefeldin A (BFA) is an antibiotic known to disrupt endoplasmic reticulum-Golgi transport and inhibit the replication of various enveloped viruses. However, its inhibitory effect and mechanism on DPV infection remain unclear. Our study demonstrates that BFA effectively inhibits DPV replication in duck embryo fibroblast (DEF) cells in a concentration-dependent manner. Time-addition and antiviral duration analysis revealed that BFA mainly exerts therapeutic inhibitory effects after viral infection, and its effect is most significant within 48 hours after infection. Further investigation indicated that BFA does not affect the classical stages of the DPV life cycle, including viral adsorption, endocytosis, genome replication, or release. Instead, it significantly suppresses direct cell-to-cell spread. Mechanistic studies showed that BFA disrupts the normal subcellular localization and punctate distribution of the viral tegument protein UL51 and the envelope glycoprotein gC (encoded by UL44), causing their dispersion throughout the cytoplasm. Transmission electron microscopy (TEM) further confirmed that BFA leads to the accumulation of numerous DPV nucleocapsids in the nucleus, with unenveloped viral particles observed at the nuclear membrane. Meanwhile, the number of mature, enveloped virions in the cytoplasm was markedly reduced. In conclusion, BFA can significantly inhibit the replication of DPV in DEF cells and is a potent antiviral drug targeting DPV.
鸭瘟病毒(DPV)是鸭瘟(DP)的病原体,鸭瘟是一种急性和高度致命的疾病,给水禽产业造成了巨大的经济损失。病毒在病毒粒子组装过程中从内质网(ER)和高尔基体获得包膜。目前,还没有特异性抗病毒药物可用,因此开发新型抗dpv药物至关重要。Brefeldin A (BFA)是一种已知的抗生素,可破坏内质网-高尔基转运并抑制各种包膜病毒的复制。然而,其对DPV感染的抑制作用和机制尚不清楚。我们的研究表明,BFA有效地抑制DPV在鸭胚成纤维细胞(DEF)中的复制,并呈浓度依赖性。时间相加和抗病毒持续时间分析显示,BFA主要在病毒感染后发挥治疗抑制作用,且在感染后48 h内效果最为显著。进一步的研究表明,BFA不影响DPV生命周期的经典阶段,包括病毒吸附、内吞作用、基因组复制或释放。相反,它能显著抑制细胞间的直接扩散。机制研究表明,BFA破坏了病毒被膜蛋白UL51和包膜糖蛋白gC (UL44编码)的正常亚细胞定位和点状分布,导致它们在细胞质中分散。透射电镜(TEM)进一步证实,BFA导致大量DPV核衣壳在细胞核内积聚,在核膜处观察到未包膜的病毒颗粒。同时,细胞质中成熟包膜病毒粒子的数量明显减少。综上所述,BFA能显著抑制DPV在DEF细胞中的复制,是一种有效的靶向DPV的抗病毒药物。
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引用次数: 0
Productive and morphological responses of japanese quails (Coturnix japonica) supplemented with phytase superdosing at different temperatures 不同温度下添加过量植酸酶对日本鹌鹑生产和形态的影响
IF 4.2 1区 农林科学 Q1 AGRICULTURE, DAIRY & ANIMAL SCIENCE Pub Date : 2026-01-23 DOI: 10.1016/j.psj.2026.106508
Raiane dos Santos Silva , Apolônio Gomes Ribeiro , Adiel Vieira de Lima , Paloma Eduarda Lopes de Souza , Edijanio Galdino da Silva , Isabelle Naemi Kaneko , Cleber Franklin Santos de Oliveira , Carlos Henrique do Nascimento , Dayane Albuquerque da Silva , Fernando Guilherme Perazzo da Costa , Edilson Paes Saraiva , Lucas Rannier Ribeiro Antonino Carvalho , Ricardo Romão Guerra
This study aimed to evaluate the effects of phytase superdosing in the diet of Japanese quails subjected to different thermal conditions on productive performance, egg characteristics, intestinal morphometry, and physiological parameters. The experiment was conducted in a completely randomized design in a 5 × 3 factorial arrangement, consisting of five phytase levels (0, 500, 1000, 1500, and 3000 FTU/kg) and three temperatures (24, 30, and 36°C), with six replicates of eight birds each. The performance variables evaluated included feed intake, egg production, egg weight, egg mass, feed conversion per egg mass, and feed conversion per dozen eggs. Egg quality was assessed by yolk color, shell thickness, specific gravity, Haugh units, and proportions of yolk, albumen, and shell. Spleen, liver, heart, and abdominal fat weights were also measured, along with duodenum and jejunum morphometry. Data were subjected to analysis of variance, Tukey’s test, and regression analysis. Birds kept at 36°C showed lower feed intake compared with those maintained at 24 and 30°C (P < 0.001), with no significant effect of phytase on performance. Supplementation with 1500 FTU increased eggshell thickness at 36°C (P < 0.001). A temperature × phytase interaction was observed for liver weight (p = 0.010), whereas heart weight was higher at 24°C compared with 36°C (P = 0.005). The effects of phytase on duodenal morphometry were temperature-dependent, with the greatest absorptive area observed with 3000 FTU at 30°C (P < 0.001). The temperature of 24°C resulted in the best morphological parameters and the lowest hepatic glycogen index. It is concluded that although quails tolerate temperatures of 36°C, the best productive responses occur at 30°C. Therefore, the use of 1000 to 1500 FTU is recommended, as these levels provided benefits to intestinal morphometry and egg quality.
本试验旨在评价在不同热条件下日粮中添加过量植酸酶对日本鹌鹑生产性能、蛋特性、肠道形态和生理参数的影响。试验采用5 × 3因子全随机设计,设5个植酸酶水平(0、500、1000、1500和3000 FTU/kg)和3个温度(24、30和36℃),6个重复,每个重复8只鸡。评估的性能变量包括采食量、产蛋量、蛋重、蛋质量、每蛋质量的饲料系数和每打蛋的饲料系数。通过蛋黄颜色、蛋壳厚度、比重、哈夫单位以及蛋黄、蛋白和蛋壳的比例来评估鸡蛋品质。同时测量脾脏、肝脏、心脏和腹部脂肪重量,以及十二指肠和空肠形态。数据进行方差分析、Tukey检验和回归分析。与24°C和30°C相比,36°C饲养的鸡采食量较低(P < 0.001),植酸酶对生产性能无显著影响。在36°C时,添加1500 FTU增加了蛋壳厚度(P < 0.001)。温度与植酸酶之间存在相互作用(p = 0.010),而心脏重量在24°C时高于36°C (p = 0.005)。植酸酶对十二指肠形态的影响与温度有关,在30°C条件下,3000 FTU的吸收面积最大(P < 0.001)。温度为24℃时,形态参数最佳,肝糖原指数最低。由此得出结论,尽管鹌鹑耐受36℃的温度,但最佳的生产反应发生在30℃。因此,建议使用1000至1500 FTU,因为这个水平对肠道形态测定和鸡蛋质量有益。
{"title":"Productive and morphological responses of japanese quails (Coturnix japonica) supplemented with phytase superdosing at different temperatures","authors":"Raiane dos Santos Silva ,&nbsp;Apolônio Gomes Ribeiro ,&nbsp;Adiel Vieira de Lima ,&nbsp;Paloma Eduarda Lopes de Souza ,&nbsp;Edijanio Galdino da Silva ,&nbsp;Isabelle Naemi Kaneko ,&nbsp;Cleber Franklin Santos de Oliveira ,&nbsp;Carlos Henrique do Nascimento ,&nbsp;Dayane Albuquerque da Silva ,&nbsp;Fernando Guilherme Perazzo da Costa ,&nbsp;Edilson Paes Saraiva ,&nbsp;Lucas Rannier Ribeiro Antonino Carvalho ,&nbsp;Ricardo Romão Guerra","doi":"10.1016/j.psj.2026.106508","DOIUrl":"10.1016/j.psj.2026.106508","url":null,"abstract":"<div><div>This study aimed to evaluate the effects of phytase superdosing in the diet of Japanese quails subjected to different thermal conditions on productive performance, egg characteristics, intestinal morphometry, and physiological parameters. The experiment was conducted in a completely randomized design in a 5 × 3 factorial arrangement, consisting of five phytase levels (0, 500, 1000, 1500, and 3000 FTU/kg) and three temperatures (24, 30, and 36°C), with six replicates of eight birds each. The performance variables evaluated included feed intake, egg production, egg weight, egg mass, feed conversion per egg mass, and feed conversion per dozen eggs. Egg quality was assessed by yolk color, shell thickness, specific gravity, Haugh units, and proportions of yolk, albumen, and shell. Spleen, liver, heart, and abdominal fat weights were also measured, along with duodenum and jejunum morphometry. Data were subjected to analysis of variance, Tukey’s test, and regression analysis. Birds kept at 36°C showed lower feed intake compared with those maintained at 24 and 30°C (<em>P</em> &lt; 0.001), with no significant effect of phytase on performance. Supplementation with 1500 FTU increased eggshell thickness at 36°C (<em>P</em> &lt; 0.001). A temperature × phytase interaction was observed for liver weight (<em>p</em> = 0.010), whereas heart weight was higher at 24°C compared with 36°C (<em>P</em> = 0.005). The effects of phytase on duodenal morphometry were temperature-dependent, with the greatest absorptive area observed with 3000 FTU at 30°C (<em>P</em> &lt; 0.001). The temperature of 24°C resulted in the best morphological parameters and the lowest hepatic glycogen index. It is concluded that although quails tolerate temperatures of 36°C, the best productive responses occur at 30°C. Therefore, the use of 1000 to 1500 FTU is recommended, as these levels provided benefits to intestinal morphometry and egg quality.</div></div>","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":"105 4","pages":"Article 106508"},"PeriodicalIF":4.2,"publicationDate":"2026-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146080439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Curcumin- and capsaicin-loaded nanoemulsions improve oxidative stress, intestinal morphology, and feed efficiency in slow-growing Korat chickens under high stocking density 姜黄素和辣椒素纳米乳剂可改善高放养密度下生长缓慢的Korat鸡的氧化应激、肠道形态和饲料效率
IF 4.2 1区 农林科学 Q1 AGRICULTURE, DAIRY & ANIMAL SCIENCE Pub Date : 2026-01-23 DOI: 10.1016/j.psj.2026.106513
Wichuta Khosinklang , Pramin Kaewsatuan , Piyaradtana Homyok , Mutyarsih Oryza , Nitipol Chainet , Teerapong Yata , Naiyaphat Nittayasut , Pakpoom Boonchuen , Amonrat Molee , Tom E. Porter , Wittawat Molee
This study investigated the effects of curcumin (CUR)- and capsaicin (CAP)- loaded nanoemulsion on blood biochemical changes, oxidative status, jejunal morphology, inflammatory parameters, and performance of slow-growing Korat chickens (KRC) raised under high stocking density (HSD). A total of 480 male KRC (21 d of age) were allocated into four groups: (1) HSD without supplementation, (2) normal stocking density (NSD) without supplementation, (3) HSD supplemented with CUR and CAP in powdered form (P-CUR+CAP), and (4) HSD supplemented with CUR- and CAP-loaded nanoemulsions (NE-CUR+CAP). Chickens receiving NE-CUR+CAP showed no adverse changes in liver or kidney function compared with other groups. The heterophil-to-lymphocyte ratio was reduced in NE-CUR+CAP group relative to HSD group and was comparable with NSD and P-CUR+CAP groups (P < 0.05). NE-CUR+CAP also lowered levels of TBA in the liver and jejunum while enhancing hepatic superoxide dismutase activity compared with HSD group (P < 0.05). Villus height, villus height-to-crypt depth ratio, anti-inflammatory response, and cecal Lactobacillus counts were improved, whereas crypt depth and cecal Escherichia coli were reduced in the NE-CUR+CAP group (P < 0.05). Although feed intake, BW, and body weight gain were not affected, the feed conversion ratio was significantly lower in NE-CUR+CAP compared with HSD group (P < 0.05). In conclusion, NE-CUR+CAP mitigated oxidative stress and inflammation, improved intestinal health, and enhanced feed efficiency in slow-growing chickens raised under HSD.
本研究研究了姜黄素(CUR)和辣椒素(CAP)纳米乳对高放养条件下慢生长Korat鸡(KRC)血液生化变化、氧化状态、空肠形态、炎症参数和生产性能的影响。将480只21日龄雄性KRC分为4组:(1)不添加HSD组,(2)不添加正常放养密度(NSD)组,(3)添加CUR和CAP粉末状的HSD组(P-CUR+CAP),(4)添加CUR和CAP负载纳米乳剂组(NE-CUR+CAP)。与其他组相比,NE-CUR+CAP对鸡的肝肾功能没有不良影响。NE-CUR+CAP组与HSD组相比,异细胞/淋巴细胞比值降低,与NSD和P- cur +CAP组相当(P < 0.05)。与HSD组相比,NE-CUR+CAP可降低肝脏和空肠TBA水平,提高肝脏超氧化物歧化酶活性(P < 0.05)。NE-CUR+CAP组绒毛高度、绒毛高度/隐窝深度比、抗炎反应和盲肠乳酸菌计数均有所提高,而隐窝深度和盲肠大肠杆菌数量则有所减少(P < 0.05)。NE-CUR+CAP对采食量、体重和增重无影响,但饲料系数显著低于HSD组(P < 0.05)。综上所述,NE-CUR+CAP可减轻HSD饲养的慢生长鸡的氧化应激和炎症,改善肠道健康,提高饲料效率。
{"title":"Curcumin- and capsaicin-loaded nanoemulsions improve oxidative stress, intestinal morphology, and feed efficiency in slow-growing Korat chickens under high stocking density","authors":"Wichuta Khosinklang ,&nbsp;Pramin Kaewsatuan ,&nbsp;Piyaradtana Homyok ,&nbsp;Mutyarsih Oryza ,&nbsp;Nitipol Chainet ,&nbsp;Teerapong Yata ,&nbsp;Naiyaphat Nittayasut ,&nbsp;Pakpoom Boonchuen ,&nbsp;Amonrat Molee ,&nbsp;Tom E. Porter ,&nbsp;Wittawat Molee","doi":"10.1016/j.psj.2026.106513","DOIUrl":"10.1016/j.psj.2026.106513","url":null,"abstract":"<div><div>This study investigated the effects of curcumin (<strong>CUR</strong>)- and capsaicin (<strong>CAP</strong>)- loaded nanoemulsion on blood biochemical changes, oxidative status, jejunal morphology, inflammatory parameters, and performance of slow-growing Korat chickens (<strong>KRC</strong>) raised under high stocking density (<strong>HSD</strong>). A total of 480 male KRC (21 d of age) were allocated into four groups: (1) HSD without supplementation, (2) normal stocking density (<strong>NSD</strong>) without supplementation, (3) HSD supplemented with CUR and CAP in powdered form (<strong>P-CUR+CAP</strong>), and (4) HSD supplemented with CUR- and CAP-loaded nanoemulsions (<strong>NE-CUR+CAP</strong>). Chickens receiving NE-CUR+CAP showed no adverse changes in liver or kidney function compared with other groups. The heterophil-to-lymphocyte ratio was reduced in NE-CUR+CAP group relative to HSD group and was comparable with NSD and P-CUR+CAP groups (P &lt; 0.05). NE-CUR+CAP also lowered levels of TBA in the liver and jejunum while enhancing hepatic superoxide dismutase activity compared with HSD group (P &lt; 0.05). Villus height, villus height-to-crypt depth ratio, anti-inflammatory response, and cecal <em>Lactobacillus</em> counts were improved, whereas crypt depth and cecal <em>Escherichia coli</em> were reduced in the NE-CUR+CAP group (P &lt; 0.05). Although feed intake, BW, and body weight gain were not affected, the feed conversion ratio was significantly lower in NE-CUR+CAP compared with HSD group (P &lt; 0.05). In conclusion, NE-CUR+CAP mitigated oxidative stress and inflammation, improved intestinal health, and enhanced feed efficiency in slow-growing chickens raised under HSD.</div></div>","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":"105 4","pages":"Article 106513"},"PeriodicalIF":4.2,"publicationDate":"2026-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146080530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Integrated genomics and metabolomics analysis revealed the metabolic mechanisms by which genetic variations affect the growth performance of local chickens 综合基因组学和代谢组学分析揭示了遗传变异影响地方鸡生长性能的代谢机制
IF 4.2 1区 农林科学 Q1 AGRICULTURE, DAIRY & ANIMAL SCIENCE Pub Date : 2026-01-23 DOI: 10.1016/j.psj.2026.106495
Xiaoling Yang , Xiaoxia Long , Yongxian Yang , Liqi Wang , Zhong Wang
Although many studies have examined the relationship between host genetics and serum metabolites, it is still unclear to what extent host genetic variation contributes to growth-related serum metabolic patterns in chickens. To address this issue, we performed whole-genome resequencing, transcriptome sequencing, and untargeted metabolomics analyses on blood samples collected from a population of Chinese local chickens. The results showed that single-nucleotide polymorphisms (SNPs) significantly associated with growth performance were predominantly mapped the genomic regions of SEC22C, ABCD3, SRGAP2, and CDC42BPA. SEC22C, ABCD3, and SRGAP2 were significantly associated with both body weight (BW) and average daily gain (ADG), whereas CDC42BPA was significantly associated only with ADG. Comparative analysis of blood transcriptomes between high and low BW recombinant chickens revealed that SEC22C was more strongly associated with the low BW group, while CDC42BPA exhibited significantly higher expression levels in high-weight chickens. Five metabolites, including 1-myristoyl-sn-glycerol-3-phosphate choline, were significantly associated with 45 genes, including SRGAP2, PA2G4, TENM3, MAP2K6, and ADIPOR2. Furthermore, SRGAP2 may regulate the growth of the chickens through 1-myristoyl-sn-glycerol-3-phosphate choline. This study comprehensively elucidates the combined effects of host genetics and serum metabolites on growth traits, providing a robust scientific basis for studying the growth performance of local chickens.
尽管许多研究已经研究了宿主遗传与血清代谢物之间的关系,但宿主遗传变异对鸡生长相关血清代谢模式的影响程度仍不清楚。为了解决这个问题,我们对中国地方鸡的血液样本进行了全基因组重测序、转录组测序和非靶向代谢组学分析。结果表明,与生长性能显著相关的单核苷酸多态性(snp)主要定位在SEC22C、ABCD3、SRGAP2和CDC42BPA基因组区域。SEC22C、ABCD3和SRGAP2与体重(BW)和平均日增重(ADG)均显著相关,而CDC42BPA仅与ADG显著相关。高、低体重重组鸡的血液转录组对比分析显示,低体重组的SEC22C表达量更强,而高体重组的CDC42BPA表达量显著高于低体重组。5种代谢物,包括1-肉豆蔻酰基- asn -甘油-3-磷酸胆碱,与SRGAP2、PA2G4、TENM3、MAP2K6和ADIPOR2等45个基因显著相关。SRGAP2可能通过1-肉豆蔻酰基-sn-甘油-3-磷酸胆碱调节鸡的生长。本研究全面阐明了宿主遗传和血清代谢物对生长性状的综合影响,为研究地方鸡的生长性能提供了有力的科学依据。
{"title":"Integrated genomics and metabolomics analysis revealed the metabolic mechanisms by which genetic variations affect the growth performance of local chickens","authors":"Xiaoling Yang ,&nbsp;Xiaoxia Long ,&nbsp;Yongxian Yang ,&nbsp;Liqi Wang ,&nbsp;Zhong Wang","doi":"10.1016/j.psj.2026.106495","DOIUrl":"10.1016/j.psj.2026.106495","url":null,"abstract":"<div><div>Although many studies have examined the relationship between host genetics and serum metabolites, it is still unclear to what extent host genetic variation contributes to growth-related serum metabolic patterns in chickens. To address this issue, we performed whole-genome resequencing, transcriptome sequencing, and untargeted metabolomics analyses on blood samples collected from a population of Chinese local chickens. The results showed that single-nucleotide polymorphisms (<strong>SNPs</strong>) significantly associated with growth performance were predominantly mapped the genomic regions of <em>SEC22C, ABCD3, SRGAP2</em>, and <em>CDC42BPA. SEC22C, ABCD3</em>, and <em>SRGAP2</em> were significantly associated with both body weight (<strong>BW</strong>) and average daily gain (<strong>ADG</strong>), whereas <em>CDC42BPA</em> was significantly associated only with ADG. Comparative analysis of blood transcriptomes between high and low BW recombinant chickens revealed that <em>SEC22C</em> was more strongly associated with the low BW group, while <em>CDC42BPA</em> exhibited significantly higher expression levels in high-weight chickens. Five metabolites, including 1-myristoyl-sn-glycerol-3-phosphate choline, were significantly associated with 45 genes, including <em>SRGAP2, PA2G4, TENM3, MAP2K6</em>, and <em>ADIPOR2</em>. Furthermore, <em>SRGAP2</em> may regulate the growth of the chickens through 1-myristoyl-sn-glycerol-3-phosphate choline. This study comprehensively elucidates the combined effects of host genetics and serum metabolites on growth traits, providing a robust scientific basis for studying the growth performance of local chickens.</div></div>","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":"105 4","pages":"Article 106495"},"PeriodicalIF":4.2,"publicationDate":"2026-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146080502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Population genomic analysis of Weining chicken via dd-RAD sequencing: Unraveling diversity, structure, and selective sweeps
IF 4.2 1区 农林科学 Q1 AGRICULTURE, DAIRY & ANIMAL SCIENCE Pub Date : 2026-01-23 DOI: 10.1016/j.psj.2026.106499
Zhaobi Ai , Zhonglong Zhao , Xiben Zhang , Runqian Yang , Yong Zhang , Zelin Chen , Weibo Li , Yixing Ou , Lanying Lei , Hongying Ye
To characterize the genetic diversity and evolutionary patterns of four Weining chicken strains from Guizhou Province, China, we generated genome-wide single nucleotide polymorphisms (SNPs) using dd-RAD sequencing. We found that Weining chicken exhibited moderate genetic diversity, with observed heterozygosity (Ho = 0.267) lower than expected heterozygosity (He = 0.312) and a positive inbreeding coefficient (FIS ≈ 0.14), indicating some degree of inbreeding across the population. Among strains, HM showed the highest diversity while HT had the lowest. Analyses of population structure, phylogeny, principal component analysis, and admixture consistently revealed weak genetic differentiation (FST < 0.06) and frequent gene flow among strains. Kinship analysis demonstrated mostly low pairwise relatedness, with a minority of individuals exhibiting closer kinship. Selection signature scans identified multiple candidate regions; genes within these regions were significantly enriched for biological processes and pathways related to immune response (e.g., IL-17 signaling) and metabolic regulation (e.g., MAPK signaling), which were consistently highlighted in both GO and KEGG enrichment analyses. These results demonstrate that Weining chicken has moderate genetic diversity, low population differentiation, and evidence of inbreeding and gene flow, with candidate selection signals in immune and metabolic pathways (e.g., IL-17 and MAPK signaling), providing a quantitative basis for conservation and breeding programs.
结果表明,威宁鸡具有中等程度的遗传多样性,观察到的杂合度(Ho = 0.267)低于预期的杂合度(He = 0.312),近交系数(FIS≈0.14)为正,表明种群间存在一定程度的近交。菌株中HM的多样性最高,HT的多样性最低。群体结构分析、系统发育分析、主成分分析和混合分析均显示出较弱的遗传分化(FST < 0.06)和菌株间频繁的基因流动。亲属关系分析显示,大多数人的配对关系较低,少数人表现出更密切的亲属关系。选择签名扫描识别多个候选区域;这些区域内的基因在与免疫反应(如IL-17信号传导)和代谢调节(如MAPK信号传导)相关的生物过程和途径中显著富集,这在GO和KEGG富集分析中都得到了一致的强调。上述结果表明,威宁鸡遗传多样性中等,群体分化程度低,存在近亲繁殖和基因流动,在免疫和代谢途径(如IL-17和MAPK信号)中存在候选选择信号,为保护和育种提供了定量依据。
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引用次数: 0
Gelsemium elegans extract powder alleviates high stocking density-related adverse effects in broilers via immune-intestinal microbiota synergistic mechanisms 线虫提取物粉通过免疫-肠道菌群协同机制缓解高放养密度对肉仔鸡的不良反应
IF 4.2 1区 农林科学 Q1 AGRICULTURE, DAIRY & ANIMAL SCIENCE Pub Date : 2026-01-23 DOI: 10.1016/j.psj.2026.106511
Xiao-qing Xu , Yi-rong Wang , Dan-dan Guo , Yu-qing Zhou , Jiang-yu Long , Zhao-Ying Liu
This study aimed to investigate the effects of different doses of Gelsemium elegans extract powder (GEE) on broilers under high stocking density (HSD). A total of 78 one-day-old male yellow-feathered broilers were randomly assigned to 5 treatment groups: normal stocking density (NSD), HSD, HSD + 0.06% GEE, HSD + 0.12% GEE, and HSD + 0.6% GEE. The results showed that HSD impaired broiler growth and physiological functions. Dietary supplementation with 0.06% GEE (200 mg/kg diet Gelsemium elegans extract) significantly improved growth performance (marked increases in body weight, average daily feed intake, and average daily gain), reversed immune organ inhibition (evidenced by significantly increased weight and index of the spleen and bursa of Fabricius), reduced serum corticosterone levels, repaired intestinal structural damage, and corrected intestinal flora imbalance (with a decreased Firmicutes/Bacteroidetes ratio) (P < 0.05). However, medium and high doses of GEE (0.12% and 0.6%, 400 and 2000 mg/kg diet Gelsemium elegans extract) inhibited broiler growth by inducing abnormal expression of myostatin. Therefore, 0.06% GEE (200 mg/kg diet Gelsemium elegans extract) was identified as an effective and safe dose under the current experimental conditions. In conclusion, dietary supplementation with 0.06% GEE (200 mg/kg diet Gelsemium elegans extract) can effectively improve broiler growth performance and physiological functions under HSD, and its mechanism involves reducing serum corticosterone levels, enhancing immune function, repairing intestinal morphological damage, and correcting intestinal flora imbalance.
本试验旨在研究不同剂量秀丽隐杆线虫提取物粉(GEE)对高密度饲养条件下肉仔鸡的影响。试验选用1日龄雄性黄羽肉仔鸡78只,随机分为5个处理组:正常饲养密度组(NSD)、高密度组(HSD)、高密度组(HSD + 0.06% GEE)、高密度组(HSD + 0.12% GEE)和高密度组(HSD + 0.6% GEE)。结果表明,HSD对肉鸡生长和生理功能有一定的影响。饲粮中添加0.06% GEE (200 mg/kg)显著提高了生长性能(显著提高了体重、平均日采食量和平均日增重),逆转了免疫器官抑制(显著提高了脾脏和法氏囊的体重和指数),降低了血清皮质酮水平,修复了肠道结构损伤。纠正肠道菌群失衡(厚壁菌门/拟杆菌门比例降低)(P < 0.05)。而中、高剂量GEE(0.12%和0.6%,400和2000 mg/kg)通过诱导肌肉生长抑制素的异常表达抑制肉鸡生长。因此,在本试验条件下,0.06% GEE (200 mg/kg日粮秀丽隐杆菌提取物)为有效安全剂量。综上所述,饲粮中添加0.06% GEE (200 mg/kg)可有效改善HSD条件下肉鸡的生长性能和生理功能,其机制可能涉及降低血清皮质酮水平、增强免疫功能、修复肠道形态损伤、纠正肠道菌群失衡等。
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引用次数: 0
Regulation of skeletal muscle development and metabolism in broiler chickens by Urolithin A through threonine kinase 1 pathway activation 尿素A通过激活苏氨酸激酶1通路调控肉鸡骨骼肌发育和代谢
IF 4.2 1区 农林科学 Q1 AGRICULTURE, DAIRY & ANIMAL SCIENCE Pub Date : 2026-01-23 DOI: 10.1016/j.psj.2026.106502
Liuting Wu , Leilei Peng , Xiaoling Zhao
Broiler skeletal muscle dysplasia is characterized by impaired muscle fiber hypertrophy and satellite cell dysfunction, leading to reduced meat yield and increased feed conversion rates, resulting in significant economic losses. With the impending global ban on β-adrenergic agonists, developing effective natural alternative treatments is an urgent requirement. Urolithin A (UA), a tannic acid metabolite derived from the gut microbiota, promotes muscle synthetic metabolism in mammals; however, its underlying mechanism in poultry remains unclear. We integrated network pharmacology, molecular docking, molecular dynamics simulations, and primary chicken skeletal muscle satellite cell (SMSC) culture experiments. A network pharmacology analysis identified threonine kinase1 (Akt1) as a key core target regulated by UA in muscle dysplasia. Further, KEGG enrichment analysis revealed differential clustering in the phosphatidylinositol-3-kinase (PI3K)–Akt1, forkhead box protein O1, and mechanistic target of rapamycin complex 1 signaling pathways. Molecular docking revealed that UA stably binds to the Akt1 protein (Binding energy: -7.7 kcal/mol), stabilized by hydrophobic interactions with Val164 and Met281. The key binding site for UA exhibits high conservation (96% homology) between mammalian and avian species. The 100 ns molecular dynamics simulation confirmed the stability of the complex. These findings indicate that the Akt1 pathway is closely associated with the protective role of uric acid in broiler muscle dysplasia. Primary skeletal muscle satellite cell experiments demonstrated that during SMSC proliferation, 50 μM UA upregulates mRNA levels of Akt1, mTORC1, and forkhead box O1, while enhancing the expression of myogenic differentiation 1 and myogenin during both proliferation and differentiation (P < 0.05). In addition, Akt1 and phosphorylated Akt1 protein levels upregulated (P < 0.05), confirming pathway activation. 50 μM UA regulates glucose metabolism by upregulating (P < 0.05) and downregulating (P < 0.05) pyruvate dehydrogenase kinase 4 (proliferation/differentiation) mRNA levels and fructose-6-phosphate kinase/fructose-2,6-bisphosphatase 3 (differentiation) mRNA levels, respectively, thereby optimizing glycolysis-oxidation balance. Our research shows that UA influences skeletal muscle satellite cells proliferation and differentiation through the Akt1 pathway and alters glucose metabolism at different stages. As a natural, residue-free compound, it holds promise for enhancing skeletal muscle growth in broilers, supporting the shift towards antibiotic-free poultry. Further animal studies are needed to confirm these in vitro results.
肉鸡骨骼肌发育不良的特点是肌纤维受损肥大和卫星细胞功能障碍,导致肉产量下降和饲料转化率升高,造成重大经济损失。随着β-肾上腺素能激动剂的全球禁用,开发有效的天然替代疗法是迫切需要的。尿素A (UA)是一种源自肠道微生物群的单宁酸代谢物,可促进哺乳动物肌肉合成代谢;然而,其在家禽中的潜在机制尚不清楚。我们将网络药理学、分子对接、分子动力学模拟和原代鸡骨骼肌卫星细胞(SMSC)培养实验相结合。网络药理学分析发现苏氨酸激酶(Akt1)是UA在肌肉发育不良中调节的关键核心靶点。此外,KEGG富集分析显示,磷脂酰肌醇-3激酶(PI3K) -Akt1、叉头盒蛋白O1和雷帕霉素复合物1信号通路的机制靶点存在差异聚类。分子对接表明,UA与Akt1蛋白稳定结合(结合能:-7.7 kcal/mol),通过与Val164和Met281的疏水相互作用稳定。UA的关键结合位点在哺乳动物和鸟类之间具有高度的保守性(96%的同源性)。100 ns分子动力学模拟证实了配合物的稳定性。这些结果表明,Akt1通路与尿酸在肉鸡肌肉发育不良中的保护作用密切相关。原代骨骼肌卫星细胞实验表明,在SMSC增殖过程中,50 μM UA上调Akt1、mTORC1和forkhead box O1 mRNA水平,同时在增殖和分化过程中增强myogenic differentiation 1和myogenin的表达(P < 0.05)。此外,Akt1和磷酸化的Akt1蛋白水平上调(P < 0.05),证实了途径激活。50 μM UA通过上调(P < 0.05)和下调(P < 0.05)丙酮酸脱氢酶激酶4(增殖/分化)mRNA水平和果糖-6-磷酸激酶/果糖-2,6-二磷酸酶3(分化)mRNA水平调节糖代谢,从而优化糖酵解-氧化平衡。我们的研究表明,UA通过Akt1途径影响骨骼肌卫星细胞的增殖和分化,并改变不同阶段的葡萄糖代谢。作为一种天然的无残留化合物,它有望促进肉鸡骨骼肌的生长,支持向无抗生素家禽的转变。需要进一步的动物研究来证实这些体外结果。
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引用次数: 0
Bifidobacterium supplementation ameliorates LPS-induced immune stress and intestinal barrier dysfunction in goslings 补充双歧杆菌可改善lps诱导的雏鹅免疫应激和肠道屏障功能障碍
IF 4.2 1区 农林科学 Q1 AGRICULTURE, DAIRY & ANIMAL SCIENCE Pub Date : 2026-01-23 DOI: 10.1016/j.psj.2026.106512
Cihang Zhang , Usman Nazir , Shi Chen , Zhi Yang , Zhiyue Wang , Haiming Yang
Lipopolysaccharide (LPS)-induced intestinal inflammation is a major challenge to intensive poultry production, affecting growth and overall health. It necessitates effective dietary strategies to enhance gut resilience and immune functionality. This study evaluated the effect of dietary Bifidobacterium supplementation on growth performance, intestinal health and immune responses in LPS-stressed goslings. A total of 288 one-day-old male Jiangnan white goslings (15–28 days) were allocated to six groups in a 2 × 3 factorial design, with Bifidobacterium doses as (0, 300, 600 mg/kg) with or without LPS challenge (0.5 mg/kg BW via intraperitoneal injection). Key findings revealed that LPS stress significantly reduced the growth performance by reducing average daily feed intake (ADFI) and average daily gain (ADG) (P < 0.01) while enhancing the feed conversion ratio (FCR; P < 0.05). Supplementation with 300 mg/kg Bifidobacterium improved ADG by 16.7%, though 600 mg/kg conferred no incremental benefits. LPS exposure upregulated pro-inflammatory cytokines (IL-1β, IL-6, TNF-α) and suppressed anti-inflammatory IL-10 and antioxidant enzymes (SOD, CAT, GSH-Px). Bifidobacterium (300 mg/kg) reduced inflammation and enhanced antioxidant capacity, increasing catalase (CAT) activity by 43.3%. Intestinal morphology was compromised by LPS, reducing the villus-to-crypt ratio (VH:CD), while Bifidobacterium improved villus height (9.8% increase at 21 days) and V/C (4.1 at 28 days). In conclusion, 300 mg/kg Bifidobacterium optimally mitigated LPS-induced stress by improving intestinal integrity, reducing systemic inflammation and oxidative damage, and restoring growth hormone axis function, thereby improving growth efficiency. These findings highlight its potential as a cost-effective intervention for enhancing resilience in intensive goose production systems.
脂多糖(LPS)诱导的肠道炎症是集约化家禽生产的主要挑战,影响生长和整体健康。它需要有效的饮食策略来增强肠道弹性和免疫功能。本研究评估了饲粮中添加双歧杆菌对lps应激雏鹅生长性能、肠道健康和免疫反应的影响。试验选用1日龄15 ~ 28日龄江南白鹅288只,按2 × 3因子设计分为6组,双双杆菌剂量分别为(0、300、600 mg/kg), LPS攻毒(腹腔注射0.5 mg/kg BW)各组。关键结果表明,LPS胁迫显著降低了平均日采食量(ADFI)和平均日增重(ADG) (P < 0.01),提高了饲料系数(FCR; P < 0.05),显著降低了生长性能。添加300 mg/kg双歧杆菌可使平均日增重提高16.7%,但600 mg/kg双歧杆菌没有增加益处。LPS暴露上调促炎细胞因子(IL-1β、IL-6、TNF-α),抑制抗炎IL-10和抗氧化酶(SOD、CAT、GSH-Px)。双歧杆菌(300 mg/kg)可降低炎症反应,增强抗氧化能力,使过氧化氢酶(CAT)活性提高43.3%。LPS破坏了肠道形态,降低了绒毛与隐窝的比率(VH:CD),而双歧杆菌提高了绒毛高度(21天增加了9.8%)和V/C(28天增加了4.1)。综上所述,300 mg/kg双歧杆菌可通过改善肠道完整性、减少全身炎症和氧化损伤、恢复生长激素轴功能,从而改善lps诱导的应激,从而提高生长效率。这些发现强调了它作为一种具有成本效益的干预措施的潜力,可以提高集约化鹅生产系统的恢复力。
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Poultry Science
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