Veterinary and Animal Science最新文献_第2页

Spleen protective role, Antiplasmodial and Antioxidant activity of Polyalthia longifolia in mice infected with Plasmodium berghei parasite 长叶蓼对伯氏疟原虫感染小鼠的保脾作用、抗疟原虫及抗氧化活性

IF 1.9 Q2 AGRICULTURE, DAIRY & ANIMAL SCIENCE

Veterinary and Animal Science

Pub Date : 2026-01-06 DOI: 10.1016/j.vas.2026.100568

Divine Avwerosuoghene Onobrudu , Joel Okpoghono , Joy Onyewonuwa Acha , Cyril Chukwudi Dunkwu , Kingsley Chinedu Enyi , Innocent Onyesom

Malaria is a potentially fatal illness that is mostly prevalent in tropical regions. Finding new compounds with antimalarial action can be facilitated through investigating medicinal plants. This study is aimed at determining the antioxidant properties, antimalaria and spleen protective role of Polyalthia longifolia in mice infected with Plasmodium berghei. Total of thirty six (36) Swiss albino BALB/c mice were used for the study and 30 were inoculated with P. berghei (NK 65 strain) malarial parasite. Graded doses (100, 200 and 400 mg/kg/day) of ethanol extract of P. longifolia (EEPL) leaves and standard drug, Artemether and Lumefantrine (lonart) (2 mg/kg/day) were used for the treatment of malaria mice. One-way ANOVA was used for statistical analysis, and values were presented as percentage change ± SD. The results of this study showed that treatment of malaria with 100, 200 and 400 mg/kg/day of EEPL, and Artemether and Lumefantrine (lonart) (2 mg/kg/day), steadily reduced parasitaemia of malaria mice. There was significant increase in GSH, GPx, CAT, SOD, TAC and ferritin in the spleen across treatment groups when compared with control. The spleens of malaria mice exhibited structural disorganization and remodelling which were regularised after treatment with the EEPL and lonart. However, treatment with the standard drug (lonart) had the highest survival rate, followed by the 400 mg/kg/day EEPL. In conclusion, EEPL treatment was able to control the macrophage response of mice erythrocytes infected with P. berghei. To pinpoint the exact mechanism causing these alterations, more research, such as characterizing the bioactive chemicals, might be required.

疟疾是一种潜在的致命疾病，主要在热带地区流行。通过研究药用植物可以促进发现具有抗疟作用的新化合物。本研究旨在研究长叶莲对感染伯氏疟原虫小鼠的抗氧化、抗疟和保脾作用。实验共选用36只瑞士白化BALB/c小鼠，其中30只接种伯氏疟原虫（NK 65株）。采用分剂量（100、200、400 mg/kg/d）的长叶乙醇提取物和标准药物蒿甲醚、甲苯胺（lonart）（2 mg/kg/d）治疗疟疾小鼠。采用单因素方差分析进行统计分析，数值以百分比变化±SD表示。本研究结果表明，用100、200和400 mg/kg/d的EEPL和蒿甲醚和甲氧苄啶（lonart）（2 mg/kg/d）治疗疟疾，可稳定降低疟疾小鼠的寄生虫血症。各治疗组脾脏GSH、GPx、CAT、SOD、TAC、铁蛋白含量均显著高于对照组。经EEPL和lonart治疗后，疟疾小鼠的脾脏出现结构紊乱和重构，并呈现出规律性。然而，使用标准药物（lonart）治疗的存活率最高，其次是400 mg/kg/天的EEPL。综上所述，EEPL治疗能够控制感染伯氏螺旋体的小鼠红细胞的巨噬细胞反应。为了查明导致这些变化的确切机制，可能需要进行更多的研究，例如描述生物活性化学物质的特征。

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引用次数: 0

Dietary arginine modulates egg production and mTOR signalling pathway gene expression in adult Japanese quail (Coturnix japonica) 日粮精氨酸对成年日本鹌鹑产蛋量和mTOR信号通路基因表达的调节

IF 1.9 Q2 AGRICULTURE, DAIRY & ANIMAL SCIENCE

Veterinary and Animal Science

Pub Date : 2026-01-05 DOI: 10.1016/j.vas.2026.100567

Mequanint Gashew , Gebrehaweria K. Reda , Fadella Nur Almira , Eman Moustafa Abdelbary , Gabriella Gulyás , Renáta Knop , Brigitta Csernus , Csaba Szabó , Ádám Z. Lendvai , Levente Czeglédi

Arginine, an essential amino acid in birds, plays a central role in growth and reproduction. Regulation of the mechanistic target of rapamycin (mTOR) signalling pathway is among its key functions. This study examined how dietary arginine affects reproductive performance, body mass, and hepatic gene expression in adult female Japanese quail (Coturnix japonica). A total of 81 quails were randomly assigned to one of the three dietary treatments for 14 days: a diet containing 1.26% arginine (control), 0.945% arginine (restricted), and 1.575% arginine (supplemented). Body mass, hen-day egg production (HDEP), and egg mass were recorded, and liver samples were analysed using qPCR for mTOR signalling pathway-related genes. Arginine supplementation significantly increased HDEP, whereas neither restriction nor supplementation altered body mass or egg mass. Arginine restriction downregulated the expression of MTOR, IGF1, GHR, FASN, ATG5, ATG9A, SOD1, and SOD2 genes. In contrast, supplementation upregulated ATG5 but downregulated SOD2. Network analysis revealed treatment-dependent shifts: under restriction, SOD2 functioned as a key bridge despite reduced expression, whereas under supplementation, centrality shifted to GHR and FASN, indicating enhanced growth and lipogenic activity. Overall, dietary arginine reshaped the molecular structure of the mTOR pathway without affecting somatic maintenance, instead favouring reproductive output. These findings suggest that dietary arginine regulates egg production and gene expression in the mTOR signalling pathway in adult Japanese quail.

精氨酸是鸟类的一种必需氨基酸，在生长和繁殖中起着核心作用。调控雷帕霉素（mTOR）信号通路的机制靶点是其关键功能之一。本研究考察了膳食精氨酸如何影响成年雌性日本鹌鹑（Coturnix japonica）的生殖性能、体重和肝脏基因表达。将81只鹌鹑随机分为3组，分别饲喂精氨酸含量为1.26%（对照）、0.945%（限制）和1.575%（补充）的饲粮，试验为期14 d。记录体重、母鸡日产蛋量（HDEP）和鸡蛋质量，并使用qPCR分析肝脏样本中mTOR信号通路相关基因。精氨酸的补充显著增加了HDEP，而限制和补充都没有改变体重或鸡蛋质量。精氨酸限制下调MTOR、IGF1、GHR、FASN、ATG5、ATG9A、SOD1和SOD2基因的表达。相反，补充剂上调了ATG5，下调了SOD2。网络分析揭示了治疗依赖性的转变：在限制条件下，SOD2作为关键桥梁发挥作用，尽管表达减少，而在补充条件下，中心转移到GHR和FASN，表明生长和脂肪生成活性增强。总的来说，膳食精氨酸重塑了mTOR通路的分子结构，而不影响体细胞维持，反而有利于生殖输出。这些结果表明，膳食精氨酸可调节成年日本鹌鹑的产蛋量和mTOR信号通路的基因表达。

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引用次数: 0

Poultry gut health: industry drivers, management determinants, and emerging research directions 家禽肠道健康：产业驱动、管理决定因素和新兴研究方向

IF 1.9 Q2 AGRICULTURE, DAIRY & ANIMAL SCIENCE

Veterinary and Animal Science

Pub Date : 2026-01-03 DOI: 10.1016/j.vas.2026.100566

Mohammad Naeem Azizi , Noor Aminullah , Sadia Alam , Faisal Danish

Gut health has emerged as a critical determinant of sustainable poultry production, directly influencing nutrient absorption, immune competence, disease resistance, and overall bird performance. Recent research has highlighted the central role of the gut microbiota in maintaining intestinal health and functions, with strategies such as probiotics, prebiotics, synbiotics, postbiotics, phytogenic compounds, and fermented feed ingredients demonstrating considerable promise in promoting microbial balance and enhancing gut integrity. Efforts to strengthen intestinal barrier function through modulation of tight junction proteins and improvement of gut morphology, including villus height and crypt depth, have been shown to enhance nutrient utilisation, reduce pathogen translocation, and support overall growth performance. The global trend toward antibiotic-free production has accelerated the development and application of safer alternatives, aligning poultry health management with consumer demands, regulatory requirements, and sustainable production goals. Environmental and management stressors, including temperature fluctuations, stocking density, litter quality, and water composition, remain significant challenges that can disrupt microbial equilibrium and intestinal barrier integrity. Precision nutrition, early gut health biomarkers, and non-invasive diagnostic tools are increasingly enabling proactive management strategies to optimise performance and disease resilience. This review provides an overview of current innovations in poultry gut health, evaluates the drivers and challenges influencing intestinal health management, and identifies future research directions. It emphasises integrated approaches combining nutritional, microbiological, environmental, and regulatory considerations to achieve sustainable, efficient, and welfare-oriented poultry production.

肠道健康已成为可持续家禽生产的关键决定因素，直接影响营养吸收、免疫能力、抗病能力和鸟类的整体生产性能。最近的研究强调了肠道微生物群在维持肠道健康和功能方面的核心作用，诸如益生菌、益生元、合成菌、后益生菌、植物化合物和发酵饲料成分等策略在促进微生物平衡和增强肠道完整性方面显示出相当大的前景。通过调节紧密连接蛋白和改善肠道形态（包括绒毛高度和隐窝深度）来增强肠道屏障功能的努力已被证明可以提高营养利用，减少病原体易位，并支持整体生长性能。无抗生素生产的全球趋势加速了更安全替代品的开发和应用，使家禽健康管理与消费者需求、监管要求和可持续生产目标保持一致。环境和管理压力因素，包括温度波动、饲养密度、凋落物质量和水成分，仍然是可能破坏微生物平衡和肠道屏障完整性的重大挑战。精确营养、早期肠道健康生物标志物和非侵入性诊断工具越来越多地使主动管理策略能够优化性能和疾病抵御能力。本文综述了目前家禽肠道健康的创新，评估了影响肠道健康管理的驱动因素和挑战，并确定了未来的研究方向。它强调将营养、微生物、环境和监管考虑相结合的综合方法，以实现可持续、高效和以福利为导向的家禽生产。

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引用次数: 0

Differential impact of sodium butyrate forms on intestinal morphology, gene expression, and growth performance in broiler chickens under cold stress at high altitude 不同丁酸钠形态对高海拔冷应激肉鸡肠道形态、基因表达和生长性能的影响

IF 1.9 Q2 AGRICULTURE, DAIRY & ANIMAL SCIENCE

Veterinary and Animal Science

Pub Date : 2025-12-29 DOI: 10.1016/j.vas.2025.100565

Sajad Pat , Behnam Ahmadipour , Fariborz Khajali , Hossein Hassanpour

Broiler chickens reared at high altitudes face multiple stressors, including cold and hypoxia, which impair growth and gut health. Sodium butyrate (NaB) has emerged as a promising feed additive to mitigate these effects. This study evaluated the impact of non-encapsulated NaB and encapsulated (E-NaB) sodium butyrate on intestinal morphology, gene expression, and performance metrics in broilers under cold stress at high altitude. A total of 675 one-day-old Cobb broilers were assigned to nine dietary treatments: control, NaB (0.05% or 0.1%), E-NaB (0.05% or 0.1%), and their combinations. Birds were reared at 2100 m and subjected to cold stress. Growth performance, intestinal morphology, gene expression (MUC2, FABP2, GLUT2, TLR2, GPX, SOD1), and pulmonary hypertension syndrome (PHS) index (RV:TV ratio) were assessed. NaB supplementation improved the feed conversion ratio during the starter phase and overall rearing period (P < 0.05). Combined NaB+E-NaB treatments enhanced villus height, width, and surface area in the duodenum, jejunum, and ileum (P < 0.05). Gene expression analysis revealed upregulation of MUC2, FABP2, GLUT2, TLR2, GPX, and SOD1 in supplemented groups, particularly in combined treatments (P < 0.05). The RV:TV ratio, indicating PHS risk, was reduced in NaB0.1% and combined groups (P < 0.05). It is concluded that Sodium butyrate, especially in combined or encapsulated forms, improved gut health, modulated the expression of antioxidant-related genes (GPX and SOD1), and enhanced performance in broilers under cold stress and high-altitude conditions. These findings highlight NaB’s potential as a strategic feed additive to enhance resilience in challenging environments.

在高海拔地区饲养的肉鸡面临多种应激源，包括寒冷和缺氧，这些应激源会损害生长和肠道健康。丁酸钠（NaB）已成为一种有前景的饲料添加剂，以减轻这些影响。本试验研究了未包封NaB和包封（E-NaB）丁酸钠对高海拔冷应激肉鸡肠道形态、基因表达和生产性能指标的影响。试验选用675只1日龄科布肉鸡，分为对照、NaB（0.05%或0.1%）、E-NaB（0.05%或0.1%）及其组合9种饲粮处理。在海拔2100米的地方饲养，进行冷应激。评估生长性能、肠道形态、基因表达（MUC2、FABP2、GLUT2、TLR2、GPX、SOD1）和肺动脉高压综合征（PHS）指数（RV:TV比）。添加NaB提高了发酵期和整个饲养期的饲料系数（P < 0.05）。NaB+E-NaB联合处理提高了十二指肠、空肠和回肠的绒毛高度、宽度和表面积（P < 0.05）。基因表达分析显示，添加组MUC2、FABP2、GLUT2、TLR2、GPX和SOD1表达上调，特别是在联合处理组（P < 0.05）。NaB0.1%组和联合组小PHS风险的RV:TV比值降低（P < 0.05）。由此可见，在冷应激和高海拔条件下，丁酸钠（尤其是复合或胶囊形式）可改善肉鸡肠道健康，调节抗氧化相关基因（GPX和SOD1）的表达，提高肉鸡生产性能。这些发现突出了NaB作为一种战略饲料添加剂的潜力，可以增强其在具有挑战性的环境中的弹性。

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引用次数: 0

New frontiers in regenerative medicine: Protocol standardization and morphological assessment of leukocyte-platelet rich fibrin in cows, with a longitudinal study on growth factor release dynamics 再生医学的新前沿：牛体内富白细胞血小板纤维蛋白的方案标准化和形态学评估，以及生长因子释放动力学的纵向研究

IF 1.9 Q2 AGRICULTURE, DAIRY & ANIMAL SCIENCE

Veterinary and Animal Science

Pub Date : 2025-12-29 DOI: 10.1016/j.vas.2025.100564

Giovanni Della Valle , Maria Chiara Alterisio , Jacopo Guccione , Chiara Caterino , Federica Aragosa , Gianmarco Ferrara , Davide De Biase , Paolo Ciaramella , Gerardo Fatone

Leukocyte-Platelets Rich Fibrin (L-PRF) is a platelet-derived autologous agent. It is a powerful wound-sealing biological scaffold that promotes the healing process through the release of growth factors (GFs) and matrix proteins. To date, the l-PRF in bovines has not yet been investigated and a standardized production protocol has not yet been described. Therefore, the aim of the study was to standardise the l-PRF production protocol and to evaluate macroscopically and histologically the l-PRF membranes obtained and observe the GFs release over time and lactation phases: at 1 h (T0), 4 h (T1), 24 h (T2), and 168 h (T3) after extraction. Eighty cows were divided into four groups of 20 animals, based on their lactation phase. A whole blood sample of 20 ml was taken and divided for l-PRF clot production and haemato-biochemical investigations. The membranes presented the following overall mean characteristics: a length of 34.4 ± 7.3 cm, a width of 12.5 ± 2.6 cm, and a weight of 4.9 ± 0.17 cm. Histological analysis showed a well-defined histoarchitecture consisting of a first layer of erythrocytes, a layer of leukocytes, erythrocytes, and platelets, a layer of leukocytes, a layer of platelets, and finally a layer of slightly eosinophilic fibrin. The GFs significantly increased with upward trends in all phases of lactation and at each time control, overlapping the behavior of GF in other species. Based on the encouraging findings of this study, further clinical trials for applicative potential of the l-PRF membrane in bovine medicine should be assessed.

富白细胞血小板纤维蛋白（L-PRF）是一种血小板来源的自体药物。它是一种强大的伤口密封生物支架，通过释放生长因子（GFs）和基质蛋白来促进愈合过程。迄今为止，尚未对牛的l-PRF进行调查，也尚未描述标准化生产方案。因此，本研究的目的是标准化l-PRF的生产方案，从宏观和组织学上评价所获得的l-PRF膜，并观察提取后1小时（T0）、4小时（T1）、24小时（T2）和168小时（T3）随时间和哺乳期的GFs释放情况。80头奶牛根据哺乳期分为4组，每组20头。取全血20 ml，分离用于l-PRF凝块产生和血液生化检查。膜的平均长度为34.4±7.3 cm，宽度为12.5±2.6 cm，重量为4.9±0.17 cm。组织学分析显示一个明确的组织结构，包括第一层红细胞，一层白细胞，红细胞和血小板，一层白细胞，一层血小板，最后一层微嗜酸性纤维蛋白。在哺乳期各阶段和各时间对照组中，GF均呈上升趋势，显著增加，与其他物种GF的行为重叠。基于这一令人鼓舞的研究结果，应该对l-PRF膜在牛医学中的应用潜力进行进一步的临床试验。

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引用次数: 0

Natural infection with Trypanosoma cruzi in a litter of dogs (Canis lupus familiaris) from Floridablanca, Colombia, suggests congenital transmission and a potential zoonotic risk 哥伦比亚佛罗里达布兰卡一窝狗自然感染克氏锥虫（犬狼疮）表明存在先天性传播和潜在人畜共患风险

IF 1.9 Q2 AGRICULTURE, DAIRY & ANIMAL SCIENCE

Veterinary and Animal Science

Pub Date : 2025-12-22 DOI: 10.1016/j.vas.2025.100562

Jeiczon Jaimes-Dueñez , María Victoria Esteban-Mendoza , Ian Sebastián Murcia-Cueto , Luz Zoraya Beatriz Duarte-Rodríguez , Genny Liliana Uribe Gómez , Harley Díaz Rincón , Javier Alonso Herrera Cuadros , Omar Cantillo-Barraza

Chagas disease (CD) remains a major public health challenge in endemic regions of Colombia, where both domestic and sylvatic host sustain transmission. This study reports the first natural infection with Trypanosoma cruzi in a litter of dogs from Floridablanca, in the Metropolitan Area of Bucaramanga (MAB), Santander, most likely associated with congenital transmission. Eight puppies and their dam were clinically evaluated, and blood samples were analyzed through hematology, quantitative real-time PCR (qPCR), multiplex PCR for discrete typing units (DTUs) identification, and hemoculture. Serological surveillance was also performed in the owners’ nuclear family. All puppies and the dam tested positive for T. cruzi DNA by qPCR, with high parasitemia levels (751.8–977.3 parasite equivalents/mL in puppies and 526.2 parasite equivalents/mL in the dam), corresponding to DTU I (TcI). Hematological findings in puppies indicated regenerative anemia, thrombocytopenia, and lymphocytosis. Despite supportive treatment, seven puppies died (mortality rate = 87.5 %), and one was euthanized after three months of disease progression. Postmortem examination revealed multisystemic lesions, including interstitial pneumonia, necrotizing hepatitis, myocardial lymphocytic infiltrates with amastigote cysts, and meningoencephalitis, consistent with acute trypanosomiasis. Hemoculture was positive in this case. None of the family members tested positive for T. cruzi antibodies. To our knowledge, this is the first description of natural infection with T. cruzi DTU I (TcI) in a litter of dogs from Colombia. The marked parasitemia observed, together with hemoculture positivity, highlights the potential of these hosts to infect triatomine vectors and increase the risk of CD transmission in endemic areas.

恰加斯病（CD）仍然是哥伦比亚流行地区的一个主要公共卫生挑战，在这些地区，家庭宿主和森林宿主都持续传播。本研究报告了在桑坦德布卡拉曼加大都会区（MAB）佛罗里达布兰卡的一窝狗中首次自然感染克氏锥虫，很可能与先天性传播有关。对8只幼犬及其母鼠进行临床评估，并对其血液样本进行血液学、定量实时PCR （qPCR）、多重PCR分离分型单元（DTUs）鉴定和血液培养分析。对业主核心家庭进行血清学监测。所有幼犬和母鼠均qPCR检测克氏体DNA阳性，较高的寄生水平（幼犬为751.8 ~ 977.3个寄生当量/mL，母鼠为526.2个寄生当量/mL），符合DTU I （TcI）。小狗的血液学结果显示再生性贫血、血小板减少症和淋巴细胞增多症。尽管进行了支持性治疗，但仍有7只小狗死亡（死亡率= 87.5%），其中一只在疾病进展三个月后被安乐死。尸检显示多系统病变，包括间质性肺炎、坏死性肝炎、心肌淋巴细胞浸润伴无鞭虫囊肿和脑膜脑炎，与急性锥虫病一致。本例血液培养呈阳性。没有家庭成员的克氏体抗体检测呈阳性。据我们所知，这是首次在哥伦比亚一窝狗中发现克氏t型虫DTU I （TcI）自然感染。所观察到的明显寄生虫病，加上血液培养阳性，突出了这些宿主感染锥蝽病媒的潜力，并增加了流行地区传播乳糜泻的风险。

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引用次数: 0

Nutritional and managerial interventions on growth performance, nutrient transport-related genes and behavioral responses in heats stressed broiler chickens 营养和管理干预对热应激肉鸡生长性能、营养转运相关基因和行为反应的影响

IF 1.9 Q2 AGRICULTURE, DAIRY & ANIMAL SCIENCE

Veterinary and Animal Science

Pub Date : 2025-12-19 DOI: 10.1016/j.vas.2025.100561

Abolfazl Ghaleghafi, Kaveh Jafari Khorshidi, Mohammad Ali Jafari

The present study aimed to investigate the effect of nutritional additives and management on performance, behavioral responses, energy metabolism and expression of stress, antioxidant, growth, and nutrient transport-related genes in broiler chickens under heat stress (HS). Experimental treatments including: 1) control group, 2) heat-stressed group (HS), 3) HS + vitamin E and organic selenium, 4) HS + vitamin C and coenzyme Q10, 5) HS + eubiotic, 6) HS + 10 % increase in methionine, 7) HS + 20 % increase in methionine, and 8) HS + ice and non-alcoholic beer. HS was applied from day 28 to 42 of age at 32 ± 1 °C, daily from 10:00 AM to 6:00 PM. The results showed that HS treatment significantly reduced feed intake and body weight gain compared with the control group, whereas supplementation with vitamin E + selenium and vitamin C + coenzyme Q10 fully alleviated these negative effects, restoring performance to levels comparable to the control. HS increased scores for pecking, panting, resting, and wing spreading, while the ice and beer treatment completely mitigated these behavioral stress responses. HS suppressed hepatic expression of HSP70, antioxidant genes, IGF1 and SLC3A1. Overall, these findings highlight that targeted nutritional supplementation combined with management strategies can effectively mitigate HS–induced impairments in broiler chickens, improving performance, behavioral responses, energy metabolism, and gene expression.

本试验旨在研究营养添加剂和管理对热应激肉鸡生产性能、行为反应、能量代谢以及应激、抗氧化、生长和营养物质转运相关基因表达的影响。试验处理包括：1)对照组，2)热应激组（HS）， 3) HS +维生素E和有机硒，4)HS +维生素C和辅酶Q10, 5) HS +益生菌，6)HS +蛋氨酸增加10%，7)HS +蛋氨酸增加20%，8)HS +冰和无酒精啤酒。从第28天至42天，在32±1°C下，每天10:00 AM至6:00 PM应用HS。结果表明，与对照组相比，HS处理显著降低了采食量和增重，而添加维生素E +硒和维生素C +辅酶Q10完全缓解了这些负面影响，使生产性能恢复到与对照组相当的水平。HS提高了啄食、喘气、休息和展翅的得分，而冰和啤酒治疗完全缓解了这些行为应激反应。HS抑制肝脏HSP70、抗氧化基因、IGF1和SLC3A1的表达。综上所述，这些研究结果表明，有针对性的营养补充与管理策略相结合，可以有效减轻hs诱导的肉鸡损伤，改善生产性能、行为反应、能量代谢和基因表达。

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引用次数: 0

Dietary inclusion of beetroot (Beta vulgaris): Impacts on egg production, egg quality, and physiological status of commercial laying hens 饲粮中添加甜菜根对商品蛋鸡产蛋量、蛋品质和生理状态的影响

IF 1.9 Q2 AGRICULTURE, DAIRY & ANIMAL SCIENCE

Veterinary and Animal Science

Pub Date : 2025-12-18 DOI: 10.1016/j.vas.2025.100559

Mansur Ahmed , Kanon Das , Momotaj Hossen , Mohammad S Ataher , Jannatul M Momu , Md Aktaruzzaman , Mowdudul H. Talha , Abu Taher , Mohammad A Mamun , Sonjoy Sarkar , Shad Mahfuz

This study evaluated the effects of dietary beet root powder (BRP; Beta vulgaris) supplementation on egg production, egg quality, and physiological status of commercial laying hens. A total of 108 ISA Brown hens (40 weeks old) were randomly allocated into three dietary treatments: a control group (basal diet without BRP), BRP-0.5 % (basal diet with 0.5 % BRP), and BRP-1 % (basal diet with 1.0 % BRP) for eight weeks. Each treatment included 36 hens, divided into four replicates of nine birds. Supplementation with 1 % BRP significantly (P < 0.05) increased egg weight and egg mass compared with the control, without altering hen-day egg production, external, and internal quality of eggs. Meanwhile, BRP-1 % improved the feed conversion ratio (P < 0.05) without affecting the feed intake. Fatty acid analysis revealed a significant reduction (P < 0.05) in total saturated fatty acids, particularly in palmitic acid (C16:0) in the BRP-1 % group. Moreover, BRP-1 % showed a significant increase (P < 0.05) in linolenic acid (C18:3, omega-3) and total omega-3 fatty acids relative to the other groups. Amino acid profiling showed the highest rise in glutamic acid, with BRP-1 % significantly higher (P < 0.05) than the control. Additionally, BRP-1 % supplementation significantly reduced (P < 0.05) serum total cholesterol and triglyceride levels contrast to the control and BRP-0.5 % groups. Finally, this study suggests that 1 % BRP supplementation can be applied in laying hen diets to improve egg quality, egg yolk fatty acid profile, and lipid metabolism of laying hens without compromising health and egg production.

本试验旨在评价饲粮中添加甜菜根粉（BRP; Beta vulgaris）对商品蛋鸡产蛋量、蛋品质和生理状态的影响。选取108只40周龄的ISA褐蛋鸡，随机分为对照组（基础饲粮不含BRP）、BRP- 0.5%（基础饲粮含0.5% BRP）和BRP- 1%（基础饲粮含1.0% BRP） 3个饲粮处理，为期8周。每个处理36只母鸡，分为4个重复，每个重复9只鸡。与对照组相比，添加1% BRP显著（P < 0.05）提高了蛋重和蛋质量，但未改变母鸡日产蛋量、蛋的外部和内部品质。同时，brp - 1%在不影响采食量的情况下提高了饲料系数（P < 0.05）。脂肪酸分析显示，brp - 1%组总饱和脂肪酸显著减少（P < 0.05），特别是棕榈酸（C16:0）。此外，BRP-1 %组的亚麻酸（C18:3, omega-3）和总omega-3脂肪酸含量显著高于其他组（P < 0.05）。氨基酸谱显示谷氨酸升高幅度最大，BRP-1 %显著高于对照组（P < 0.05）。此外，与对照组和brp - 0.5%组相比，添加brp - 1%显著降低了血清总胆固醇和甘油三酯水平（P < 0.05）。综上所述，在不影响蛋鸡健康和产蛋量的前提下，蛋鸡饲粮中添加1%的BRP可改善蛋鸡的蛋品质、蛋黄脂肪酸谱和脂质代谢。

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引用次数: 0

Comparative evaluation of milk yield and composition in three indigenous West African goat breeds under semi-intensive management 半集约管理下西非三个地方山羊品种的产奶量和成分比较评价

IF 1.9 Q2 AGRICULTURE, DAIRY & ANIMAL SCIENCE

Veterinary and Animal Science

Pub Date : 2025-12-18 DOI: 10.1016/j.vas.2025.100560

Helliot Kossi Dosseh , Sedo Eudes Anihouvi , Michel Kere , Rodrigue Vivien Cao Diogo , Mawule Sylvie Hounzangbé-Adoté , Luc Hippolyte Dossa

Milk production constitutes an essential component of livestock farming in Benin. Although goats are predominantly reared for meat, their milk represents a valuable nutritional alternative to cow’s milk, particularly for individuals with dietary sensitivities and children in food-insecure households. Nevertheless, despite the substantial goat population, caprine milk production remains significantly underexploited. This study assessed milk yield and composition of three indigenous West African goat breeds, Red Maradi Goat (RMG), West African Dwarf Goat (WAD), and West Long-Legged Goat (LLG), under semi-intensive systems in northern Benin to evaluate breed adaptability and support sustainable goat farming. Forty-eight goats (15 females and one male per breed) were selected from traditional farms and managed at an experimental station. Daily milk yield was recorded by hand-milking on days 8, 28, and 49 postpartum. A total of 318 milk samples were assessed for fat, protein, lactose, solids-not-fat (SNF), and pH using a Speedy Lab Milk Analyzer. The resulting data were then evaluated using Generalized Linear Mixed Models and correlation analysis. Milk yield differed significantly among breeds (p < 0.05), with RMG and LLG outperforming WAD. While WAD goats produced milk with significantly higher fat content, RMG maintained stable composition across lactation, WAD showed declines in most components except fat, and LLG exhibited increasing fat with decreasing SNF and density. Breed and lactation stage influenced milk pH, indicating physiological differences. Strong correlations emerged among SNF, protein, lactose, and density. These results position RMG and LLG as promising for yield and compositional stability, while WAD may be preferable for high-fat milk production. Selective breeding and improved feeding management could improve dairy productivity and sustainability in West African goat production systems.

牛奶生产是贝宁畜牧业的重要组成部分。虽然山羊主要用于肉类，但它们的奶是牛奶的一种有价值的营养替代品，特别是对饮食敏感的个人和粮食不安全家庭的儿童。然而，尽管山羊数量庞大，但羊奶产量仍未得到充分利用。本研究评估了贝宁北部半集约化体系下的三个本土西非山羊品种红马拉迪山羊（RMG）、西非矮山羊（WAD）和西长腿山羊（LLG）的产奶量和组成，以评估品种适应性并支持可持续山羊养殖。从传统农场选择48只山羊（每个品种15只母山羊和1只公山羊），在一个试验站进行管理。在产后第8、28和49天用手挤奶记录每日产奶量。使用Speedy Lab牛奶分析仪对318份牛奶样品进行脂肪、蛋白质、乳糖、非脂肪固体（SNF）和pH值的评估。然后使用广义线性混合模型和相关分析对所得数据进行评估。产奶量各品种间差异显著（p < 0.05）， RMG和LLG的产奶量优于WAD。WAD山羊产奶脂肪含量显著提高，RMG成分在整个哺乳期保持稳定，WAD山羊除脂肪外大部分成分呈下降趋势，LLG山羊脂肪含量随SNF和密度的降低而增加。品种和哺乳期影响牛奶pH值，显示出生理差异。SNF、蛋白质、乳糖和密度之间存在很强的相关性。这些结果表明RMG和LLG在产量和组成稳定性方面有希望，而WAD可能更适合高脂牛奶生产。选择性育种和改进饲养管理可以提高西非山羊生产系统的奶业生产力和可持续性。

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引用次数: 0

Dietary supplementation of lignocellulose promotes the growth of Cherry Valley ducks by improving intestinal function 饲粮中添加木质纤维素可通过改善肠道功能促进樱桃谷鸭生长

IF 1.9 Q2 AGRICULTURE, DAIRY & ANIMAL SCIENCE

Veterinary and Animal Science

Pub Date : 2025-12-17 DOI: 10.1016/j.vas.2025.100558

Xinzhi Geng , Zhenzhen Chen , Jian Wang , Biao Dong , Jing Ge , Minmeng Zhao , Long Liu , Daoqing Gong , Haixia Liu , Tuoyu Geng

Dietary fiber contributes to improving intestinal morphology, barrier integrity, and microbial balance, thereby enhancing nutrient utilization and growth performance in animals. This study evaluated the effects of supplementing lignocellulose on intestinal function and growth performance in meat ducks. A total of 180 one-day-old Cherry Valley ducks were randomly assigned to the control group (CON), lignocellulose group 1 (LC1), and lignocellulose group 2 (LC2) (6 replicates each group, 10 ducks each replicate). Ducks in the CON group were fed a basal diet; the LC1 group received the basal diet supplemented with 0.6% lignocellulose from days 1 to 42, while the LC2 group received the basal diet supplemented with 0.3 % lignocellulose from days 1 to 21 and 0.6 % from days 22 to 42. Lignocellulose supplementation increased average daily gain in the LC1 group (P < 0.05), and improved feed conversion ratio in the LC2 group before day 28 (P < 0.05). Additionally, lignocellulose increased intestinal length (P < 0.05) and weight (P < 0.05), and improved the intestinal structure (P < 0.05) and antioxidant capacity (P < 0.05). However, the expression of genes associated with tight junctions, immunity, and inflammation was not significantly affected. Overall, dietary lignocellulose promotes growth in meat ducks by improving intestinal morphology and antioxidant capacity without affecting the expression of genes involved in intestinal tight junction and immunity or inflammation. The magnitude of benefits depends on the supplementation level, duration, and the age of birds.

膳食纤维有助于改善肠道形态、屏障完整性和微生物平衡，从而提高动物对养分的利用和生长性能。本试验旨在评价饲粮中添加木质纤维素对肉鸭肠道功能和生长性能的影响。试验选用180只1日龄樱桃谷肉鸭，随机分为对照组（CON）、木质纤维素组1 （LC1）和木质纤维素组2 (LC2)，每组6个重复，每个重复10只鸭。CON组饲喂基础饲粮；LC1组在第1 ~ 42天饲喂在基础饲粮中添加0.6%木质纤维素的试验饲粮，LC2组在第1 ~ 21天和第22 ~ 42天分别饲喂在基础饲粮中添加0.3%和0.6%木质纤维素的试验饲粮。添加木质纤维素提高了LC1组的平均日增重（P < 0.05），提高了LC2组28天前的饲料系数（P < 0.05）。此外，木质纤维素增加了肠道长度（P < 0.05）和重量（P < 0.05），改善了肠道结构（P < 0.05）和抗氧化能力（P < 0.05）。然而，与紧密连接、免疫和炎症相关的基因的表达并未受到显著影响。总之，饲粮中木质纤维素通过改善肠道形态和抗氧化能力促进肉鸭生长，而不影响肠道紧密连接、免疫或炎症相关基因的表达。益处的大小取决于补充水平、持续时间和鸟龄。

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引用次数: 0