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Isolation and characterization of Pseudomonas phage HJ01 and its therapeutic efficacy in canine pyoderma. 假单胞菌噬菌体HJ01的分离鉴定及其治疗犬脓皮病的疗效。
IF 2.3 2区 农林科学
BMC Veterinary Research Pub Date : 2025-07-05 DOI: 10.1186/s12917-025-04877-8
Yixian Wei, Ziyong Li, Jianlong Lao, Jijie Huang, Hailin Chen, Jiajia Li, Yayu Deng, Xinyu Mao, Runwen Ma, Yuxing Wu, Yizhou Tan, Xun Li, Yangqing Lu, Shunjin Jiang, Xiaoye Wang
{"title":"Isolation and characterization of Pseudomonas phage HJ01 and its therapeutic efficacy in canine pyoderma.","authors":"Yixian Wei, Ziyong Li, Jianlong Lao, Jijie Huang, Hailin Chen, Jiajia Li, Yayu Deng, Xinyu Mao, Runwen Ma, Yuxing Wu, Yizhou Tan, Xun Li, Yangqing Lu, Shunjin Jiang, Xiaoye Wang","doi":"10.1186/s12917-025-04877-8","DOIUrl":"10.1186/s12917-025-04877-8","url":null,"abstract":"<p><strong>Background: </strong>Pseudomonas aeruginosa is a major pathogen in canine pyoderma, with increasing antibiotic resistance necessitating the development of alternative therapies. This study aimed to isolate and characterize a lytic phage targeting multidrug-resistant P. aeruginosa and evaluate its therapeutic efficacy in a canine pyoderma model. The key methods include isolation of phage HJ01 from wastewater, identification of genomic and biological characteristics, and subcutaneous injection of HJ01 in a canine pyoderma model induced by P. aeruginosa.</p><p><strong>Results: </strong>The host strain GDPA-01 exhibited multidrug resistance, with a 75% resistance gene detection rate, and harbored virulence genes such as exoU and exoT. Phage HJ01, classified as Pakpunavirus, exhibited optimal activity at pH 6.0-8.0, thermal stability up to 50 °C, a latent period of 20 min, and a burst size of 52 PFU/cell. In vivo, compared with the controls, HJ01 significantly reduced pruritus, cytology, and skin lesion scores (p < 0.05). Histopathology confirmed that in dogs treated with HJ01, epidermal repair was accelerated and inflammation was reduced.</p><p><strong>Conclusions: </strong>HJ01 emerges as a promising therapeutic candidate for managing multidrug-resistant P. aeruginosa infections in companion animals. This study pioneers the application of phage therapy in canine pyoderma, highlighting its potential to mitigate antibiotic overuse and address public health risks associated with zoonotic multidrug-resistant bacteria.</p>","PeriodicalId":9041,"journal":{"name":"BMC Veterinary Research","volume":"21 1","pages":"443"},"PeriodicalIF":2.3,"publicationDate":"2025-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12228238/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144567045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Assessment of knowledge, attitude, and practice of livestock farmers in northwest Iran regarding myiasis. 伊朗西北部畜牧农民对蝇蛆病的知识、态度和做法的评估。
IF 2.3 2区 农林科学
BMC Veterinary Research Pub Date : 2025-07-04 DOI: 10.1186/s12917-025-04906-6
Parisa Soltan-Alinejad, Fatemeh Rezaei, Sajad Babazadeh, Ali Akhtari, Sana Fakour, Sara Kamrani, Abbas Abbasi-Ghahramanloo, Davoud Adham, Eslam Moradi-Asl
{"title":"Assessment of knowledge, attitude, and practice of livestock farmers in northwest Iran regarding myiasis.","authors":"Parisa Soltan-Alinejad, Fatemeh Rezaei, Sajad Babazadeh, Ali Akhtari, Sana Fakour, Sara Kamrani, Abbas Abbasi-Ghahramanloo, Davoud Adham, Eslam Moradi-Asl","doi":"10.1186/s12917-025-04906-6","DOIUrl":"10.1186/s12917-025-04906-6","url":null,"abstract":"<p><strong>Background: </strong>Myiasis is the infestation of tissues and organs in vertebrates, including humans and animals, by the larvae of dipteran flies that occurs in subtropical and tropical areas.</p><p><strong>Methods: </strong>This study assessed the knowledge, attitudes, and practices of livestock farmers across 12 counties in Ardabil province regarding myiasis in 2024, employing ANOVA and T-tests to analyze the relationships with various variables.</p><p><strong>Results: </strong>The study found a statistically significant difference in knowledge, attitude, and practice mean scores among individuals influenced by education level, residency, livestock contact, disease history, and animal interactions. In this study, a significant direct correlation was found between knowledge and attitude (r = 0.12, p < 0.001), knowledge and practice (r = 0.08, p < 0.001), as well as attitude and practice (r = 0.34, p < 0.001).</p><p><strong>Conclusion: </strong>Research in Ardabil province shows that increasing awareness and training for youth on disease prevention and control can significantly enhance livestock disease management. The county health network should develop a strong educational initiative for livestock farmers and their families to raise awareness about myiasis and encourage proactive measures over time.</p>","PeriodicalId":9041,"journal":{"name":"BMC Veterinary Research","volume":"21 1","pages":"436"},"PeriodicalIF":2.3,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12231681/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144564376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Genetic analyses and molecular associations of FSHR and GH genes for semen traits in Egyptian buffalo. 埃及水牛精液性状FSHR和GH基因的遗传分析及分子关联。
IF 2.3 2区 农林科学
BMC Veterinary Research Pub Date : 2025-07-04 DOI: 10.1186/s12917-025-04866-x
Abdelfatah R Zaghloul, Maher H Khalil, Mahmoud M Iraqi, Amin M S Amin, Ibrahim Abousoliman, Ayman G El Nagar
{"title":"Genetic analyses and molecular associations of FSHR and GH genes for semen traits in Egyptian buffalo.","authors":"Abdelfatah R Zaghloul, Maher H Khalil, Mahmoud M Iraqi, Amin M S Amin, Ibrahim Abousoliman, Ayman G El Nagar","doi":"10.1186/s12917-025-04866-x","DOIUrl":"10.1186/s12917-025-04866-x","url":null,"abstract":"<p><strong>Background & objectives: </strong>The reproductive efficiency of buffalo bulls is crucial for genetic improvement, herd fertility, and overall productivity. Identifying genetic markers linked to semen traits can thus enhance breeding programs and optimize artificial insemination strategies. The objectives of this study were to estimate variance components and heritability. estimating the breeding values (EBVs), plotting the genetic and phenotypic trends and detection of the molecular genetic associations of FSHR and GH genes using PCR-RFLP with semen traits comprising ejaculate volume (EV), sperms motility (SM), live sperms (LS), abnormal sperms (AS) and sperms concentration (SC) in Egyptian buffalo.</p><p><strong>Methods: </strong>Data of 5178 semen ejaculates were collected from 2013 to 2022 from 111 bulls, progeny of 34 sires and 92 dams in two experimental herds. For molecular genetic analysis, a total of 86 buffalo bulls were used to characterize FSHR and GH genes.</p><p><strong>Results: </strong>The heritabilities estimates for semen traits were low and moderate, being 0.17, 0.28, 0.27, 0.27 and 0.23 for EV, SM, LS, AS and SC, respectively. Wide ranges of the EBVs were observed, being -0.69 to 1.27 ml for EV, -18.19 to 11.59% for SM, -19.31 to 9.15% for LS, -2.05 to 6.41% for AS and -0.39 to 0.54 × 10<sup>9</sup> sperms/ml for SC. The averages of EBV throughout different years of semen collection were ranged from -0.26 to 0.43 ml for EV, -9.73 and 3.32% for SM, -9.99 and 3.45% for LS, -0.65 to 0.53% for AS and -0.19 to 0.13 × 10<sup>9</sup> sperms per ml for SC. The phenotypic trends plotted throughout the experimental period increased for all semen traits except for EV. The GLSM of the semen phenotypic values were ranged from 3.09 to 3.86 ml for EV, 61.55 and 66.53% for SM, 60.91 and 65.12% for LS, 4.34 to 9.28% for AS and 0.73 to 1.33 × 10<sup>9</sup> sperms per ml for SC.The differences in generalized least square means among GG, GC and CC genotypes of FSHR gene for semen traits were significantly in favor of GG genotype relative to GC and CC genotypes (P < 0.01). Two genotypes of TC and CC were detected for GH gene and the molecular genetic associations were significantly in favor of CC genotype relative to TC genotype (P < 0.01).</p><p><strong>Conclusion: </strong>Enhancing management and feeding practices, the implementation and widespread use of artificial insemination as well as employing precise estimations of predicted breeding values in genetic improvement programs, should effectively enhance the semen traits of Egyptian buffalo bulls. FSHR and GH genes could be used as potential candidate genes for marker-assisted selection to improve semen traits in buffalo bulls.</p>","PeriodicalId":9041,"journal":{"name":"BMC Veterinary Research","volume":"21 1","pages":"437"},"PeriodicalIF":2.3,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12226842/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144564378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Correction: Comparative antinociceptive and sedative effects of epidural romifidine and xylazine in dromedary Camels (Camelus dromedarius). 更正:硬膜外罗米非定和噻嗪对单峰骆驼的抗痛觉和镇静效果比较。
IF 2.3 2区 农林科学
BMC Veterinary Research Pub Date : 2025-07-04 DOI: 10.1186/s12917-025-04905-7
Mohamed A Hamed, Ibrahim S Zahran, Alaa Samy, Eman Fayad, Hanadi A Katouah, Foad Farrag, Mohamed M A Abumandour, Adel Sobhy, Ibrahim A Okene, Mustafa Shukry, Ahmed A Elolimy, Magdy Elgioushy
{"title":"Correction: Comparative antinociceptive and sedative effects of epidural romifidine and xylazine in dromedary Camels (Camelus dromedarius).","authors":"Mohamed A Hamed, Ibrahim S Zahran, Alaa Samy, Eman Fayad, Hanadi A Katouah, Foad Farrag, Mohamed M A Abumandour, Adel Sobhy, Ibrahim A Okene, Mustafa Shukry, Ahmed A Elolimy, Magdy Elgioushy","doi":"10.1186/s12917-025-04905-7","DOIUrl":"10.1186/s12917-025-04905-7","url":null,"abstract":"","PeriodicalId":9041,"journal":{"name":"BMC Veterinary Research","volume":"21 1","pages":"435"},"PeriodicalIF":2.3,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12232195/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144559120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Serological and molecular survey of hepatitis E virus in pets in shaanxi, China. 陕西省宠物戊型肝炎病毒血清学和分子学调查。
IF 2.3 2区 农林科学
BMC Veterinary Research Pub Date : 2025-07-03 DOI: 10.1186/s12917-025-04898-3
Yiyang Chen, Huanqing Lin, Shenhao Xu, Longzhi Nie, Yujia Tang, Xinru Li, DanBa Zhaxi, Chengwei Zhang, Qin Zhao, En-Min Zhou, Baoyuan Liu
{"title":"Serological and molecular survey of hepatitis E virus in pets in shaanxi, China.","authors":"Yiyang Chen, Huanqing Lin, Shenhao Xu, Longzhi Nie, Yujia Tang, Xinru Li, DanBa Zhaxi, Chengwei Zhang, Qin Zhao, En-Min Zhou, Baoyuan Liu","doi":"10.1186/s12917-025-04898-3","DOIUrl":"10.1186/s12917-025-04898-3","url":null,"abstract":"<p><strong>Background: </strong>Hepatitis E virus (HEV) is a zoonotic pathogen, and its infection is widespread in China. However, few studies were carried out on pets, especially in western China. Therefore, this study aimed to characterize the prevalence of HEV infection in pet dogs, cats, and rabbits. Serum samples from 177 pet dogs, 98 pet cats, and 56 pet rabbits were collected from a pet hospital located in Xi'an city of Shaanxi province, western China, to detect anti-HEV antibodies and HEV RNA.</p><p><strong>Results: </strong>The positivity rates of HEV IgG were 18.08% (32/177), 16.33% (16/98), and 10.71% (6/56) in pet dogs, cats, and rabbits, respectively. In addition, higher OD values of the anti-HEV IgM antibody were chosen for HEV detection, and the HEV RNA positivity rates were 0% (0/177), 0% (0/98), and 8.93% (5/56). Meanwhile, two different partial HEV ORF1 genes were obtained from 5 positive pet rabbit samples. These sequences shared 88.2% identity with each other and 48.6-98.2% identity with other HEVs. Phylogenetic analysis revealed that CN-SX-R1 and CN-SX-R2 (GenBank Nos. PP982770 and PP982771) detected in this study were closely related to genotype 3 HEV strains and belonged to rabbit HEVs.</p><p><strong>Conclusions: </strong>These results showed that HEV was prevalent in pet dogs, cats, and rabbits in Shaanxi, suggesting that necessary measures must be taken to prevent and control HEV infection in these species.</p>","PeriodicalId":9041,"journal":{"name":"BMC Veterinary Research","volume":"21 1","pages":"434"},"PeriodicalIF":2.3,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12225384/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144559121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 ultrasonographic evaluation of caudal vena cava diameter before and after fluid replacement in neonatal dehydrated calves with diarrhea. 新生儿脱水犊牛腹泻补液前后尾静脉内径的超声评价。
IF 2.3 2区 农林科学
BMC Veterinary Research Pub Date : 2025-07-02 DOI: 10.1186/s12917-025-04759-z
Alper Erturk, Mutlu Sevinc
{"title":"The ultrasonographic evaluation of caudal vena cava diameter before and after fluid replacement in neonatal dehydrated calves with diarrhea.","authors":"Alper Erturk, Mutlu Sevinc","doi":"10.1186/s12917-025-04759-z","DOIUrl":"10.1186/s12917-025-04759-z","url":null,"abstract":"&lt;p&gt;&lt;strong&gt;Background: &lt;/strong&gt;In calves with diarrhea, it is critical to accurately determine the severity of dehydration and provide adequate fluid therapy. However, objective criteria are still limited. The aim of this study, a prospective cohort diagnostic study, is to compare caudal vena cava maximum diameter with expiration (CVCmax), caudal vena cava minimum diameter with inspiration (CVCmin), and caudal vena cava collapsibility index (CVC-CI) measurements before and after fluid therapy and to establish cut-off values for distinguishing between moderately and severely dehydrated calves. Twenty-four calves, with their degree of dehydration assessed based on enophthalmos and skin elasticity duration, were divided into two equal groups. Group I: consisted of 12 calves with an estimated degree of dehydration of 8-10% and were considered moderately dehydrated (degree of enophthalmos 4-6 mm, skin elasticity duration (s) 2-5). Group II: consisted of 12 calves with an estimated degree of dehydration 10-12% and were considered severely dehydrated (degree of enophthalmos 6-8 mm, skin elasticity duration (s) 5-10). Clinical examination, complete blood count and blood gas analysis, hemodynamic parameters (heart rate, respiratory rate, capillary refill time (CRT), L-lactate, systolic blood pressure (SBP), diastolic blood pressure (DBP), and mean arterial pressure (MAP)) and ultrasonographic examinations were performed for 48 h: before treatment (hour 0), immediately after the first fluid bolus, and at hours 8, 24, and 48 after the first fluid bolus. The Friedman test was used for within-group comparisons over time, and the Mann-Whitney U test was used for between-group comparisons at different time points. Categorical data were analysed using the chi-squared test, and Fisher's exact test was used when expected cell counts were less than 5. Receiver operating characteristic (ROC) analysis was performed to determine the sensitivity, specificity, and cut-off (lower limit) of CVC diameter and CVC-CI (%) compared with selected parameters (SBP, DBP, MAP, and L-lactate) to discriminate between moderate and severe dehydration. Statistical significance was set at P &lt; 0.05.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Results: &lt;/strong&gt;CVCmax and CVCmin increased significantly after treatment in diarrheic calves (P &lt; 0.05). Additionally, a significant decrease in CVC-CI (%) was observed in the treated diarrheic calves. Receiver operating characteristic (ROC) analysis showed that the area under the curve (AUC) of CVCmax was 0.885 (95% CI: 0.823-0.946; P &lt; 0.001), with 82% sensitivity and 85% specificity at the intercept point of 1.05, the AUC of CVCmin was 0.913 (95% CI: 0.861-0.964; P &lt; 0.001), with 89% sensitivity and 84% specificity at the intercept point of 0.66, and were the most reliable parameters in differentiating between moderate and severe dehydration.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Conclusion: &lt;/strong&gt;A significant increase in CVCmax and CVCmin diameters, along with a significant decrease in CVC-C","PeriodicalId":9041,"journal":{"name":"BMC Veterinary Research","volume":"21 1","pages":"424"},"PeriodicalIF":2.3,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12219989/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144552010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Using online public animal price data as a signal for predicting an increase in animal disease outbreak reports: a pilot study on cross-correlation modeling in Thailand. 利用在线公开动物价格数据作为预测动物疾病暴发报告增加的信号:在泰国进行的相互关联建模试点研究。
IF 2.3 2区 农林科学
BMC Veterinary Research Pub Date : 2025-07-02 DOI: 10.1186/s12917-025-04888-5
Veerasak Punyapornwithaya, Supitchaya Srisawang, Chalita Jainonthee, Wengui Li, Ronello Abila, Bolortuya Purevsuren
{"title":"Using online public animal price data as a signal for predicting an increase in animal disease outbreak reports: a pilot study on cross-correlation modeling in Thailand.","authors":"Veerasak Punyapornwithaya, Supitchaya Srisawang, Chalita Jainonthee, Wengui Li, Ronello Abila, Bolortuya Purevsuren","doi":"10.1186/s12917-025-04888-5","DOIUrl":"10.1186/s12917-025-04888-5","url":null,"abstract":"<p><strong>Background: </strong>Changes in livestock prices are often linked to disease outbreaks. An animal price monitoring system has been considered a potential tool for predicting transboundary animal diseases (TADs). The aim of this study was to examine the cross-correlation between market price dynamics and disease outbreak patterns using publicly available online data to explore the potential of market prices as early indicators of impending TAD outbreaks.</p><p><strong>Methods: </strong>Time series data on TAD outbreak reports, including foot and mouth disease (FMD), lumpy skin disease (LSD), and African swine fever (ASF), as well as animal price data for cattle and pigs in Thailand, were analyzed. Cross-correlation analysis was conducted to assess the relationship between animal prices and disease outbreak report patterns. Data from January 2021 to December 2023 (primary dataset) were analyzed to identify cross-correlation patterns, while data from January to September 2024 (extended dataset) were incorporated to evaluate the consistency of the observed cross-correlation over the study period.</p><p><strong>Results: </strong>A significant cross-correlation was identified between cattle prices and the number of outbreak reports for FMD in the primary dataset. An increase in cattle prices during the preceding one to two months (lags of -1 and - 2) was associated with a subsequent rise in FMD outbreak reports. This correlation remained consistent when the extended dataset was incrementally incorporated and analyzed on a month-by-month basis. In contrast, in the primary dataset, no significant cross-correlation was observed between cattle prices and LSD outbreak reports. For ASF, cross-correlations between farm-gate pig prices and ASF outbreak reports were detected at lag 0, lag 3, lag 4, and lag 5 in the primary dataset; however, no significant correlation was observed in the extended dataset.</p><p><strong>Conclusions: </strong>This study demonstrates the feasibility of using animal price trends as signal tools for anticipating an increase in TAD outbreak reports. The findings specifically support the use of cattle price data as an early signal for forecasting increases in FMD outbreak reports in Thailand. The availability and consistency of publicly accessible data are essential components for the feasibility of using animal prices as a signal tool. Decision-makers and veterinary authorities may incorporate such tools into surveillance systems to support early warning efforts.</p>","PeriodicalId":9041,"journal":{"name":"BMC Veterinary Research","volume":"21 1","pages":"427"},"PeriodicalIF":2.3,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12219664/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144552041","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Conventional diagnosis and metagenomic analysis of a novel co-infection case involving Escherichia coli and immunosuppressive conditions with petechial hepatitis of broilers in South Korea: a case report. 韩国一例涉及大肠杆菌和免疫抑制条件的肉鸡细菌性肝炎的新型合并感染病例的常规诊断和宏基因组分析:1例报告。
IF 2.3 2区 农林科学
BMC Veterinary Research Pub Date : 2025-07-02 DOI: 10.1186/s12917-025-04855-0
Chi Sun Yun, Jae-Kyeom Kim, Hyojung Kwon, Yesong Kim, Moon Her, Jin-San Moon
{"title":"Conventional diagnosis and metagenomic analysis of a novel co-infection case involving Escherichia coli and immunosuppressive conditions with petechial hepatitis of broilers in South Korea: a case report.","authors":"Chi Sun Yun, Jae-Kyeom Kim, Hyojung Kwon, Yesong Kim, Moon Her, Jin-San Moon","doi":"10.1186/s12917-025-04855-0","DOIUrl":"10.1186/s12917-025-04855-0","url":null,"abstract":"<p><strong>Background: </strong>The conventional diagnosis in poultry disease enhances accuracy by combining clinical and necropsy observation with various molecular biological analysis. However, if the causative agents of a disease are not isolated and detected, accurate diagnosis and future disease management become challenging. The purpose of the present study aimed to diagnose and identify the causes of disease in broilers with novel petechial hepatitis by applying metagenomic analysis.</p><p><strong>Case presentation: </strong>Through the necropsy, tracheal and pericardial congestion, and severe petechia and perihepatitis in the livers were observed. Histopathological examination revealed infiltration of lymphocytes and bacterial colonies in various organs, as well as severe sinusoidal congestion, hemorrhages and hepatocyte necrosis in the livers. E. coli was isolated and identified in the liver samples. Although FAdV, CkChpV, CAstV, IBV and IBDV were detected, no viral agents were detected in the livers. Metagenomic analysis of the livers showed a predominance of bacterial composition, followed by fungal and viral agents, with E. coli being the most abundant. Analysis of virulence factors in E. coli revealed the presence of those associated with APEC, as well as other IPEC and ExPEC pathotypes.</p><p><strong>Conclusion: </strong>The present study identified a novel petechial hepatitis in broilers, associated with co-infections of antigenic variant IBDV, multiple pathotypes of E. coli, and possibly various causative. The application of metagenomic analysis proved valuable in identifying diverse potential pathogens when conventional methods were limited. These findings highlight the utility of metagenomic approaches as a complementary diagnostic tool and support their continued use in advancing poultry disease management.</p>","PeriodicalId":9041,"journal":{"name":"BMC Veterinary Research","volume":"21 1","pages":"432"},"PeriodicalIF":2.3,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12224477/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144551999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Development and validation of prognostic nomogram for overall survival in canine multicentric lymphoma: a retrospective study. 犬多中心淋巴瘤总生存预后图的发展和验证:一项回顾性研究。
IF 2.3 2区 农林科学
BMC Veterinary Research Pub Date : 2025-07-02 DOI: 10.1186/s12917-025-04857-y
Zeyun Zhu, Zixiang Lin, Jun Dong, Di Zhang
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引用次数: 0
Modifiable early life risk factors for dental calculus in dogs: a retrospective cross-sectional study in Finland. 狗牙结石可改变的早期生活危险因素:芬兰的一项回顾性横断面研究。
IF 2.3 2区 农林科学
BMC Veterinary Research Pub Date : 2025-07-02 DOI: 10.1186/s12917-025-04885-8
Manal B M Hemida, Sarah Holm, Mia Eklundh, Anna Hielm-Björkman
{"title":"Modifiable early life risk factors for dental calculus in dogs: a retrospective cross-sectional study in Finland.","authors":"Manal B M Hemida, Sarah Holm, Mia Eklundh, Anna Hielm-Björkman","doi":"10.1186/s12917-025-04885-8","DOIUrl":"10.1186/s12917-025-04885-8","url":null,"abstract":"","PeriodicalId":9041,"journal":{"name":"BMC Veterinary Research","volume":"21 1","pages":"430"},"PeriodicalIF":2.3,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12224493/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144552006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
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