Avian Pathology最新文献_第2页

Management factors associated with the isolation of Salmonella spp. from table egg barns in Alberta. 与阿尔伯塔省鸡蛋仓沙门氏菌分离相关的管理因素

IF 2.2 2区农林科学

Avian Pathology Pub Date : 2025-12-01 Epub Date: 2025-07-16 DOI: 10.1080/03079457.2025.2519359

Joan A St Amand, Thiago L Noetzold, Colleen B Annett Christianson

引用次数: 0

Infectivity and pathogenicity of wild bird-derived rotavirus A strains in domestic chickens. 野鸟源轮状病毒A株在家鸡中的传染性和致病性。

IF 2.2 2区农林科学

Avian Pathology Pub Date : 2025-12-01 Epub Date: 2025-06-16 DOI: 10.1080/03079457.2025.2513337

Yuji Fujii, Kosuke Soda, Tatsunori Masatani, Hiroshi Ito, Toshihiro Ito, Hiroki Sakai, Junko Nio-Kobayashi, Kumiko Koyama, Ayano Matsuzaki, Naoto Ito

引用次数: 0

Investigation regarding the occurrence of Fowl adenovirus (FAdV) in dead-in-shell chicks and young broiler breeders in Sweden. 禽腺病毒（FAdV）在瑞典死壳雏鸡和雏肉鸡养殖者中发生的调查。

IF 2.2 2区农林科学

Avian Pathology Pub Date : 2025-10-10 DOI: 10.1080/03079457.2025.2572968

Ylva Lindgren, Mikael Berg, Eva Berndtson, Anna Birgersson, Anne-Lie Blomström, Helena Eriksson, Siamak Zohari, Désirée S Jansson

引用次数: 0

Surveillance systems evaluation in the context of avian diseases: a scoping review on current approaches and attributes. 禽病监测系统评价：对当前方法和属性的范围审查。

IF 2.2 2区农林科学

Avian Pathology Pub Date : 2025-10-08 DOI: 10.1080/03079457.2025.2565234

G Graziosi, D Fornasiero, L Martella, G Cattoli, P Mulatti, E Catelli, M De Nardi

引用次数: 0

Molecular and Pathological Evaluation of a Velogenic Newcastle Disease Virus Strain Circulating in Vietnam. 越南流行的一种新城疫病毒毒株的分子和病理鉴定。

IF 2.2 2区农林科学

Avian Pathology Pub Date : 2025-10-06 DOI: 10.1080/03079457.2025.2570722

The Viet Hoang Nguyen, Ha Giang Nguyen, Tuyet Ngan Thai, Ngoc Duong Vu, Thi Chau Giang Tran, Nhat Huy Bui, Thi Tam Than, Hoang Duc Le, Moon Her, Hye-Ryoung Kim, Ji-Ye Kim, Van Phan Le

{"title":"Molecular and Pathological Evaluation of a Velogenic Newcastle Disease Virus Strain Circulating in Vietnam.","authors":"The Viet Hoang Nguyen, Ha Giang Nguyen, Tuyet Ngan Thai, Ngoc Duong Vu, Thi Chau Giang Tran, Nhat Huy Bui, Thi Tam Than, Hoang Duc Le, Moon Her, Hye-Ryoung Kim, Ji-Ye Kim, Van Phan Le","doi":"10.1080/03079457.2025.2570722","DOIUrl":"https://doi.org/10.1080/03079457.2025.2570722","url":null,"abstract":"The Newcastle disease virus (NDV) poses a major challenge to poultry farming in Vietnam as it continues to threaten both economic and food security. Despite vaccination efforts, outbreaks caused by velogenic NDV strains continue to occur, indicating gaps in our understanding of the pathogenicity of these viruses. In this study, a velogenic NDV strain (genotype VII.2) was isolated from vaccinated chickens during an outbreak in southern Vietnam. Whole genome sequencing and phylogenetic analyses confirmed that this isolate belongs to a genotype associated with virulent NDV strains. The strain had an intracerebral pathogenicity index (ICPI) of 1.81 and a mean-death-time (MDT) of 56 hours. Experimental infection of domestic chickens showed a rapid onset of severe clinical signs, extensive tissue damage, and a high mortality rate, even in co-housed, uninfected chickens. Virus excretion via the oral cavity and cloaca of the experimental chickens facilitated rapid transmission within the flock. These results underscore the urgent need for enhanced epidemiological surveillance and tailored vaccination strategies to mitigate the impact of NDV outbreaks in Vietnam. This study provides important insights into the pathogenicity, transmission, and lesion profile of NDV genotype VII.2, contributing to the development of effective control measures.","PeriodicalId":8788,"journal":{"name":"Avian Pathology","volume":" ","pages":"1-41"},"PeriodicalIF":2.2,"publicationDate":"2025-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145231481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Molecular epidemiology of IBDV in Italy: emergence of Northwestern European reassortants (genotype A3B1) and co-circulation with local strains. 意大利IBDV的分子流行病学：西北欧重组病毒（基因型A3B1）的出现及其与当地菌株的共循环。

IF 2.2 2区农林科学

Avian Pathology Pub Date : 2025-10-03 DOI: 10.1080/03079457.2025.2557881

Francesca Poletto, Gabriele Lizzi, Matteo Legnardi, Caterina Lupini, Claudia Maria Tucciarone, Giovanni Franzo, Valerio Giaccone, Sara Pedrazzoli, Giulia Quaglia, Giulia Graziosi, Marco De Nardi, Elena Catelli, Mattia Cecchinato

引用次数: 0

Molecular detection of a novel herpesvirus in the stone-curlew (Burhinus oedicnemus) from the Canary Islands. 加那利群岛石鹬（布氏麻鹬）中一种新型疱疹病毒的分子检测。

IF 2.2 2区农林科学

Avian Pathology Pub Date : 2025-10-01 Epub Date: 2025-06-10 DOI: 10.1080/03079457.2025.2489547

Ana Colom-Rivero, Antonio Fernández, Lucía Marrero-Ponce, Ayoze Castro-Alonso, Candela Rivero-Herrera, Lucía Caballero-Hernández, Cristian M Suárez-Santana, Eva Sierra

{"title":"Molecular detection of a novel herpesvirus in the stone-curlew (Burhinus oedicnemus) from the Canary Islands.","authors":"Ana Colom-Rivero, Antonio Fernández, Lucía Marrero-Ponce, Ayoze Castro-Alonso, Candela Rivero-Herrera, Lucía Caballero-Hernández, Cristian M Suárez-Santana, Eva Sierra","doi":"10.1080/03079457.2025.2489547","DOIUrl":"10.1080/03079457.2025.2489547","url":null,"abstract":"Avian herpesviruses (AHVs) are widely distributed and associated with a variety of diseases affecting bird populations globally. Despite the increasing detection of AHVs in recent years, there remains a significant gap in knowledge regarding their classification and host range. This study aimed to detect herpesvirus (HV) in two vulnerable, endemic subspecies of stone-curlew (Burhinus oedicnemus) in the Canary Islands. Forty-six pooled tissue swabs (liver, kidney, and lung) and 135 individual swabs (brain, cloaca, and oropharyngeal cavity) were collected from 50 stone-curlews recorded as deceased wildlife specimens between 2020 and 2023. DNA from a novel alpha-HV was successfully amplified from seven out of the 181 tissue samples (4%) and from four out of 50 birds analysed (8%) using a semi-nested polymerase chain reaction (PCR) approach with degenerate primers. Positive samples were distributed across various tissue types: brain (n = 1), kidney (n = 1), lung (n = 2), coelomic cavity (n = 1), and oropharyngeal swab (n = 2). Some individuals tested positive in multiple tissue types, although no histopathological features indicative of HV infection were observed in any of the birds. Sequencing of all positive samples revealed identical HV nucleotide sequences across all specimens. The longest PCR amplicon, obtained with the TGV and KG1 primer combination, yielded identical sequences in two of the seven positive samples. Based on these findings, we propose the designation of this novel HV as Burhinus oedicnemus alphaherpesvirus.","PeriodicalId":8788,"journal":{"name":"Avian Pathology","volume":" ","pages":"613-623"},"PeriodicalIF":2.2,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143778791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Differences in lesion development of slow- and fast-growing meat-type chickens after experimental challenge with Enterococcus cecorum. 盲肠球菌实验性攻毒后慢速和快速肉鸡病变发展的差异。

IF 2.2 2区农林科学

Avian Pathology Pub Date : 2025-10-01 Epub Date: 2025-04-14 DOI: 10.1080/03079457.2025.2485109

Amanda Rosenbaum, Silke Rautenschlein, Arne Jung

{"title":"Differences in lesion development of slow- and fast-growing meat-type chickens after experimental challenge with Enterococcus cecorum.","authors":"Amanda Rosenbaum, Silke Rautenschlein, Arne Jung","doi":"10.1080/03079457.2025.2485109","DOIUrl":"10.1080/03079457.2025.2485109","url":null,"abstract":"Field observations suggest genotype-associated differences in susceptibility to infection with Enterococcus cecorum (EC). We hypothesized that slow-growing (SG) chickens show less clinical signs and reduced lesions compared to fast-growing (FG) chickens after experimental challenge with EC. At 1-day post-hatch (dph), 97 FG and 97 SG chickens were randomly assigned to four groups: control, SG (CSG), control, FG (CFG), EC-inoculated, SG (ESG), and EC-inoculated, FG (EFG). After oral inoculation with 107 colony forming units EC or mock inoculation with physiological saline, chickens were monitored for clinical signs and samples were collected weekly for further analysis via ELISA, real-time PCR, and flow cytometric analysis. The final necropsy of 40 chickens per group was carried out at 43/44 dph. Clinical signs and pathological findings were observed in a reduced number of chickens in group ESG compared to EFG. Extra-intestinal colonization with EC at 43/44 dph was significantly reduced in group ESG compared to EFG (P < 0.05). Circulating heterophils and monocytes were significantly increased in groups ESG and EFG compared to the control groups (P < 0.05). Additionally, circulating monocytes were increased and heterophil/lymphocyte (H/L) ratios were decreased in SG chickens compared to FG chickens. We may speculate that SG chickens were less affected by the EC-associated disease due to a more efficient innate immune response and may more vigorously control extra-intestinal colonization after translocation from the intestine. Overall, the use of slow-growing chickens may reduce the incidence of the EC-associated disease in meat-type chickens and therefore increase overall health performance.","PeriodicalId":8788,"journal":{"name":"Avian Pathology","volume":" ","pages":"592-601"},"PeriodicalIF":2.2,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143960064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Molecular characterization and recombination analysis of Gyrovirus homsa2 in chickens. 鸡homsa2型回旋病毒的分子特征及重组分析。

IF 2.2 2区农林科学

Avian Pathology Pub Date : 2025-10-01 Epub Date: 2025-06-24 DOI: 10.1080/03079457.2025.2494756

Zhibin Zhang, Weichi Li, Xin Xu, Dandan Li, Jun Ji, Lunguang Yao, Yingzuo Bi, Qingmei Xie

{"title":"Molecular characterization and recombination analysis of Gyrovirus homsa2 in chickens.","authors":"Zhibin Zhang, Weichi Li, Xin Xu, Dandan Li, Jun Ji, Lunguang Yao, Yingzuo Bi, Qingmei Xie","doi":"10.1080/03079457.2025.2494756","DOIUrl":"10.1080/03079457.2025.2494756","url":null,"abstract":"Gyrovirus homsa2 (GyVh2), originally identified in Tunisian children with diarrhoea, was previously known as Gyrovirus 6. In this study, chickens from 36 poultry farms across four major poultry-producing provinces in China (Henan, Hubei, Anhui, and Jiangsu) were screened for GyVh2 using polymerase chain reaction (PCR) from 2022-2024. As a result, 12 farms positive for GyVh2 were detected and subsequently subjected to whole-genome sequencing for GyVh2. The genomes of the 12 GyVh2 from positive farms were all 2282 nucleotides (nt) in length. Sequence similarity analysis showed high similarity (94.87%-99.65%) among the obtained and reference GyVh2 strains with no significant determining effect of years or geographic distribution, but low similarity (48.99%-57.60%) with other Gyrovirus species (Gyrovirus chickenanemia, Gyrovirus galga1, Gyrovirus galga2 and Gyrovirus homsa1). Phylogenetic analysis of the whole genome sequences of all 12 GyVh2-positive farms revealed that they formed a unique branch, clearly separated from other Gyrovirus species. Recombination analysis suggested that HN220604 (accession no.: PQ519595.1) and HN221228 (accession no.: PQ519596.1) may have originated from recombination with the human-derived GyVh2 strain (accession no.: NC_022789.1). A hypervariable region (located at sites 140-152) and highly mutated sites at positions 149, 254 and 380 were identified in the capsid protein through amino acid mutation analysis. The observed association between GyVh2 cross-species transmission and complex mutations and recombination offers a basis for future studies on its molecular epidemiology and evolution.","PeriodicalId":8788,"journal":{"name":"Avian Pathology","volume":" ","pages":"624-632"},"PeriodicalIF":2.2,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143969079","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Mechanism of pulmonary arterial vascular cell dysfunction in pulmonary hypertension in broiler chickens. 肉鸡肺动脉高压中肺动脉血管细胞功能障碍的机制。

IF 2.2 2区农林科学

Avian Pathology Pub Date : 2025-10-01 Epub Date: 2025-04-24 DOI: 10.1080/03079457.2025.2480802

Juan Chen, Chenxi Jiang, Xiaoqin Hu, Yun Zhang, Xiaona Gao, Xiaoquan Guo, Huibo Jin, Ying Zhang, Yirong Wu, Jing Liang, Pei Liu, Ping Liu

{"title":"Mechanism of pulmonary arterial vascular cell dysfunction in pulmonary hypertension in broiler chickens.","authors":"Juan Chen, Chenxi Jiang, Xiaoqin Hu, Yun Zhang, Xiaona Gao, Xiaoquan Guo, Huibo Jin, Ying Zhang, Yirong Wu, Jing Liang, Pei Liu, Ping Liu","doi":"10.1080/03079457.2025.2480802","DOIUrl":"10.1080/03079457.2025.2480802","url":null,"abstract":"Broiler ascites syndrome is a common and complex disease in broiler farming, which severely impacts broiler growth performance and health and brings huge economic losses to the breeding industry. Hypoxia has been shown to be an important cause of this disease. Prolonged exposure of broiler chickens to a hypoxic environment induces pulmonary vasoconstriction, which leads to an increase in pulmonary artery pressure, triggering pulmonary artery remodelling and compensatory right ventricular hypertrophy, and ultimately ascites. Pulmonary artery remodelling is a process in which the vascular wall tissue structure and function undergo pathological changes after the pulmonary artery is stimulated by various injuries or hypoxia, including endothelial dysfunction, abnormal proliferation of pulmonary artery smooth muscle cells, vascular fibrosis, etc. When these cells are damaged or stimulated, they may undergo programmed cell death, an orderly and regulated mode of cell death that is important for maintaining the stability of the body's internal environment. It has been demonstrated that death modes such as apoptosis and autophagy are involved in the pathophysiologic process of pulmonary hypertension, but their specific molecular mechanisms are still unclear. In this review, we first describe the pathogenesis of broiler ascites, then describe the specific mechanism of dysfunction of pulmonary artery vascular cells in broiler ascites syndrome, and finally elaborate the progression of different programmed cell death in broiler pulmonary hypertension. This study aims to elucidate the specific mechanisms underlying the dysfunction of pulmonary artery vascular cells in broiler pulmonary hypertension, thereby enhancing our understanding of the pathogenesis of this syndrome.","PeriodicalId":8788,"journal":{"name":"Avian Pathology","volume":" ","pages":"548-559"},"PeriodicalIF":2.2,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143969333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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