Avian Pathology最新文献_第4页

Morphological and molecular characterization of avian trypanosomes in domestic chickens (Gallus gallus domesticus) in Southeast Asia and review of the parasite morphometry in different avian hosts.

IF 2.5 2区农林科学

Avian Pathology Pub Date : 2025-02-24 DOI: 10.1080/03079457.2025.2462628

Pornchai Pornpanom, Gediminas Valkiūnas, Surya Paudel

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Comparative genomic analysis reveals the emergence and dissemination of different Salmonella enterica serovar Gallinarum biovar Gallinarum lineages in Brazil.

IF 2.5 2区农林科学

Avian Pathology Pub Date : 2025-02-13 DOI: 10.1080/03079457.2025.2458601

Diéssy Kipper, Renato Hohl Orsi, Nathalie de Souza Zanetti, Silvia De Carli, Andrea Karoline Mascitti, André Salvador Kazantzi Fonseca, Nilo Ikuta, Martin Wiedmann, Vagner Ricardo Lunge

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Histomorphological characteristics of keel bone maturation and keel bone fractures in laying hens.

IF 2.5 2区农林科学

Avian Pathology Pub Date : 2025-02-05 DOI: 10.1080/03079457.2024.2448498

Páll Gretarsson, Käthe Kittelsen, Randi Oppermann Moe, Ingrid Toftaker, Ida Thøfner

{"title":"Histomorphological characteristics of keel bone maturation and keel bone fractures in laying hens.","authors":"Páll Gretarsson, Käthe Kittelsen, Randi Oppermann Moe, Ingrid Toftaker, Ida Thøfner","doi":"10.1080/03079457.2024.2448498","DOIUrl":"https://doi.org/10.1080/03079457.2024.2448498","url":null,"abstract":"The keel bone in laying hens is prone to fractures, especially on the caudal third of the keel, which is also the last part to ossify. Keel bone fractures (KBF) typically occur between 25 and 50 weeks of age (WOA). However, the keel is fully ossified at around 40 WOA, suggesting fractures can occur before ossification is complete. To better understand the relationship between KBF and ossification, this descriptive study examined keel bone morphology during maturation. Keel bones from 50 commercial aviary housed Dekalb White laying hens were collected at 10 timepoints from 17-53 WOA and prepared for histological analysis. The samples were stained with haematoxylin and eosin and Safranin O to show cartilage, ossification, bone tissue, and KBF. The results indicated an ossification process similar to endochondral ossification. The degree of ossification varied between individuals of the same age. The age at complete ossification varied from 28-49 WOA. None of the keels from hens aged 53 WOA were fully ossified. Cartilage canals were present in the keel cartilage. Medullary bone was observed in all age groups. Most fractures lacked tissue morphologies typical of high-impact collisions, suggesting the need for further research into the underlying causes. This is the first study to detail keel bone histomorphology in commercial laying hens, providing baseline data for future research.","PeriodicalId":8788,"journal":{"name":"Avian Pathology","volume":" ","pages":"1-16"},"PeriodicalIF":2.5,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143188180","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

Genetic and structural factors contributing to the dominance and persistence of goose astrovirus type 2. 鹅星状病毒2型显性和持久性的遗传和结构因素。

IF 2.5 2区农林科学

Avian Pathology Pub Date : 2025-02-05 DOI: 10.1080/03079457.2025.2454416

Peng Jiang, Aolin Li, Hongfu Ma, Yankun Lan, Jiaguo Wang, Xin Wang, Liang Zhao, Qifei Wu, Yong Wang, Xu Guo

引用次数: 0

Deletion of ttrA and pduA genes in Salmonella enterica serovars induce a comparable immune response to wild-type infection in different chicken lineages. 肠沙门氏菌血清型中ttrA和pduA基因的缺失在不同鸡系中诱导了对野生型感染的相似免疫反应。

IF 2.5 2区农林科学

Avian Pathology Pub Date : 2025-02-05 DOI: 10.1080/03079457.2025.2457095

Túlio Spina de Lima, Mauro de Mesquita Souza Saraiva, Adriana Maria de Almeida, Taisa Santiago Ferreira, Lucas Bocchini Rodrigues Alves, Viviane Amorim Ferreira, Oliveiro Caetano de Freitas Neto, Paul Andrew Barrow, Angelo Berchieri Junior

引用次数: 0

Pathogenicity of duck circovirus and novel goose parvovirus co-infection in SPF ducks. 鸭圆环病毒和新型鹅副粘病毒共同感染 SPF 鸭的致病性。

IF 2.5 2区农林科学

Avian Pathology Pub Date : 2025-02-01 Epub Date: 2024-08-22 DOI: 10.1080/03079457.2024.2383231

Yudong Zhu, Qiong Wu, Mian Wu, Dalin He, Bingrong Wu, Mingtian Mao, Wentao Tang, Jiake Li, Caiqi Wang, Hui Zhao, Yafei Qin, Youxiang Diao, Yi Tang

{"title":"Pathogenicity of duck circovirus and novel goose parvovirus co-infection in SPF ducks.","authors":"Yudong Zhu, Qiong Wu, Mian Wu, Dalin He, Bingrong Wu, Mingtian Mao, Wentao Tang, Jiake Li, Caiqi Wang, Hui Zhao, Yafei Qin, Youxiang Diao, Yi Tang","doi":"10.1080/03079457.2024.2383231","DOIUrl":"10.1080/03079457.2024.2383231","url":null,"abstract":"Duck circovirus (DuCV) is one of the most prevalent infectious viruses in the duck industry in China. Although the clinical signs vary, it often causes immunosuppression in the host and leads to secondary infection with other pathogens. Novel goose parvovirus (NGPV) mainly infects ducks and causes short beak and dwarfism syndrome in ducks. However, the incidence of infection in ducks has increased in recent years, and the phenomenon of mixed infection with DuCV is common, resulting in more severe clinical morbidity. However, there are no systematic studies evaluating the presence of mixed infections. In order to investigate the synergistic pathogenicity of DuCV and NGPV co-infection in SPF ducks, a comparative experiment using DuCV and NGPV co-infection and mono-infection bird models was established. The results showed that the clinical signs of short beak, dwarfism and immunosuppression were more obvious in DuCV and NGPV co-infected ducks; the tissue damage of target organs was more serious, and the viral titre in organs and cloacal swabs were more significant compared with those of SPF ducks infected with only one virus. The results indicated that co-infection with DuCV and NGPV could promote viral replication and cause more severe tissue damage and immunosuppression than single virus infection. The present study reveals that the co-infection of NGPV and DuCV has a synergistic pathogenic effect from the aspect of pathogenicity, and the conclusions drawn not only clarify the direction of the subsequent research on the mechanism of co-infection of NGPV and DuCV, but also provide a scientific basis for the research on the co-infection of immunosuppressive pathogens and other pathogens.","PeriodicalId":8788,"journal":{"name":"Avian Pathology","volume":" ","pages":"76-82"},"PeriodicalIF":2.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141733473","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

Development of a recombinant non-replicating Newcastle disease virus. 重组非复制新城疫病毒的开发。

IF 2.5 2区农林科学

Avian Pathology Pub Date : 2025-02-01 Epub Date: 2024-09-25 DOI: 10.1080/03079457.2024.2403412

Pheik-Sheen Cheow, Tiong Kit Tan, Adelene Ai-Lian Song, Khatijah Yusoff, Suet Lin Chia

引用次数: 0

Lessons learnt on infectious bronchitis virus lineage GI-23. 从传染性支气管炎病毒 GI-23 系中汲取的教训。

IF 2.5 2区农林科学

Avian Pathology Pub Date : 2025-02-01 Epub Date: 2024-09-16 DOI: 10.1080/03079457.2024.2398030

Avner Finger, Udi Ashash, Dana Goldenberg, Ziv Raviv

{"title":"Lessons learnt on infectious bronchitis virus lineage GI-23.","authors":"Avner Finger, Udi Ashash, Dana Goldenberg, Ziv Raviv","doi":"10.1080/03079457.2024.2398030","DOIUrl":"10.1080/03079457.2024.2398030","url":null,"abstract":"Infectious bronchitis virus (IBV) is the first coronavirus discovered in the world in the early 1930s and despite decades of extensive immunoprophylaxis efforts, it remains a major health concern to poultry producers worldwide. Rapid evolution due to large poultry population sizes coupled with high mutation and recombination events and the reliance of the antiviral immune response on specific antibodies against the epitopes of the S1 glycoprotein, render the control of IBV extremely challenging. The numerous and rapidly evolving genetic and antigenic IBV types are currently classified based on the whole S1 gene sequence, into 36 lineages clustered in eight genotypes. Most lineages (29) are grouped in genotype I (GI). \"Variant 2\" (Israel/Variant 2/1998) is the prototype strain of lineage GI-23 and, since this lineage emerged during the mid-1990s in the Middle East, it has evolved into numerous genetically related strains and disseminated to five continents. The hallmarks of IBV Variant 2-like strain infections are high virulence and remarkable nephrotropism and nephropathogenicity; however, the molecular mechanisms of these traits remain to be elucidated. Limited protection from previously utilized vaccine strains and accumulated losses to poultry producers have urged the development and implementation of homologous Variant 2-like vaccine strains. The latest avian coronavirus biology with specific emphasis on the cumulative knowledge about IBV \"Variant 2\" and emergence of related strains, characteristics and control are reviewed.","PeriodicalId":8788,"journal":{"name":"Avian Pathology","volume":" ","pages":"27-39"},"PeriodicalIF":2.5,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142071858","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

Influence of biosecurity on the occurrence of various enteric viruses in broiler flocks. 生物安全对肉鸡群中各种肠道病毒发生的影响。

IF 2.5 2区农林科学

Avian Pathology Pub Date : 2025-02-01 Epub Date: 2024-08-08 DOI: 10.1080/03079457.2024.2377337

Beatrice Grafl, Barbara Gaußmann, Ivana Bilic, Remco Folkertsma, Michael Hess

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The first report and biological characterization of Avian Orthoavulavirus 16 in wild migratory waterfowl and domestic poultry in China reveal a potential threat to birds. 中国首次报告了野生候鸟水禽和家禽中的禽正沟病毒 16，其生物学特征揭示了该病毒对鸟类的潜在威胁。

IF 2.5 2区农林科学

Avian Pathology Pub Date : 2025-02-01 Epub Date: 2024-07-17 DOI: 10.1080/03079457.2024.2373366

Yuxin Sha, Weiwen Yan, Xinxin Liu, Haoran Chai, Jianjun Chen, Hongjin Li, Mengjun Wang, Shanshan Jiang, Sijie Wang, Yongning Ren, Hongli Li, Yifei Liu, Tobias Stoeger, Abdul Wajid, Aleksandar Dodovski, Chao Gao, Claro N Mingala, Dmitry B Andreychuk, Renfu Yin

引用次数: 0