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You searched for: Journal Avian pathology Remove constraint Journal: Avian pathology Source 2019 v.48 no.2 Remove constraint Source: 2019 v.48 no.2
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1. An avian influenza virus H6N1 outbreak in commercial layers: case report and reproduction of the disease

Author:
Landman, W. J. M.; Germeraad, E. A.; Kense, M. J.
Source:
Avian pathology 2019 v.48 no.2 pp. 98-110
ISSN:
1465-3338
Subject:
Influenza A virus; Mycoplasma gallisepticum; Newcastle disease; avian influenza; bacterial infections; case studies; decolorization; drugs; egg drop syndrome; egg production; egg shell; eggs; farms; flocks; hens; infectious bronchitis; intravenous injection; mortality; necropsy; nicarbazin; pathogenicity; viruses; Netherlands
Abstract:
... An outbreak of low pathogenic avian influenza (LPAI) subtype H6N1 (intravenous pathogenicity index = 0.11) infection occurred in four productive brown layer flocks on three farms in the Netherlands within a period of two months. The farms were located at a maximum distance of 4.6 km from each other. The infections were associated with egg production drops up to 74%, pale eggshells and persisting h ...
DOI:
10.1080/03079457.2018.1551612

2. Changes in gut bacterial communities in canaries infected by Macrorhabdus ornithogaster

Author:
Robino, Patrizia; Ferrocino, Ilario; Rossi, Giacomo; Dogliero, Andrea; Alessandria, Valentina; Grosso, Lisa; Galosi, Livio; Tramuta, Clara; Cocolin, Luca; Nebbia, Patrizia
Source:
Avian pathology 2019 v.48 no.2 pp. 111-120
ISSN:
1465-3338
Subject:
Acinetobacter; Lachnospiraceae; Lactobacillus; Lactococcus; Propionibacterium; Pseudomonas; Weissella; bacterial communities; canaries; denaturing gradient gel electrophoresis; digestive system diseases; digestive tract; feces; gastric mucosa; genes; health status; immunostimulants; intestinal microorganisms; lipid metabolism; macrophages; metagenomics; pets; polymerase chain reaction; ribosomal RNA; yeasts
Abstract:
... Macrorhabdus ornithogaster is an opportunistic yeast that colonizes the gastric mucosa of many avian species. Until now, no studies have focused on the influence of a gastric infection on the balance of the intestinal microbiota of birds. In this study, 44 faecal samples from individual canaries, with and without M. ornithogaster infection, were analysed. The detection of the yeast was evaluated b ...
DOI:
10.1080/03079457.2018.1553294

3. Chicken endothelial cells are highly responsive to viral innate immune stimuli and are susceptible to infections with various avian pathogens

Author:
Lion, Adrien; Esnault, Evelyne; Kut, Emmanuel; Guillory, Vanaïque; Trapp-Fragnet, Laetitia; Soubies, Sébastien M.; Chanteloup, Nathalie; Niepceron, Alisson; Guabiraba, Rodrigo; Marc, Daniel; Eterradossi, Nicolas; Trapp, Sascha; Quéré, Pascale
Source:
Avian pathology 2019 v.48 no.2 pp. 121-134
ISSN:
1465-3338
Subject:
Eimeria tenella; Escherichia coli; Infectious bursal disease virus; Mardivirus; Protozoa; Toll-like receptor 3; agonists; bird diseases; chickens; cytokines; disease susceptibility; embryo (animal); endothelial cells; endothelium; host-pathogen relationships; immunoblotting; infectious diseases; innate immunity; interferon-alpha; interferon-gamma; mammals; models; pathogen-associated molecular patterns; pathogenesis; pathogens; quantitative polymerase chain reaction
Abstract:
... It is well established that the endothelium plays a prominent role in the pathogenesis of various infectious diseases in mammals. However, little is known about the role of endothelial cells (EC) as targets for avian pathogens and their contribution to the pathogenesis of infectious diseases in galliform birds. First, we explored the innate immune response of primary chicken aortic endothelial cel ...
DOI:
10.1080/03079457.2018.1556386

4. CT venography and pathological characterization of crus haemorrhage in Pekin ducks

Author:
Shi, Yao; Zhang, Yaru; Lin, Jiabao; Zhu, Xinyi; Xia, Zhaofei
Source:
Avian pathology 2019 v.48 no.2 pp. 148-156
ISSN:
1465-3338
Subject:
Pekin; blood coagulation; computed tomography; connective tissues; ducks; erythrocytes; hemorrhage; hindlimbs; histology; mitochondrial membrane; muscles; muscular diseases
Abstract:
... The crus haemorrhage is one of the main causes of carcass defects in Pekin duck processing houses. However, its pathologic features are currently unclear. In order to examine the injury to the hind limb veins and illustrate the pathologic characteristics of crus haemorrhage in Pekin ducks, a total of 68 Pekin ducks with crus haemorrhage (test group) and 10 unaffected ducks (control group) were col ...
DOI:
10.1080/03079457.2018.1559922

5. Dose-dependent differential resistance of inbred chicken lines to avian pathogenic Escherichia coli challenge

Author:
Alber, Andreas; Costa, Taiana; Chintoan-Uta, Cosmin; Bryson, Karen J.; Kaiser, Pete; Stevens, Mark P.; Vervelde, Lonneke
Source:
Avian pathology 2019 v.48 no.2 pp. 157-167
ISSN:
1465-3338
Subject:
Escherichia coli; antibacterial properties; bacterial colonization; chickens; dose response; inbred lines; leukocytes; lungs; models; serotypes; signs and symptoms (animals and humans); spleen; tissues
Abstract:
... Avian pathogenic E. coli (APEC) cause severe respiratory and systemic disease. To address the genetic and immunological basis of resistance, inbred chicken lines were used to establish a model of differential resistance to APEC, using strain O1 of serotype O1:K1:H7. Inbred lines 7₂, 15I and C.B12 and the outbred line Novogen Brown were inoculated via the airsac with a high dose (10⁷ colony-forming ...
DOI:
10.1080/03079457.2018.1562154

6. Early migration pattern of Avibacterium paragallinarum in the nasal passage of experimentally infected chicken and Japanese quail by immunohistochemistry

Author:
Balouria, Aadish; Deshmukh, Sidhartha; Banga, H. S.; Ahmad, Ajaz; Brar, R. S.; Sodhi, Sandeep
Source:
Avian pathology 2019 v.48 no.2 pp. 168-177
ISSN:
1465-3338
Subject:
Avibacterium paragallinarum; Coturnix japonica; antiserum; bacterial antigens; chickens; farmers; immunoelectrophoresis; immunohistochemistry; microorganisms; nasal cavity; pathogens; polyclonal antibodies; respiratory mucosa; swollen head syndrome; vaccines; virulence
Abstract:
... Infectious coryza (IC) is often a curse for poultry farmers when it occurs concurrently with several pathogens causing swollen head syndrome. The disease is caused by Avibacterium paragallinarum, which inflicts initial damage to the nasal and respiratory epithelium. This facilitates the progression of disease pathology across the nasal cavity, thereby providing a platform for multiplication of opp ...
DOI:
10.1080/03079457.2018.1562153

7. Induction of IBV strain-specific neutralizing antibodies and broad spectrum protection in layer pullets primed with IBV Massachusetts (Mass) and 793B vaccines prior to injection of inactivated vaccine containing Mass antigen

Author:
de Wit, J. J. (Sjaak); Malo, Aris; Cook, Jane K. A.
Source:
Avian pathology 2019 v.48 no.2 pp. 135-147
ISSN:
1465-3338
Subject:
abdomen; antibody formation; antigens; egg production; hens; inactivated vaccines; kidneys; live vaccines; neutralization; neutralizing antibodies; pathogens; peritonitis; pullets; vaccination; virulence; viruses
Abstract:
... In an initial study in specified pathogen free (SPF) chickens, a heterologous virus neutralizing (VN) antibody response to IBV variants Q1, Variant 2 (Var 2), D388/QX (D388), D274 and Arkansas (DPI) was observed using a vaccination programme incorporating two different live-attenuated IBV vaccines, followed by boosting with an inactivated vaccine containing IBV Massachusetts (Mass) antigen. Theref ...
DOI:
10.1080/03079457.2018.1556778

8. Recombinant Newcastle disease virus (NDV) La Sota expressing the haemagglutinin–neuraminidase protein of genotype VII NDV shows improved protection efficacy against NDV challenge

Author:
Bu, Ya-wen; Yang, Hui-ming; Jin, Ji-hui; Zhao, Jing; Xue, Jia; Zhang, Guo-zhong
Source:
Avian pathology 2019 v.48 no.2 pp. 91-97
ISSN:
1465-3338
Subject:
chickens; Newcastle disease; specific pathogen-free animals; chicken eggs; morbidity; vaccines; Avian orthoavulavirus 1; viruses; genotype; reverse genetics; vaccination; death; virulence; mortality
Abstract:
... Intensive vaccination strategies against Newcastle disease (ND) have been implemented in many countries for a long time, but ND outbreaks still occur frequently, with most isolates belonging to genotype VII of Newcastle disease virus (NDV). Many researchers have revealed that vaccines closely matched to epidemic viruses provide better protection. Therefore, using a previously established reverse g ...
DOI:
10.1080/03079457.2018.1548754

9. Spotlight on avian pathology: fowlpox virus

Author:
Giotis, Efstathios S.; Skinner, Michael A.
Source:
Avian pathology 2019 v.48 no.2 pp. 87-90
ISSN:
1465-3338
Subject:
Fowlpox virus; Reticuloendotheliosis virus; flocks; insects; mutation; pathogens; penetrance; phylogeny; poultry; risk; sequence analysis; serotypes; vaccination; viruses; wild birds
Abstract:
... Fowlpox virus is the type species of an extensive and poorly-defined group of viruses isolated from more than 200 species of birds, together comprising the avipoxvirus genus of the poxvirus family. Long known as a significant poultry pathogen, vaccines developed in the early and middle years of the twentieth century led to its effective eradication as a problem to commercial production in temperat ...
DOI:
10.1080/03079457.2018.1554893