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1. Pathogenesis and host responses in lungs and kidneys following Canadian 4/91 infectious bronchitis virus (IBV) infection in chickens

Author:
Shahnas M. Najimudeen; Catalina Barboza-Solis; Ahmed Ali; Sabrina M. Buharideen; Ishara M. Isham; Mohamed S.H. Hassan; Davor Ojkic; Guido Van Marle; Susan C. Cork; Frank van der Meer; Martine Boulianne; Mohamed Faizal Abdul-Careem
Source:
Virology 2022 v.566 no. pp. 75-88
ISSN:
0042-6822
Subject:
specific pathogen-free animals,   etc   ; Infectious bronchitis virus; chickens; histology; kidneys; lungs; pathogenesis; virology; Canada;     Show all 9 Subjects
Abstract:
... The infectious bronchitis virus (IBV) 4/91 was one of the common IBV variants isolated in Eastern Canada between 2013 and 2017 from chicken flocks showing severe respiratory and production problems. We designed an in vivo experiment, using specific pathogen free (SPF) chickens, to study the pathogenesis of, and host response to, Canadian (CAN) 4/91 IBV infection. At one week of age, the chickens w ...
DOI:
10.1016/j.virol.2021.11.013

2. Mass artificial incubation of redclaw crayfish eggs in a recirculating mechanical pulling device

Author:
Shun Cheng; Yong‐chun Wei; Mei‐li Chi; Fei Li; Jian‐bo Zheng; Shi‐li Liu; Yong‐yi Jia; Yi‐nuo Liu; Zhi‐min Gu; Dan‐li Wang; Li‐hui Sun
Source:
Aquaculture research 2022 v.53 no.7 pp. 2923-2929
ISSN:
1355-557X
Subject:
specific pathogen-free animals,   etc   ; Cherax quadricarinatus; aquaculture; eggs; eyes; formaldehyde; research; survival rate; water temperature;     Show all 9 Subjects
Abstract:
... To solve the problems involved in the mass artificial incubation of redclaw crayfish eggs, we developed a recirculating mechanical pulling device to explore the technology of artificial incubation, including the egg stages, egg densities, attachments and incubator sizes. The eggs were separated and sterilized with 3000 ppm formaldehyde, and the water temperature was 28–29°C. The results were obtai ...
DOI:
10.1111/are.15807

3. Genetic and pathogenic characteristics of a novel infectious bronchitis virus strain in genogroup VI (CK/CH/FJ/202005)

Author:
Chen-yan Wang; Zhong-bao Luo; Guo-qing Shao; Bo Hou
Source:
Veterinary microbiology 2022 v.266 pp. 109352
ISSN:
0378-1135
Subject:
specific pathogen-free animals,   etc   ; Infectious bronchitis virus; air; histopathology; pathogenicity; poultry industry; viral load; viruses; China;     Show all 9 Subjects
Abstract:
... Infectious bronchitis virus (IBV) has a significant impact on the poultry industry, and genogroup VI (GVI) IBVs, such as the TC07−2 strain, were reported in China since 2007. We isolated a novel strain, CK/CH/FJ/202005 (henceforth 202005), from broilers that were vaccinated with different attenuated IBV strains (H120, 4/91, or QX) in Fujian, China during 2020. Based on comparison with the SNU8065 ...
DOI:
10.1016/j.vetmic.2022.109352

4. Domestic poultry are not susceptible to avian-origin H3N2 subtype canine influenza A virus

Author:
Pei Zhou; Bo Chen; Xinkai Hu; Xiangyu Xiao; Ruohan Liu; Shoujun Li
Source:
Veterinary microbiology 2022 v.272 pp. 109501
ISSN:
0378-1135
Subject:
specific pathogen-free animals,   etc   ; Influenza A virus; chickens; cloaca; dogs; eggs; evolution; pathogenicity; seroconversion; viruses; China;     Show all 11 Subjects
Abstract:
... At present, avian-origin H3N2 subtype canine influenza virus (H3N2 CIV) is prevalent in East Asian and North American countries. The host tropism of H3N2 CIV to mammals, including mice, guinea pigs, ferrets, and pigs, has been evaluated. However, it has not previously been determined whether avian-origin H3N2 CIV can be transmitted back to birds. In China, ducks, chickens, geese, pigeons, and quai ...
DOI:
10.1016/j.vetmic.2022.109501

5. Pathogenicity comparison between QX-type and Mass-type infectious bronchitis virus to different segments of the oviducts in laying phase

Author:
Xiaorong Zhang; Kun Yan; Chengcheng Zhang; Mengjiao Guo; Shuqin Chen; Kai Liao; Zongyi Bo; Yongzhong Cao; Yantao Wu
Source:
Virology journal 2022 v.19 no.1 pp. 62
ISSN:
1743-422X
Subject:
specific pathogen-free animals,   etc   ; Infectious bronchitis virus; chicken industry; collagen; cytokines; cytotoxicity; genotype; oviducts; pathogenicity; virology; Massachusetts;     Show all 11 Subjects
Abstract:
... BACKGROUND: The QX-type infectious bronchitis virus (IBV) has become the predominant genotype worldwide in recent years and has caused serious economic losses to the chicken industry. The most significant feature of QX IBV is that its infection in the early growing stage can cause abnormal oviduct development, resulting in a high proportion of ‘false layers’ in poultry flocks of laying hens and br ...
DOI:
10.1186/s12985-022-01788-0

6. Evaluation of cell-mediated immunity of E.coli nanovaccines in chickens

Author:
Wafaa R. Abd El-Aziz; Hazem. M. Ibrahim; Heba Elsayed Elzorkany; Gina M. Mohammed; Christine A. Mikhael; Nada A. Fathy; Hisham A. Elshoky
Source:
Journal of immunological methods 2022 v.506 pp. 113280
ISSN:
0022-1759
Subject:
specific pathogen-free animals,   etc   ; Escherichia coli; antibodies; antigens; chitosan; immune response; lymphocyte proliferation; poultry production; risk; serotypes; vaccines;     Show all 11 Subjects
Abstract:
... Nanovaccine is a revolutionary type of immunizations for various diseases that is simple to manufacture and administer. As a result, we are working to develop innovative nanovaccines against E. coli, which is capable of causing disease both inside and outside of its predilection sites, causing respiratory and systemic disease (colibacillosis).Colibacillosis is a global disease that significantly a ...
DOI:
10.1016/j.jim.2022.113280

7. Tissue Colonization and Egg and Environmental Contamination Associated with the Experimental Infection of Cage-Free Laying Hens with Salmonella Braenderup

Author:
Javier S. Garcia; Richard K. Gast; Jean Y. Guard; Darrin M. Karcher; Deana Jones
Source:
Avian diseases 2022 v.66 no.1 pp. 74-78
ISSN:
0005-2086
Subject:
specific pathogen-free animals,   etc   ; Salmonella Braenderup; egg industry; eggs; human diseases; liver; nest boxes; oviducts; pollution; serotypes; spleen;     Show all 11 Subjects
Abstract:
... In 2018, a national recall of shell eggs in the United States occurred due to human illness caused by Salmonella Braenderup. Although previous studies have identified Salmonella Braenderup in laying hens and the production environment, little is known about the ability of this Salmonella serovar to infect laying hens and contaminate eggs. The objective of this study was to examine the invasiveness ...
DOI:
10.1637/21-00091

8. Genetic diversity and pathogenicity of novel chicken astrovirus in China

Author:
Qingdong Luan; Yijun Han; Yanbo Yin; Jianlin Wang
Source:
Avian pathology 2022 v.51 no.5 pp. 488-498
ISSN:
1465-3338
Subject:
specific pathogen-free animals,   etc   ; Chicken astrovirus; chickens; chicks; genetic variation; genome; gout; kidneys; liver; mortality; pathogenicity; pericardium; phylogeny; China;     Show all 14 Subjects
Abstract:
... Five novel chicken astrovirus (CAstV) strains, designated ZDF, MHC, WSC, WSW and MHW, were successfully isolated from chickens with gout, and were subjected to full genome sequencing characterization and tested for their pathogenic effects in specific pathogen-free (SPF) chicken embryos and chickens. The complete genomes of the five isolated strains were approximately 7436 nt to 7511 nt in length. ...
DOI:
10.1080/03079457.2022.2102966

9. Rederivation of a mutant line (prop 1) of zebrafish Danio rerio infected with Pseudoloma neurophilia using in vitro fertilization with eggs from pathogen‐free wild‐type (AB) females and sperm from prop 1 males

Author:
Bianca H. Ventura Fernandes; Caroline Caetano da Silva; Debora Bissegato; Michael L. Kent; Luciani R. Carvalho
Source:
Journal of fish diseases 2022 v.45 no.1 pp. 35-39
ISSN:
0140-7775
Subject:
specific pathogen-free animals,   etc   ; Danio rerio; disinfection; equipment; fish; heterozygosity; homozygosity; mutants; parasites; pathogens; quality of life; spermatozoa; toxicology;     Show all 13 Subjects
Abstract:
... Along with the growing number of laboratories that work with zebrafish (Danio rerio), it is necessary to have animals with good sanitary quality. Specific pathogens can interfere with the experimental results and in the life quality of the animals. Pseudoloma neurophilia is a parasite with high potential for interference in behavioural, morphology, toxicological and genetic research, and is very c ...
DOI:
10.1111/jfd.13529

10. Distribution of Infectious Bronchitis Virus Resistance in a Naïve Chicken Population

Author:
Olivia Lockyear; Cassandra Breedlove; Kellye Joiner; Haroldo Toro
Source:
Avian diseases 2022 v.66 no.1 pp. 101-105
ISSN:
0005-2086
Subject:
specific pathogen-free animals,   etc   ; Gallus gallus; Infectious bronchitis virus; RNA; White Leghorn; chickens; infectious bronchitis; viral load; virulence; viruses; Arkansas;     Show all 11 Subjects
Abstract:
... Resistance to infectious bronchitis (IB) is a polygenic trait, but little is known about how resistance distributes in the host population. In this study, a relatively large number (n = 369) of specific-pathogen-free white leghorn chickens (Gallus gallus) were challenged with an Arkansas -type virulent IB virus (IBV), and resistance was evaluated 5 days after challenge by viral load (IBV RNA) in t ...
DOI:
10.1637/21-00092

11. Experimental infection of specific-pathogen-free domestic lambs with Mycoplasma ovipneumoniae causes asymptomatic colonization of the upper airways that is resistant to antibiotic treatment

Author:
Thea Johnson; Kerri Jones; B. Tegner Jacobson; Julia Schearer; Noah Adams; Isaak Thornton; Cassie Mosdal; Steven Jones; Mark Jutila; Agnieszka Rynda-Apple; Thomas Besser; Diane Bimczok
Source:
Veterinary microbiology 2022 v.265 pp. 109334
ISSN:
0378-1135
Subject:
specific pathogen-free animals,   etc   ; Mycoplasma ovipneumoniae; Ovis aries; Ovis canadensis; antibiotics; antibody formation; gamithromycin; inflammation; lungs; microbiology; nose; pathogens; pneumonia;     Show all 13 Subjects
Abstract:
... Mycoplasma ovipneumoniae (M. ovipneumoniae) is a respiratory pathogen associated with mild to moderate respiratory disease in domestic lambs and severe pneumonia outbreaks in wild ruminants such as bighorn sheep. However, whether M. ovipneumoniae by itself causes clinical respiratory disease in domestic sheep in the absence of secondary bacterial pathogens is still unclear. The goal of our study w ...
DOI:
10.1016/j.vetmic.2022.109334
CHORUS:
10.1016/j.vetmic.2022.109334

12. Effect of temperature on transfer of Midichloria-like organism and development of red mark syndrome in rainbow trout (Oncorhynchus mykiss)

Author:
Massimo Orioles; Marco Galeotti; Elena Saccà; Michela Bulfoni; Mirco Corazzin; Serena Bianchi; Diana Torge; Guido Macchiarelli; Gian Enrico Magi; Jacob Gunther Schmidt
Source:
Aquaculture 2022 v.560 pp. 738577
ISSN:
0044-8486
Subject:
specific pathogen-free animals,   etc   ; DNA; Oncorhynchus mykiss; aquaculture; diagnostic techniques; droplets; etiological agents; farms; fish; histology; spleen; temperature; transmission electron microscopy;     Show all 13 Subjects
Abstract:
... Red mark syndrome (RMS) is a skin disease of rainbow trout (Oncorhynchus mykiss), believed to be bacterial and caused by a Midichloria-like organism (MLO). Based on reports from farm sites, clinical signs of RMS are not observed above 15–16 °C. Here we describe the onset and progression of RMS at different temperatures under controlled experimental settings. Nine 180 L tanks at 12 °C, 15.5 °C and ...
DOI:
10.1016/j.aquaculture.2022.738577

13. Experimental infection of Toxoplasma gondii in specific pathogen-free and commercial broiler chicks

Author:
Xiao Chen; Junpeng Chen; Qianqian Tan; Jinxuan Li; Xiaomei Liu; Qianqian Xiao; Hongmei Li; Xiaomin Zhao; Xiao Zhang
Source:
Comparative immunology, microbiology, and infectious diseases 2022 pp. 101890
ISSN:
0147-9571
Subject:
specific pathogen-free animals,   etc   ; DNA; Protozoa; Toxoplasma gondii; anorexia; body temperature; chicks; immunology; microbiology; parasites; pathogenicity; spleen; tachyzoites; toxoplasmosis; weight gain;     Show all 15 Subjects
Abstract:
... Toxoplasma gondii is an intracellular protozoan parasite that infects most warm-blooded animals, including humans, and causes toxoplasmosis. In this study, the pathogenicity of RH strain of T. gondii in broiler chicks was investigated and the susceptible tissues of chicks were clarified. Fourteen-day-old broiler chicks were injected intraperitoneally with 1×10⁷, 1×10⁶, and 1×10⁵ tachyzoites of T. ...
DOI:
10.1016/j.cimid.2022.101890

14. Characterization and pathogenicity of a naturally reassortant and recombinant infectious bursal disease virus in China

Author:
Xufei Feng; Ning Zhu; Yongqiu Cui; Lei Hou; Jianwei Zhou; Yonghui Qiu; Xiaoyu Yang; Changzhe Liu; Dedong Wang; Jinshuo Guo; Tong Sun; Yongyan Shi; Nan Han; Meilan Mo; Jue Liu
Source:
Transboundary and emerging diseases 2022 v.69 no.4 pp. e746
ISSN:
1865-1674
Subject:
specific pathogen-free animals,   etc   ; Infectious bursal disease virus; atrophy; genetic recombination; genomics; immunosuppression; infectious bursal disease; necrosis; pathogens; skeleton; vaccines; virulence; China;     Show all 13 Subjects
Abstract:
... Infectious bursal disease virus (IBDV), an Avibirnavirus, is the pathogen of infectious bursal disease, which is a severely immunosuppressive disease in 3–15‐week‐old chickens. Different phenotypes of IBDV, including classical, variant, very virulent (vv) and attenuated IBDV, have been reported in many chicken‐rearing countries worldwide. Here, we isolated and identified a naturally reassortant an ...
DOI:
10.1111/tbed.14347

15. Tracheal cellular immune response in chickens inoculated with Mycoplasma synoviae vaccine, MS-H or its parent strain 86079/7NS

Author:
Oluwadamilola S. Omotainse; Nadeeka K. Wawegama; Sathya N. Kulappu Arachchige; Mauricio J. C. Coppo; Paola K. Vaz; Andrew P. Woodward; Somayeh Kordafshari; Mirjana Bogeski; Mark Stevenson; Amir H. Noormohammadi; Andrew W. Stent
Source:
Veterinary immunology and immunopathology 2022 v.251 pp. 110472
ISSN:
0165-2427
Subject:
specific pathogen-free animals,   etc   ; Mycoplasma synoviae; cell-mediated immunity; immunopathology; interleukin-17; light microscopy; live vaccines; macrophages; mucosa; respiratory tract diseases; vaccination;     Show all 11 Subjects
Abstract:
... Mycoplasma synoviae causes respiratory tract disease in chickens characterised by mild to moderate lymphoplasmacytic infiltration of the tracheal mucosa. MS-H (Vaxsafe1 MS, Bioproperties Pty Ltd.) is an effective live attenuated vaccine for M. synoviae, but the immunological basis for its mechanism of protection has not been investigated, and the phenotypes of lymphocytes and associated cytokines ...
DOI:
10.1016/j.vetimm.2022.110472

16. Development of an ELISA Method to Differentiate Animals Infected with Wild-Type African Swine Fever Viruses and Attenuated HLJ/18-7GD Vaccine Candidate

Author:
Lulu Wang; Dan Fu; Weldu Tesfagaber; Fang Li; Weiye Chen; Yuanmao Zhu; Encheng Sun; Wan Wang; Xijun He; Yu Guo; Zhigao Bu; Dongming Zhao
Source:
Viruses 2022 v.14 no.8 pp. -
ISSN:
1999-4915
Subject:
specific pathogen-free animals,   etc   ; African swine fever; blood serum; cross reaction; diagnostic sensitivity; diagnostic techniques; immunization; industry; live vaccines; serodiagnosis; swine; virulence; viruses; China;     Show all 14 Subjects
Abstract:
... African swine fever (ASF) is a highly contagious hemorrhagic disease of pigs, posing a significant threat to the world pig industry. Several researchers are investigating the possibilities for developing a safe and efficient vaccine against ASF. In this regard, significant progress has been made and some gene-deleted ASFVs are reported as potential live attenuated vaccines. A seven-gene-deleted li ...
DOI:
10.3390/v14081731

17. Evaluation of cellular and humoral immune response in chickens immunized with flagellin-adjuvanted inactivated newcastle disease virus

Author:
Masoumeh Bagheri; Mohammad-Hosein Khani; Azadeh Zahmatkesh; Maryam Barkhordari; Mohammad Majid Ebrahimi; Esmaeel Asli; Shahla Shahsavandi; Seyed Reza Banihashemi; Parvaneh Esmaeilnejad-Ahranjani; Soheila Moradi Bidhendi
Source:
Comparative immunology, microbiology, and infectious diseases 2022 v.85 pp. 101796
ISSN:
0147-9571
Subject:
specific pathogen-free animals,   etc   ; Avian orthoavulavirus 1; adjuvants; antibodies; antibody formation; bursa of Fabricius; flagellin; flow cytometry; humoral immunity; immunophenotyping; microbiology; phosphates; spleen; vaccines;     Show all 14 Subjects
Abstract:
... The aim of the present study was to evaluate the potential effect of flagellin as adjuvant in Newcastle disease virus (NDV) vaccine on the cellular and humoral immunity in chickens. Fifty-six specific pathogen-free chickens were assigned to seven groups of eight chickens and immunized twice with a two-week interval, intramuscularly. Group 1, received phosphate buffered saline as control (C), group ...
DOI:
10.1016/j.cimid.2022.101796

18. Effects of Clostridium butyricum on intestinal environment and gut microbiome under Salmonella infection

Author:
Xuesong Zhang; Mengze Song; Penghao Lv; Guijuan Hao; Shuhong Sun
Source:
Poultry science 2022 v.101 no.11 pp. 102077
ISSN:
0032-5791
Subject:
specific pathogen-free animals,   etc   ; Clostridium butyricum; Salmonella Enteritidis; cecum; chicks; drug resistance; epithelium; histopathology; hypoxia; interleukin-6; intestinal microorganisms; liver; poultry; probiotics; salmonellosis; spleen;     Show all 16 Subjects
Abstract:
... Salmonellosis causes massive economic losses globally every year. Especially in poultry, numerous drug-resistant bacteria have emerged; thus, it is imperative to find alternatives to antibiotics. As a probiotic, Clostridium butyricum (C. butyricum) provides the latest strategy for inhibiting the proliferation of Salmonella. This study aimed to evaluate the effects of C. butyricum on intestinal env ...
DOI:
10.1016/j.psj.2022.102077

19. Isolation, identification and genome analysis of an avian hepatitis E virus from white-feathered broilers in China

Author:
Yawen Zhang; Hui Zhao; Zengna Chi; Zhizhong Cui; Shuang Chang; Yixin Wang; Peng Zhao
Source:
Poultry science 2022 v.101 no.3 pp. 101633
ISSN:
0032-5791
Subject:
specific pathogen-free animals,   etc   ; Orthohepevirus B; capsid; flocks; fluorescent antibody technique; genome; genotype; hemorrhage; intravenous injection; liver; models; pathogens; sequence analysis; spleen; viruses; China;     Show all 16 Subjects
Abstract:
... Avian hepatitis E virus (HEV) is the major causative pathogen of the big liver and spleen disease, hepatitis-splenomegaly syndrome, and hepatic rupture hemorrhage syndrome. Until now, there are 6 different avian HEV genotypes that infect chickens have been reported worldwide. Epidemiologic investigations of the avian HEV demonstrated that avian HEV has been widely spread in China in recent years. ...
DOI:
10.1016/j.psj.2021.101633

20. Gut Microbiota as a Novel Tool to Dissect the Complex Structures of Black Tea Polymers

Author:
Weixin Wang; Christina Ohland; Christian Jobin; Shengmin Sang
Source:
Journal of agricultural and food chemistry 2022 v.70 no.16 pp. 5005-5014
ISSN:
1520-5118
Subject:
specific pathogen-free animals,   etc   ; bioavailability; biodegradation; black tea; chemical degradation; circulatory system; depolymerization; flavanols; food chemistry; intestinal microorganisms; intestines; metabolism; metabolites; metabolomics; proanthocyanidins; theaflavins; urine;     Show all 17 Subjects
Abstract:
... Thearubigins, polymers of tea catechins, account for more than 20% of the black tea polyphenols and have been reported to be the active components in black tea. However, the chemical structures and underlying mechanisms regarding how the thearubigins, being poorly bioavailable, generate in vivo health benefits are still largely unknown. Using germ-free and specific pathogen-free husbandry conditio ...
DOI:
10.1021/acs.jafc.2c00995