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You searched for: Journal name Avian diseases Remove constraint Journal name: Avian diseases Publication year rev 7981-2019 Remove constraint Publication year rev: 7981-2019 Source 2019 v.63 no.3 Remove constraint Source: 2019 v.63 no.3
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1. Characterization of Virulent netB⁺/tpeL⁺Clostridium perfringens Strains from Necrotic Enteritis–Affected Broiler Chicken Farms

Author:
Changqin Gu; Hyun S. Lillehoj; Zhifeng Sun; Youngsub Lee; Hongyan Zhao; Zhezi Xianyu; Xianghe Yan; Yunfei Wang; Shudai Lin; Liheng Liu; Charles Li
Source:
Avian diseases 2019 v.63 no.3 pp. 461-467
ISSN:
0005-2086
Subject:
Clostridium perfringens; body weight changes; broiler chickens; etiology; high protein diet; models; necrotic enteritis; pathogenesis; poultry industry; quantitative polymerase chain reaction; toxins; virulence
Abstract:
... Clostridium perfringens (CP) type A and newly created type G strains are the key etiological factors in the induction of necrotic enteritis (NE), an important enteric disease that is responsible for the annual loss of $6 billion in the worldwide poultry industry. Several CP toxin genes were found to be critical in NE pathogenesis in chickens, but limited information is available on the CP lethal t ...
DOI:
10.1637/11973-092018-Reg.1

2. Characterization of an Outbreak of Infectious Coryza (Avibacterium paragallinarum) in Commercial Chickens in Central California

Author:
Manuela Crispo; Patrick Blackall; Aatif Khan; H. L. Shivaprasad; Kristin Clothier; C. Gabriel Sentíes-Cué; George Cooper; Julia Blakey; Maurice Pitesky; Grace Mountainspring; Gregg Cutler; Arthur Bickford; Simone Stoute
Source:
Avian diseases 2019 v.63 no.3 pp. 486-494
ISSN:
0005-2086
Subject:
Avibacterium paragallinarum; Escherichia coli; Gallibacterium anatis; Infectious bronchitis virus; Infectious bursal disease virus; Mycoplasma; Ornithobacterium rhinotracheale; animal health; biosecurity; food safety; immunization; minimum inhibitory concentration; necropsy; repetitive sequences; respiratory system; serotypes; tetracycline; California
Abstract:
... In 2017, the Turlock branch of the California Animal Health & Food Safety laboratory system received a significant increase in infectious coryza (IC) necropsy cases, with a total of 54 submissions originating from commercial broilers (n = 40), commercial layers (n = 11), and backyard chickens (n = 3). Layer flocks positive for IC were distributed within the adjacent counties of Merced and Stanisla ...
DOI:
10.1637/19-00081.1

3. Disarticulation-Associated Femoral Head Separation in Clinically Normal Broilers: Histologic Documentation of Underlying and Predisposing Cartilage Abnormalities

Author:
Floyd D. Wilson; Phil Stayer; Lanny W. Pace; Frederic J. Hoerr; Danny L. Magee
Source:
Avian diseases 2019 v.63 no.3 pp. 495-505
ISSN:
0005-2086
Subject:
cartilage; femur; growth plate; hemorrhage; histology; joints (animal); models; necropsy; necrosis; osteochondrosis; osteomyelitis; pathogenesis
Abstract:
... Routine and quantitative histologic studies on femoral head separation (FHS) associated with coxofemoral joint disarticulation at necropsy were conducted on 125 femoral heads collected from 21- to 50-day-old clinically normal broilers. The study compared groups demonstrating grossly detached femoral heads (DFHs) with those having attached femoral heads (AFHs). Marked microscopic lesions compatible ...
DOI:
10.1637/19-00090.1

4. Efficacy of Bivalent Inactivated Vaccine Containing Insect Cell–Expressed Avian Influenza H5 and Egg-Based Newcastle Disease Virus (NDV) Against Dual Infection with Highly Pathogenic H5N1 and Velogenic NDV in Chickens

Author:
Mahmoud Said; Mohamed A. Soliman; Saad Mousa; AbdelSatar Arafa; Hussein A. Hussein; Nadim Amarin; Egbert Mundt
Source:
Avian diseases 2019 v.63 no.3 pp. 474-480
ISSN:
0005-2086
Subject:
Avian orthoavulavirus 1; Baculoviridae; Influenza A virus; Newcastle disease; allantoic fluid; antibodies; avian influenza; chicken industry; eggs; evolution; genotype; hemagglutination; insects; vaccination; viruses; Egypt
Abstract:
... The genetic evolution of highly pathogenic avian influenza (HPAI) in Egypt has developed a new clade H5N1 (2.2.1.2) since 2014. Meanwhile, the new avian influenza virus (AIV) clade mutually with the velogenic Newcastle disease virus (NDV) isolate of genotype VII in Egypt (genotype VII) has resulted in severe economic losses in the broiler industry. An inactivated bivalent vaccine containing H5 (be ...
DOI:
10.1637/12017-122618-Reg.1

5. Health of Commercial Egg Laying Chickens in Different Housing Systems

Author:
Richard M. Fulton
Source:
Avian diseases 2019 v.63 no.3 pp. 420-426
ISSN:
0005-2086
Subject:
Newcastle disease; affordability; animal health; antibodies; aviaries; death; eggs; flocks; food safety; food service; hens; infectious bronchitis; keel bone; mortality; necropsy; oviposition; pododermatitis; research projects
Abstract:
... To determine which type of egg-laying hen housing was best for the chickens, the workers in those housing systems, the environment, and society based on food safety and affordability, a combined research project involving egg suppliers, food manufacturers, food service representatives, and food retailers, as well as research institutions and nongovernmental organizations, was performed. This study ...
DOI:
10.1637/11942-080618-Reg.1

6. Heterakis gallinarum, the Cecal Nematode of Gallinaceous Birds: A Critical Review

Author:
Katherine Lynn Cupo; Robert Byron Beckstead
Source:
Avian diseases 2019 v.63 no.3 pp. 381-388
ISSN:
0005-2086
Subject:
Heterakis; Histomonas meleagridis; anthelmintics; birds; eggs; intermediate hosts; ova; parasites; poultry; poultry industry; risk
Abstract:
... Heterakis gallinarum is a heavily prevalent poultry parasite that thrives in the ceca of various species of gallinaceous birds. It is a small roundworm, measuring between 4 and 15 mm long, in the family Heterakidae. Heterakis gallinarum has a direct life cycle not requiring an intermediate host to complete development, and it is generally believed that poultry raised at high density on litter are ...
DOI:
10.1637/0005-2086-63.3.381

7. An In Vitro Assay of Disinfectants on the Viability of Heterakis gallinarum Eggs

Author:
Katherine Lynn Cupo; Robert Byron Beckstead
Source:
Avian diseases 2019 v.63 no.3 pp. 511-513
ISSN:
0005-2086
Subject:
Heterakis; ambient temperature; birds; cell culture; diesel fuel; dyes; egg shell; limestone; poultry; poultry industry; viability
Abstract:
... Nematodes are widespread and common in poultry. Disinfectants are used to reduce infection rates in poultry houses, but there is little documentation of their effectiveness. An in vitro assay was developed to test the efficacy of products to damage Heterakis gallinarum eggs, and nine disinfectants and chemicals commonly used in the poultry industry were tested. Embryonated eggs of H. gallinarum we ...
DOI:
10.1637/11952-081418-ResNote.1

8. Lymphoproliferative Disease Virus in Wild Turkeys (Meleagris gallopavo) from Manitoba and Quebec, Canada

Author:
Amanda M. MacDonald; John R. Barta; Michelle McKay; Stéphane Lair; Rozenn Le Net; Frank Baldwin; Neil Pople; Nicole M. Nemeth
Source:
Avian diseases 2019 v.63 no.3 pp. 506-510
ISSN:
0005-2086
Subject:
DNA; Meleagris gallopavo; Reticuloendotheliosis virus; blood; genes; lymphatic diseases; mixed infection; monitoring; phylogeny; viruses; Manitoba; Ontario; Quebec
Abstract:
... This study describes the first recognized clinical case of lymphoproliferative disease virus (LPDV) in Canada and extends the range of LPDV in Canada through its detection in Manitoba and Quebec. We assessed the prevalence of LPDV in eastern wild turkeys (Meleagris gallopavo silvestris) with the use of whole, clotted blood from live birds in Manitoba (n = 65) and tissue samples collected postmorte ...
DOI:
10.1637/aviandiseases-D-19-00102

9. Occurrence and Relevance of Mycoplasma spp. in Racing and Ornamental Pigeons in Poland

Author:
A. Sawicka; G. Tomczyk; O. Kursa; T. Stenzel
Source:
Avian diseases 2019 v.63 no.3 pp. 468-473
ISSN:
0005-2086
Subject:
Mycoplasma columbinasale; Mycoplasma columbinum; Mycoplasma gallisepticum; Mycoplasma synoviae; health status; intergenic DNA; mycoplasmosis; Poland
Abstract:
... This report is one of the first studies describing the relationship between the occurrence of Mycoplasma spp. as regards the type of breed and health status of pigeons. The aim of the study was to evaluate the prevalence of Mycoplasma gallisepticum, Mycoplasma synoviae, Mycoplasma columbinum, Mycoplasma columborale, and Mycoplasma columbinasale in Polish populations of racing and ornamental pigeon ...
DOI:
10.1637/12018-122718-Reg.1

10. Outbreak of Systemic Avian Pox in Canaries (Serinus canaria domestica) Associated with the B1 Subgroup of Avian Pox Viruses

Author:
V. A. Ávila-Reyes; V. Díaz-Morales; F. Chávez-Maya; G. García-Espinosa; F. D. Sánchez-Godoy
Source:
Avian diseases 2019 v.63 no.3 pp. 525-530
ISSN:
0005-2086
Subject:
Aspergillus; Canarypox virus; DNA-directed DNA polymerase; Isospora; Serinus canaria; beak; chickens; dyspnea; edema; epithelium; genes; hyperplasia; molecular biology; mortality; necropsy; nucleotides; pneumonia; quarantine; sinusitis; spleen; splenomegaly; tracheitis; viruses; Europe
Abstract:
... This study reports an outbreak of avian pox in a quarantine of canaries imported from Europe, with a mortality of 30% and clinical signs of dyspnea and blepharoconjunctivitis. During necropsy, beak cyanosis, serous blepharitis, caseous sinusitis, oropharyngitis, tracheitis, pulmonary edema, pneumonia, fibrinous airsacculitis, and splenomegaly were observed. Microscopically, edema, epithelial hyper ...
DOI:
10.1637/12038-011819-Case.1

11. Partial Molecular Characterization and Pathogenicity Study of an Avian Reovirus Causing Tenosynovitis in Commercial Broilers

Author:
Manuela Crispo; Simone T. Stoute; Rüdiger Hauck; Sofia Egaña-Labrin; C. Gabriel Sentíes-Cué; George L. Cooper; Arthur A. Bickford; C. Corsiglia; H. L. Shivaprasad; Beate Crossley; Rodrigo A. Gallardo
Source:
Avian diseases 2019 v.63 no.3 pp. 452-460
ISSN:
0005-2086
Subject:
Avian orthoreovirus; body weight changes; feed conversion; genes; genetic variation; heart; inflammation; mortality; pathogenicity; phylogeny; seroconversion; specific pathogen-free animals; tenosynovitis; California
Abstract:
... This study describes the molecular characterization of avian reoviruses (ARVs) isolated during an outbreak in commercial chickens between 2015 and 2016. In addition, a pathogenicity study of a selected ARV strain isolated from a field case of viral tenosynovitis in commercial broiler chickens was performed. On the basis of phylogenetic analysis of a 1088-bp fragment of the ARV S1 gene, the investi ...
DOI:
10.1637/12013-121418-Reg.1

12. Use of Commercial Swine Live Attenuated Vaccine to Control an Erysipelothrix rhusiopathiae Outbreak in Commercial Cage-Free Layer Chickens

Author:
Rocio Crespo; Mark Bland; Tanja Opriessnig
Source:
Avian diseases 2019 v.63 no.3 pp. 520-524
ISSN:
0005-2086
Subject:
Erysipelothrix rhusiopathiae; Washington (state); agar; antigens; bacitracin; egg production; flocks; gels; genes; live vaccines; mortality; quantitative polymerase chain reaction; septicemia; serotypes; swine; vaccination
Abstract:
... Erysipelothrix rhusiopathiae septicemia was diagnosed in three cage-free commercial layer flocks from Washington State that experienced an increase in mortality and slight drop in egg production. Erysipelothrix rhusiopathiae was isolated from multiple organs and from environmental samples. An agar gel diffusion test of several E. rhusiopathiae isolates confirmed the presence of serotype 1b, and mu ...
DOI:
10.1637/12004-112118-Case.1

13. Wooden Breast in Commercial Broilers Associated with Mortality, Dorsal Recumbency, and Pulmonary Disease

Author:
Sesny Gall; M. Mitsu Suyemoto; Hannah M. L. Sather; A. Richard Sharpton; H. John Barnes; Luke B. Borst
Source:
Avian diseases 2019 v.63 no.3 pp. 514-519
ISSN:
0005-2086
Subject:
animal well-being; dyspnea; edema; flocks; males; meat quality; mortality; wooden breast
Abstract:
... Occurrence of mortality, wooden breast, and pulmonary disease in broiler chickens during the last 16 days of production in a teaching flock of 4000 commercial broilers was determined. A new syndrome was identified, in which broilers fell over for an unknown reason and were unable to right themselves (dorsal recumbency). Birds affected by dorsal recumbency were alert and responsive and showed no cl ...
DOI:
10.1637/11995-111218-Case.1

14. Antimicrobials Used for the Therapy of Necrotic Enteritis and Coccidiosis in Broiler Chickens and Turkeys in Canada, Farm Surveillance Results (2013–2017)

Author:
Agnes Agunos; Anne Deckert; David Léger; Sheryl Gow; Carolee Carson
Source:
Avian diseases 2019 v.63 no.3 pp. 433-445
ISSN:
0005-2086
Subject:
Clostridium perfringens; FoodNet (CDC); antibiotic resistance; bacitracin; biomass; broiler chickens; coccidiosis; coccidiostats; farms; ionophores; monitoring; necrotic enteritis; questionnaires; vaccination; virginiamycin; Canada
Abstract:
... Since 2013, the Canadian Integrated Program for Antimicrobial Resistance Surveillance (CIPARS) has collected antimicrobial use (AMU) and antimicrobial resistance data from sentinel broiler chicken flocks (Br, five provinces) and sentinel turkey flocks (Tk, one province 2013–2015, three provinces 2016–2017). The objectives of this paper were to describe various preventive strategies aimed at contro ...
DOI:
10.1637/11971-091718-Reg.1

15. Bayesian Phylogenetic Analysis of Avipoxviruses from North American Wild Birds Demonstrates New Insights into Host Specificity and Interspecies Transmission

Author:
Amanda M. MacDonald; Daniel J. Gibson; John R. Barta; Rebecca Poulson; Justin D. Brown; Andrew B. Allison; Nicole M. Nemeth
Source:
Avian diseases 2019 v.63 no.3 pp. 427-432
ISSN:
0005-2086
Subject:
Avipoxvirus; Corvus brachyrhynchos; Meleagris gallopavo; Zenaida macroura; disease transmission; fowl pox; genes; genetic variation; genotyping; host range; host specificity; hosts; monophyly; wild birds; Canada
Abstract:
... Avian pox is commonly diagnosed in a variety of North American wild and domestic birds, yet little is known about the evolutionary relationships among the causative poxviruses. This study aimed to determine the phylogenetic relationships among isolates identified in different avian host species to better characterize the host range of specific viral strains and compare the genetic variability with ...
DOI:
10.1637/12023-010619-Reg.1

16. Detection and Molecular Characterization of Two Genotypes of Goose Parvoviruses Isolated from Growing Period Geese and Cherry Valley Ducks in China

Author:
Delong Li; Ludan Zhang; Sihuai Chen; Jiulomg Gu; Mengjian Ding; Jixiang Li
Source:
Avian diseases 2019 v.63 no.3 pp. 411-419
ISSN:
0005-2086
Subject:
Anseriform dependoparvovirus 1; amino acids; beak; dwarfing; genetic variation; industry; mules; pathogens; phylogeny; sequence alignment; terminal repeat sequences; trees; virulence; viruses; waterfowl; China
Abstract:
... Goose parvovirus (GPV) is the etiologic pathogen of Derzsy's disease, causing great economic losses in the waterfowl industry. A novel GPV-related virus (NGPV), which caused short beak and dwarfism syndrome, has occurred in China since 2015. In this study, two GPV strains (RC45 and RC70) were isolated from diseased growing period geese (45 days old and 70 days old), and one NGPV strain GXN45 was i ...
DOI:
10.1637/12015-121818-Reg.1

17. Experimental Infection and Transmission of Newcastle Disease Vaccine Virus in Four Wild Passerines

Author:
Andrea J. Ayala; Sonia M. Hernandez; Timothy L. Olivier; Catherine N. Welch; Kiril M. Dimitrov; Iryna V. Goraichuk; Claudio L. Afonso; Patti J. Miller
Source:
Avian diseases 2019 v.63 no.3 pp. 389-399
ISSN:
0005-2086
Subject:
Avian orthoavulavirus 1; Cardinalis cardinalis; Carpodacus mexicanus; Molothrus ater; Newcastle disease; White Leghorn; adults; antibodies; antibody formation; blood; chickens; cloaca; drinking water; hemagglutination; live vaccines; monitoring; reverse transcriptase polymerase chain reaction; signs and symptoms (animals and humans); specific pathogen-free animals; viral shedding; viruses; wild birds
Abstract:
... Our prior work has shown that live poultry vaccines have been intermittently isolated from wild birds sampled during field surveillance studies for Newcastle disease virus (NDV). Thus, we experimentally investigated the susceptibility of four native agriculturally associated wild bird species to the NDV LaSota vaccine and evaluated the shedding dynamics, potential transmission from chickens, and h ...
Handle:
10113/6743214
DOI:
10.1637/11980-092918-Reg.1

18. Histopathologic Changes, Ultrastructure, and Molecular Characterization of an Adenovirus in a Sun Conure (Aratinga solstitialis)

Author:
N. L. Gottdenker; C. R. Gregory; M. B. Ard; W. W. Lorenz; R. A. Nilsen; B. W. Ritchie
Source:
Avian diseases 2019 v.63 no.3 pp. 531-538
ISSN:
0005-2086
Subject:
Adenoviridae; RNA; birds; capsid; case studies; complementary DNA; death; electron microscopy; fibroblasts; hepatocytes; histology; histopathology; hybridization; necrosis; spleen; ultrastructure
Abstract:
... In this case report, we describe the pathologic changes and the ultrastructural and molecular characteristics of an adenovirus in a sun conure (Aratinga solstitialis) that presented with a history of sudden death. On histologic examination, there was multifocal hepatic and splenic necrosis. Within some hepatocytes and unidentified cells in the spleen, renal interstitial fibroblasts, and ovarian st ...
DOI:
10.1637/aviandiseases-D-19-00080

19. Longitudinal Study on Causes of Mortality in Danish Broiler Breeders

Author:
Ida Cecilie Naundrup Thøfner; Louise Ladefoged Poulsen; Magne Bisgaard; Henrik Christensen; Rikke Heidemann Olsen; Jens Peter Christensen
Source:
Avian diseases 2019 v.63 no.3 pp. 400-410
ISSN:
0005-2086
Subject:
Escherichia coli; arthritis; death; endocarditis; etiology; longitudinal studies; mortality; peritonitis; poultry production; progeny; risk; salpingitis; slaughter
Abstract:
... Broiler production is highly dependent on good health in the parent flocks. The so-called normal mortality in these flocks remains to be addressed to further reduce mortality of the breeders and to improve the quality of broilers. The aim of the present study, therefore, was to investigate the etiology of this breeder mortality to map out possible critical periods during production in relation to ...
DOI:
10.1637/12006-113018-Reg.1

20. Molecular Characterization and Comparative Pathogenicity of Goose Parvovirus Isolated from Jilin Province, Northeast China

Author:
Yu-Qing Yan; Tian-Qi He; Rui Li; Shu-Ya Zhang; Kai Wang; Shu-Shuai Yi; Jiang-Ting Niu; Hao Dong; Gui-Xue Hu
Source:
Avian diseases 2019 v.63 no.3 pp. 481-485
ISSN:
0005-2086
Subject:
Anseriform dependoparvovirus 1; Muscovy; amino acids; genes; histopathology; immune response; mutation; phylogeny; viral proteins; virulence; China
Abstract:
... Goose parvovirus (GPV) is a highly contagious disease caused by GPV in goslings and young Muscovy ducklings. In recent years, frequent GPV outbreaks have occurred in many regions of Jilin Province, China. In this study, to understand the immune-related characteristics of the currently prevailing GPV strains in some regions of Jilin Province, six GPV strains were isolated from six different regions ...
DOI:
10.1637/aviandiseases-D-19-00075