Oscar J Fletcher

Works (23)

Updated: August 12th, 2023 21:15
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2023 article

Mucosal and systemic lymphoid immune responses against Clostridium perfringens strains with variable virulence in the production of necrotic enteritis in broiler chickens

Kulkarni, R. R., Gaghan, C., Gorrell, K., & Fletcher, O. J. (2023, January 26). AVIAN PATHOLOGY, Vol. 1.

By: R. Kulkarni  n, C. Gaghan n, K. Gorrell n & O. Fletcher n

co-author countries: United States of America 🇺🇸
author keywords: Necrotic enteritis; Clostridium perfringens; chickens; immune response; virulence; cytokines; pathogenesis
MeSH headings : Animals; Clostridium perfringens / genetics; Clostridium Infections / veterinary; Chickens; Virulence; Enteritis / veterinary; Poultry Diseases / pathology; Immunity; Anti-Inflammatory Agents / metabolism
Sources: Web Of Science, ORCID
Added: March 13, 2023

2022 journal article

Image analysis for Eimeria oocyst counts and classification

JOURNAL OF APPLIED POULTRY RESEARCH, 31(3).

By: D. Adams  n, F. Ruiz-Jimenez n, O. Fletcher n, S. Gall n & R. Crespo n 

co-author countries: United States of America 🇺🇸
author keywords: imageJ; Eimeria; coccidiosis; oocyst; chicken
Sources: Web Of Science, ORCID
Added: June 20, 2022

2020 journal article

Histomoniasis outbreaks in commercial turkeys in the southeastern United States: Proximity of broiler breeder farms as a potential risk factor in disease development

JOURNAL OF APPLIED POULTRY RESEARCH, 29(2), 496–501.

By: R. Jones, D. Rives*, O. Fletcher* & M. Martin*

co-author countries: United States of America 🇺🇸
author keywords: Histomonas meleagridis; histomoniasis; blackhead disease; turkeys; broiler breeders; epidemiology; risk factors
Source: Web Of Science
Added: August 3, 2020

2019 journal article

Effect of a direct-fed microbial and prebiotic on performance and intestinal histomorophology of turkey poults challenged with Salmonella and Campylobacter

POULTRY SCIENCE, 98(12), 6572–6578.

By: S. Rahimi *, S. Kathariou n, O. Fletcher n & J. Grimes n

co-author countries: Iran (Islamic Republic of) 🇮🇷 United States of America 🇺🇸
author keywords: direct-fed microbial; mannanoligosaccharide; Salmonella; Campylobacter; poult
MeSH headings : Animal Feed / analysis; Animal Nutritional Physiological Phenomena; Animals; Bacterial Shedding / drug effects; Campylobacter / drug effects; Campylobacter Infections / drug therapy; Campylobacter Infections / veterinary; Diet / veterinary; Feces / microbiology; Female; Gastrointestinal Microbiome / drug effects; Intestines / drug effects; Intestines / physiology; Poultry Diseases / drug therapy; Prebiotics / administration & dosage; Probiotics / pharmacology; Random Allocation; Salmonella / drug effects; Salmonella Infections, Animal / drug therapy; Turkeys / growth & development; Turkeys / physiology
Source: Web Of Science
Added: January 13, 2020

2017 journal article

Chemoprevention of spontaneous ovarian cancer in the domestic hen

Poultry Science, 96(6), 1901–1909.

By: E. Mocka n, R. Stern n, O. Fletcher n, K. Anderson n , J. Petitte n  & P. Mozdziak n 

co-author countries: United States of America 🇺🇸
author keywords: avian; CP-31398; oviduct; ovarian; cancer
MeSH headings : Adenocarcinoma / prevention & control; Adenocarcinoma / veterinary; Animal Feed / analysis; Animals; Chemoprevention / veterinary; Chickens; Diet / veterinary; Female; Genes, p53 / drug effects; Genital Neoplasms, Female / prevention & control; Genital Neoplasms, Female / veterinary; Ovarian Neoplasms / prevention & control; Ovarian Neoplasms / veterinary; Oviducts / pathology; Oviposition; Pyrimidines / administration & dosage; Pyrimidines / pharmacology
Sources: Web Of Science, ORCID, Crossref
Added: August 6, 2018

2017 journal article

Evaluation of factors influencing the development of late Marek's disease virus-induced immunosuppression: virus pathotype and host sex

AVIAN PATHOLOGY, 46(4), 376–385.

By: N. Faiz n, A. Cortes n, J. Guy n , O. Fletcher n, T. Cimino & I. Gimeno n 

co-author countries: Malaysia 🇲🇾 United States of America 🇺🇸
author keywords: MDV; ILTV; immunosuppression; pathotype; host sex
MeSH headings : Animals; Chickens; Female; Gene Expression Regulation / immunology; Male; Mardivirus / classification; Marek Disease / immunology; Marek Disease / prevention & control; Marek Disease / virology; MicroRNAs / genetics; MicroRNAs / metabolism; Sex Factors; Specific Pathogen-Free Organisms; Viral Vaccines / immunology
Sources: Web Of Science, ORCID
Added: August 6, 2018

2016 journal article

Dietary toxicity of soluble and insoluble molybdenum to northern bobwhite quail (Colinus virginianus)

ECOTOXICOLOGY, 25(2), 291–301.

By: J. Stafford, C. Lambert, J. Zyskowski*, C. Engfehr*, O. Fletcher n, S. Clark*, A. Tiwary*, C. Gulde*, B. Sample

co-author countries: United States of America 🇺🇸
author keywords: Avian; Dietary toxicity; Molybdenum; NOAEC
MeSH headings : Animals; Colinus / growth & development; Colinus / metabolism; Disulfides / toxicity; Feeding Behavior / drug effects; Female; Longevity / drug effects; Male; Molybdenum / toxicity; Soil Pollutants / toxicity; Weight Gain / drug effects
Source: Web Of Science
Added: August 6, 2018

2016 journal article

Early infection with Marek's disease virus can jeopardize protection conferred by laryngotracheitis vaccines: a method to study MDV-induced immunosuppression

AVIAN PATHOLOGY, 45(6), 606–615.

By: N. Faiz n, A. Cortes n, J. Guy n , O. Fletcher n, M. West n, E. Montiel, I. Gimeno n 

co-author countries: United States of America 🇺🇸
author keywords: Marek's disease; immunosuppression; laryngotracheitis; model; MDV-induced immunosuppression
MeSH headings : Animals; Chickens / immunology; Chickens / virology; Female; Herpesvirus 2, Gallid / immunology; Immunosuppression Therapy; Marek Disease / immunology; Marek Disease / virology; Models, Immunological; Specific Pathogen-Free Organisms; Tracheitis / prevention & control; Tracheitis / veterinary; Tracheitis / virology; Vaccination / veterinary; Viral Vaccines / immunology
Sources: Web Of Science, ORCID
Added: August 6, 2018

2014 journal article

Epithelial Cell Tumors of the Hen Reproductive Tract

Avian Diseases, 58(1), 95–101.

By: E. Harris  n, O. Fletcher*, K. Anderson n , J. Petitte n , L. Kopelovich* & P. Mozdziak n 

co-author countries: United States of America 🇺🇸

Contributors: E. Harris  n, O. Fletcher*, K. Anderson n , J. Petitte n , L. Kopelovich* & P. Mozdziak n 

author keywords: hen; egg-laying; cancer; oviductal; ovarian; malignancy
MeSH headings : Animals; Chickens; Epithelial Cells / pathology; Female; Gastrointestinal Neoplasms / classification; Gastrointestinal Neoplasms / epidemiology; Gastrointestinal Neoplasms / pathology; Gastrointestinal Neoplasms / veterinary; Genital Diseases, Female / classification; Genital Diseases, Female / epidemiology; Genital Diseases, Female / pathology; Genital Diseases, Female / veterinary; Incidence; Ovarian Neoplasms / classification; Ovarian Neoplasms / epidemiology; Ovarian Neoplasms / pathology; Ovarian Neoplasms / veterinary; Oviducts / pathology; Poultry Diseases / classification; Poultry Diseases / epidemiology; Poultry Diseases / pathology
Sources: Web Of Science, ORCID
Added: August 6, 2018

2013 journal article

Reovirus Infections in Young Broiler Chickens

AVIAN DISEASES, 57(2), 321–325.

By: J. Davis, A. Kulkarni & O. Fletcher n

co-author countries: United States of America 🇺🇸
author keywords: reovirus; pancreas
MeSH headings : Animals; Chickens; Enzyme-Linked Immunosorbent Assay / veterinary; Molecular Sequence Data; Pancreas / pathology; Pancreas / virology; Phylogeny; Poultry Diseases / pathology; Poultry Diseases / virology; Reoviridae / genetics; Reoviridae / isolation & purification; Reoviridae Infections / pathology; Reoviridae Infections / veterinary; Reoviridae Infections / virology; Sequence Analysis, DNA / veterinary; Sequence Analysis, Protein / veterinary; Specific Pathogen-Free Organisms; Viral Proteins / chemistry; Viral Proteins / genetics; Viral Proteins / metabolism
Source: Web Of Science
Added: August 6, 2018

2012 journal article

Myocarditis in 9- and 11-Day-Old Broiler Breeder Chicks Associated with a Reovirus Infection

AVIAN DISEASES, 56(4), 786–790.

By: J. Davis, A. Kulkarni & O. Fletcher n

co-author countries: United States of America 🇺🇸
author keywords: reovirus; myocarditis
Source: Web Of Science
Added: August 6, 2018

2012 journal article

Transmissible Viral Proventriculitis Identified in Broiler Breeder and Layer Hens

Avian Diseases, 56(4), 757–759.

By: R. Marusak*, M. West*, J. Davis*, O. Fletcher* & J. Guy* 

co-author countries: United States of America 🇺🇸
author keywords: transmissible viral proventriculitis; chicken proventricular necrosis virus
MeSH headings : Animals; Birnaviridae / genetics; Birnaviridae / isolation & purification; Chickens; Fatal Outcome; Female; Formaldehyde / chemistry; Georgia; Paraffin Embedding / veterinary; Poultry Diseases / diagnosis; Poultry Diseases / pathology; Poultry Diseases / virology; Proventriculus / pathology; Proventriculus / virology; Reverse Transcriptase Polymerase Chain Reaction / veterinary; Sequence Analysis, DNA / veterinary; Stomach Diseases / diagnosis; Stomach Diseases / pathology; Stomach Diseases / veterinary; Stomach Diseases / virology; Viral Proteins / genetics
Sources: Web Of Science, Crossref, ORCID
Added: August 6, 2018

2011 journal article

Detection of Chicken Proventricular Necrosis Virus (R11/3 Virus) in Experimental and Naturally Occurring Cases of Transmissible Viral Proventriculitis with the Use of a Reverse Transcriptase-PCR Procedure

AVIAN DISEASES, 55(1), 70–75.

By: J. Guy* , M. West*, F. Fuller* , R. Marusak*, H. Shivaprasad*, J. Davis, O. Fletcher*

co-author countries: United States of America 🇺🇸
author keywords: polymerase chain reaction; chicken; proventriculitis
MeSH headings : Adenoviridae Infections / veterinary; Animals; Aviadenovirus; Cells, Cultured; Chick Embryo; Chickens; Poultry Diseases / virology; Proventriculus / virology; Reverse Transcriptase Polymerase Chain Reaction / veterinary
Sources: Web Of Science, ORCID
Added: August 6, 2018

2011 journal article

Identification of Ascaridia numidae in Guinea Fowl (Numida meleagris) and Association with Elevated Mortality

AVIAN DISEASES, 55(1), 151–154.

By: K. Robbins*, W. Ye & O. Fletcher*

author keywords: 18S; 28S; Ascaridia numidae; DNA sequencing; guinea fowl
MeSH headings : Animals; Ascaridia; Ascaridiasis / mortality; Ascaridiasis / parasitology; Ascaridiasis / veterinary; Base Sequence; DNA, Helminth; Disease Outbreaks; Galliformes; Jejunum / parasitology; Jejunum / pathology; Polymerase Chain Reaction / veterinary; Poultry Diseases / mortality; Poultry Diseases / parasitology
Source: Web Of Science
Added: August 6, 2018

2011 journal article

Macrorhabdus ornithogaster (Megabacterium) Infection in Adult Hobby Chickens in North America

AVIAN DISEASES, 55(2), 331–334.

By: E. Behnke & O. Fletcher n

co-author countries: United States of America 🇺🇸
author keywords: megabacteria; Macrorhabdus ornithogaster; avian gastric yeast infection
MeSH headings : Animals; Ascomycota / classification; Ascomycota / isolation & purification; Chickens; Enteritis / microbiology; Female; Gizzard, Avian / pathology; Male; Mycoses / epidemiology; Mycoses / microbiology; Mycoses / pathology; Mycoses / veterinary; North America / epidemiology; Pets; Proventriculus / pathology
Source: Web Of Science
Added: August 6, 2018

2011 journal article

Selected Blood Chemistry Values in Mobility-Impaired Broiler Breeder Hens with Suspected Calcium Tetany Using the i-STAT (R) Handheld Clinical Analyzer

AVIAN DISEASES, 55(3), 340–345.

By: M. Martin*, M. Wineland n, O. Fletcher* & H. Barnes

co-author countries: United States of America 🇺🇸
author keywords: blood chemistry values; broiler breeder chickens; calcium tetany; diagnostics; hypocalcemia; impaired mobility; ionized calcium; i-STAT; poultry
MeSH headings : Animals; Blood Chemical Analysis / instrumentation; Blood Chemical Analysis / veterinary; Blood Gas Analysis / instrumentation; Blood Gas Analysis / veterinary; Calcium / deficiency; Chickens; Female; Hypocalcemia / blood; Hypocalcemia / diagnosis; Hypocalcemia / pathology; Hypocalcemia / veterinary; Movement; Poultry Diseases / blood; Poultry Diseases / diagnosis; Poultry Diseases / pathology; Reference Values; Tetany / blood; Tetany / diagnosis; Tetany / pathology; Tetany / veterinary
Source: Web Of Science
Added: August 6, 2018

2010 journal article

Measuring the intra-individual variability of the plasma proteome in the chicken model of spontaneous ovarian adenocarcinoma

ANALYTICAL AND BIOANALYTICAL CHEMISTRY, 398(2), 737–749.

By: A. Hawkridge n, R. Wysocky n, J. Petitte n , K. Anderson n , P. Mozdziak n , O. Fletcher n, J. Horowitz n, D. Muddiman n 

co-author countries: United States of America 🇺🇸

Contributors: A. Hawkridge n, R. Wysocky n, J. Petitte n , K. Anderson n , P. Mozdziak n , O. Fletcher n, J. Horowitz n, D. Muddiman n 

author keywords: Genomics/proteomics; Mass spectrometry/ICP-MS; Biological samples; Bioanalytical methods; Clinical/biomedical analysis
MeSH headings : Adenocarcinoma / metabolism; Adenocarcinoma / pathology; Animals; Chickens; Female; Humans; Mass Spectrometry / methods; Ovarian Neoplasms / metabolism; Ovarian Neoplasms / pathology; Plasma / metabolism; Proteome / analysis; Proteome / metabolism; Proteomics / methods
Sources: Web Of Science, ORCID
Added: August 6, 2018

2010 article

Measuring the intra-individual variability of the plasma proteome in the chicken model of spontaneous ovarian adenocarcinoma (vol 398, pg 737, 2010)

Hawkridge, A. M., Wysocky, R. B., Petitte, J. N., Anderson, K. E., Mozdziak, P. E., Fletcher, O. J., … Muddiman, D. C. (2010, October). ANALYTICAL AND BIOANALYTICAL CHEMISTRY, Vol. 398, pp. 1835–1835.

By: A. Hawkridge n, R. Wysocky n, J. Petitte n , K. Anderson n , P. Mozdziak n , O. Fletcher n, J. Horowitz n, D. Muddiman n 

co-author countries: United States of America 🇺🇸

Contributors: A. Hawkridge n, R. Wysocky n, J. Petitte n , K. Anderson n , P. Mozdziak n , O. Fletcher n, J. Horowitz n, D. Muddiman n 

Sources: Web Of Science, ORCID
Added: August 6, 2018

2010 journal article

Mycoplasma iowae associated with chondrodystrophy in commercial turkeys

AVIAN PATHOLOGY, 39(2), 87–93.

By: D. Ley n, R. Marusak n, E. Vivas n, H. Barnes n & O. Fletcher n

co-author countries: United States of America 🇺🇸
MeSH headings : Animals; Antibodies, Bacterial / immunology; Cartilage / pathology; Chondrocytes / pathology; DNA, Bacterial / genetics; Diagnosis, Differential; Female; Hindlimb / microbiology; Hindlimb / pathology; Mycoplasma Infections / microbiology; Mycoplasma Infections / pathology; Mycoplasma Infections / veterinary; Mycoplasma iowae / genetics; Mycoplasma iowae / immunology; Mycoplasma iowae / isolation & purification; Poultry Diseases / microbiology; Poultry Diseases / pathology; Spine / microbiology; Spine / pathology; Turkeys
Source: Web Of Science
Added: August 6, 2018

2009 journal article

Effect of a direct-fed microbial (Primalac) on structure and ultrastructure of small intestine in turkey poults

Poultry Science, 88(3), 491–503.

By: S. Rahimi *, J. Grimes n, O. Fletcher n, E. Oviedo  n & B. Sheldon n

co-author countries: Iran (Islamic Republic of) 🇮🇷 United States of America 🇺🇸
author keywords: probiotic; turkey; intestine; morphology; Salmonella
MeSH headings : Animal Feed; Animal Nutritional Physiological Phenomena; Animals; Diet / veterinary; Female; Intestine, Small / drug effects; Intestine, Small / ultrastructure; Poultry Diseases / drug therapy; Poultry Diseases / prevention & control; Probiotics / pharmacology; Salmonella Infections, Animal / prevention & control; Turkeys
Sources: Web Of Science, Crossref, ORCID
Added: August 6, 2018

2007 journal article

Comb candidiasis affecting roosters in a broiler breeder flock

AVIAN DISEASES, 51(2), 618–622.

By: C. Osorio, O. Fletcher*, M. Dykstra*, K. Post* & H. Barnes

author keywords: candidiasis; Candida albicans; broiler breeder male; chicken; mycosis
Source: Web Of Science
Added: August 6, 2018

2007 journal article

Pneumonia of Turkey Breeder Hens Associated with Mycoplasma synoviae

AVIAN DISEASES, 51(3), 791–796.

By: C. Osorio, O. Fletcher*, T. Abdul-Aziz*, E. Gonder*, B. Tilley* & D. Ley*

co-author countries: United States of America 🇺🇸
author keywords: fibrinous pneumonia; Mycoplasma synoviae; turkey breeder hens; respiratory disease
Source: Web Of Science
Added: August 6, 2018

2000 journal article

The toxicity of purified fumonisin B-1 in broiler chicks

POULTRY SCIENCE, 79(10), 1378–1384.

By: M. Henry*, R. Wyatt* & O. Fletcher n

co-author countries: Georgia 🇬🇪 United States of America 🇺🇸
author keywords: fumonisin B-1; sphinganine; sphingosine; Fusarium moniliforme; mycotoxin
MeSH headings : Alanine Transaminase / blood; Animals; Aspartate Aminotransferases / blood; Body Weight; Brain / pathology; Carboxylic Acids / administration & dosage; Carboxylic Acids / toxicity; Chickens; Diet; Drinking; Eating; Fumonisins; Hyperplasia; Kidney / anatomy & histology; Kidney / pathology; Lipids / analysis; Liver / anatomy & histology; Liver / chemistry; Male; Mycotoxins; Necrosis; Organ Size; Sphingosine / analogs & derivatives; Sphingosine / analysis; Spleen / anatomy & histology
Source: Web Of Science
Added: August 6, 2018