Works (74)

2023 journal article

Wind Speed and Landscape Context Mediate Campylobacter Risk among Poultry Reared in Open Environments

Animals.

By: O. Smith*, K. Cornell*, M. Crossley*, R. Crespo, M. Jones*, W. Snyder*, J. Owen*

Source: ORCID
Added: February 2, 2023

2022 journal article

A flow cytometric method for enumeration and speciation of coccidia affecting broiler chickens

VETERINARY PARASITOLOGY, 301.

author keywords: Flow cytometry; Eimeria; Coccidiosis; Oocyst; Quantification
Sources: ORCID, Web Of Science
Added: December 1, 2021

2022 journal article

Characterization of vaccine-induced immune responses against coccidiosis in broiler chickens

VACCINE, 40(29), 3893–3902.

author keywords: Coccidiosis; Eimeria; Vaccine; Immunity; Immune response
Sources: Web Of Science, ORCID
Added: May 27, 2022

2022 article

Diversity and Prevalence of Ectoparasites on Poultry from Open Environment Farms in the Western-United States of Washington, Idaho, Oregon, and California

Chambless, K. N., Cornell, K. A., Crespo, R., Snyder, W. E., & Owen, J. P. (2022, July 23). JOURNAL OF MEDICAL ENTOMOLOGY, Vol. 7.

By: K. Chambless*, K. Cornell*, R. Crespo, W. Snyder* & J. Owen*

author keywords: parasite; louse; mite; chicken; organic
Sources: Web Of Science, ORCID
Added: August 15, 2022

2022 journal article

Enumeration and speciation of coccidia affecting turkeys using flow cytometry method

JOURNAL OF APPLIED POULTRY RESEARCH, 31(3).

By: T. Boyett n, R. Crespo, V. Vinueza n, C. Gaghan, J. Mohammed & R. Kulkarni n

author keywords: Eimeria; coccidiosis; turkey; flow cytometry; diagnosis
Sources: ORCID, Web Of Science
Added: May 13, 2022

2022 journal article

Evaluation of Growing Turkey Blood Biochemistry Panel Measured Using the VetScan VS2

Poultry.

By: D. Adams n, E. Gruber, H. Sather, M. Correa & R. Crespo

Source: ORCID
Added: June 16, 2022

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, S. Gall n & R. Crespo

author keywords: imageJ; Eimeria; coccidiosis; oocyst; chicken
Sources: Web Of Science, ORCID
Added: June 20, 2022

2022 journal article

Systemic veterinary drugs for control of the common bed bug, Cimex lectularius, in poultry farms

PARASITES & VECTORS, 15(1).

By: M. Gonzalez-Morales n, A. Thomson, O. Petritz, R. Crespo, A. Haija n, R. Santangelo n, C. Schal

author keywords: Cimex lectularius; Fluralaner; Ivermectin; Systemics; Poultry; Chicken
Sources: Web Of Science, ORCID
Added: December 5, 2022

2021 journal article

Comparison of portable and conventional laboratory analyzers for biochemical tests in chickens

POULTRY SCIENCE, 100(2), 746–754.

By: F. Ruiz-Jimenez n, E. Gruber, M. Correa & R. Crespo

author keywords: analyzer; biochemical analysis; broiler; conventional; portable
Sources: Web Of Science, ORCID
Added: December 2, 2020

2021 journal article

Development of a Dissemination Platform for Spatiotemporal and Phylogenetic Analysis of Avian Infectious Bronchitis Virus

FRONTIERS IN VETERINARY SCIENCE, 8.

By: M. Jara, R. Crespo, D. Roberts, A. Chapman, A. Banda* & G. Machado

author keywords: infectious bronchitis; virus evolution; outbreak analytics; avian disease; evolutionary epidemiology
Sources: Web Of Science, ORCID
Added: June 14, 2021

2021 journal article

Genomic Characterization of a Nalidixic Acid-Resistant Salmonella Enteritidis Strain Causing Persistent Infections in Broiler Chickens

FRONTIERS IN VETERINARY SCIENCE, 8.

By: G. Walker, M. Suyemoto, D. Hull, S. Gall, F. Jimenez n, L. Chen, S. Thakur, R. Crespo, L. Borst

author keywords: Salmonella Enteritidis; poultry; genomics; antimicrobial resistance; broilers
Sources: Web Of Science, ORCID
Added: September 27, 2021

2021 journal article

Unraveling the Contact Network Patterns between Commercial Turkey Operation in North Carolina and the Distribution of Salmonella Species

Pathogens, 10(12).

By: C. Ellington, C. Hebron, R. Crespo & G. Machado

author keywords: Salmonella; network; risk factors; food-borne; turkey; North Carolina; prevalence
Source: ORCID
Added: December 1, 2021

2020 journal article

Effect of broiler genetics, age, and gender on performance and blood chemistry

HELIYON, 6(7).

By: M. Livingston, A. Cowieson*, R. Crespo, V. Hoang*, B. Nogal*, M. Browning n, K. Livingston

author keywords: Broiler; Biomarkers; Blood physiology; Rapid point-of-care detection; Animal breeding; Animal product; Biochemistry; Animal physiology; Veterinary science
Sources: Web Of Science, ORCID
Added: August 31, 2020

2020 journal article

Effect of coccidial challenge and vaccination on the performance, veterinary postmortem scores, and blood biochemistry of broiler chickens

POULTRY SCIENCE, 99(8), 3831–3840.

By: A. Cowieson*, M. Livingston, B. Nogal*, V. Hoang*, Y. Wang*, R. Crespo, K. Livingston

author keywords: coccidiosis; broiler; blood; vaccination; performance
Sources: Web Of Science, ORCID
Added: August 17, 2020

2020 journal article

The occurrence of Salmonella, extended-spectrum β-lactamase producing Escherichia coli and carbapenem resistant non-fermenting Gram-negative bacteria in a backyard poultry flock environment

Zoonoses and Public Health, 67(6), 742–753.

By: D. Shah*, M. Board*, R. Crespo, J. Guard*, N. Paul* & C. Faux*

author keywords: Achromobacter; Acinetobacter; E; coli; multidrug resistance; poultry; Pseudomonas; Salmonella
Source: ORCID
Added: May 22, 2022

2019 article

Bacterial Diversity in Feces of Wild Bald Eagles, Turkey Vultures and Common Ravens from the Pacific Northwest Coast, U.S.A

Crespo, R., Dowd, S. E., Varland, D. E., Ford, S., & Hamer, T. E. (2019, January 3). BioRxiv, Vol. 1.

By: R. Crespo, S. Dowd*, D. Varland*, S. Ford* & T. Hamer*

Source: ORCID
Added: April 26, 2020

2019 journal article

Haemoproteosis lethality in a woodpecker, with molecular and morphological characterization of Haemoproteus velans (Haemosporida, Haemoproteidae)

International Journal for Parasitology: Parasites and Wildlife, 10, 93–100.

By: T. Groff*, T. Lorenz*, R. Crespo, T. Iezhova*, G. Valkiūnas* & R. Sehgal*

author keywords: Haemoproteus velans; Molecular and morphological characterization; Mortality; Picidae; White-headed woodpecker; Radio-tagging
Sources: Crossref, ORCID
Added: August 29, 2019

2019 journal article

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

AVIAN DISEASES, 63(3), 520–524.

By: R. Crespo, M. Bland* & T. Opriessnig*

author keywords: attenuated vaccine; chicken; drag swab; drinking water; environment; Erysipelothrix rhusiopathiae; vaccination
Sources: Web Of Science, ORCID
Added: April 20, 2020

2018 journal article

Biochemical Reference Intervals for Backyard Hens

JOURNAL OF AVIAN MEDICINE AND SURGERY, 32(4), 301–306.

By: M. Board*, R. Crespo, D. Shah* & C. Faux*

author keywords: biochemistry; reference intervals; avian; backyard poultry; chicken; hen; Gallus gallus domesticus
Sources: Web Of Science, ORCID
Added: February 11, 2019

2018 journal article

Biochemical reference intervals for backyard hens

Journal of Avian Medicine and Surgery, 32(4), 301–306.

By: M. Board*, R. Crespo, D. Shah* & C. Faux*

Source: ORCID
Added: May 22, 2022

2018 chapter

Galliformes and Columbiformes

In Pathology of Wildlife and Zoo Animals (pp. 747–773).

Sources: Crossref, ORCID
Added: September 8, 2019

2016 journal article

Inactivation of Infectious Bursal Disease Virus Through Composting of Litter from Poultry Houses

Avian Diseases, 60(2), 506–510.

By: R. Crespo, L. Badcoe*, C. Williams* & A. Bary*

Sources: Crossref, ORCID
Added: September 8, 2019

2016 journal article

Population dynamics and antimicrobial resistance of the most prevalent poultry-associated Salmonella serotypes

Poultry Science, 96(3), 687–702.

By: D. Shah*, N. Paul*, W. Sischo*, R. Crespo & J. Guard*

author keywords: Salmonella; poultry; antimicrobial resistance
Sources: ORCID, Crossref
Added: September 29, 2019

2016 chapter

Urate Deposition (Gout)

In The Merck Veterinary Manual (11th ed.). http://www.merckvetmanual.com/poultry/miscellaneous-conditions-of-poultry/urate-deposition-gout-in-poultry.

By: R. Crespo

Source: NC State University Libraries
Added: September 11, 2019

2015 journal article

Avian Hepatitis E Virus Infection in Organic Layers

Avian Diseases, 59(3), 388–393.

author keywords: avian hepatitis virus E; chicken; hepatitis
Sources: Crossref, ORCID
Added: January 5, 2020

2015 journal article

Comparison of conventional plating methods and Petrifilm for the recovery of aerobic bacteria and mold from hatchery fluff samples

The Journal of Applied Poultry Research, 25(1), 48–53.

By: C. Warren*, S. Weber* & R. Crespo

author keywords: bacteria; count; fluff; hatchery; mold; Petrifilm; plate count agar; Sabouraud dextrose agar
Sources: Crossref, ORCID
Added: September 11, 2019

2015 chapter

Diagnostic Lab Sampling

In C. B. Greenacre & T. Y. Morishita (Eds.), Backyard Poultry Medicine and Surgery: A Guide for Veterinary Practitioners (pp. 275–282). Hoboken, New Jersey: Wiley-Blackwell.

By: R. Crespo & H. Shivaprasad

Ed(s): C. Greenacre & T. Morishita

Source: NC State University Libraries
Added: February 12, 2021

2015 chapter

Interpretation of Laboratory Results and Values

In C. B. Greenacre & T. Y. Morishita (Eds.), Backyard Poultry Medicine and Surgery: A Guide for Veterinary Practitioners (pp. 283–296). Hoboken, New Jersey: Wiley-Blackwell.

By: R. Crespo & H. Shivaprasad

Ed(s): C. Greenacre & T. Morishita

Source: NC State University Libraries
Added: February 12, 2021

2015 chapter

Laboratory Diagnostic Procedures in Poultry

In J. Brugere-Picoux & J.-P. Vaillancourt (Eds.), Manual of Poultry Disease (2nd ed., pp. 126–133). French Association for the Advancement of Science (AFAS).

By: R. Crespo

Ed(s): J. Brugere-Picoux & J. Vaillancourt

Source: NC State University Libraries
Added: February 12, 2021

2015 journal article

Novel Eurasian Highly Pathogenic Avian Influenza A H5 Viruses in Wild Birds, Washington, USA, 2014

Emerging Infectious Diseases, 21(5), 886–890.

By: H. Ip, M. Torchetti, R. Crespo, P. Kohrs, P. DeBruyn, K. Mansfield, T. Baszler, L. Badcoe ...

Sources: Crossref, ORCID
Added: January 5, 2020

2015 journal article

Postmortem Survey of Disease Conditions in Backyard Poultry

Journal of Exotic Pet Medicine, 24(2), 156–163.

By: R. Crespo & G. Senties-Cue*

author keywords: ascaridiasis; coccidiosis; Escherichia coli; Marek's disease; necropsy; reproductive neoplasia
Sources: Crossref, ORCID
Added: January 5, 2020

2014 journal article

Evaluation of passive immunotherapeutic efficacy of hyperimmunized egg yolk powder against intestinal colonization of Campylobacter jejuni in chickens

Poultry Science, 93(11), 2779–2787.

By: N. Paul*, S. Al-Adwani*, R. Crespo & D. Shah*

author keywords: hyperimmunized egg yolk powder; Campylobacter jejuni; colonization
Sources: Crossref, ORCID
Added: January 5, 2020

2014 journal article

Reducing Campylobacter jejuni Colonization of Poultry via Vaccination

PLoS ONE, 9(12), e114254.

By: J. Neal-McKinney*, D. Samuelson*, T. Eucker*, M. Nissen*, R. Crespo & M. Konkel*

Ed(s): S. Bereswill

Sources: Crossref, ORCID
Added: August 29, 2019

2013 chapter

Miscellaneous diseases

In D. Swayne (Ed.), Diseases of Poultry (13th ed., pp. 1233–1270). Ames, Iowa. Pages: Iowa State Press.

By: R. Crespo & H. Shivaprasad

Ed(s): D. Swayne

Source: NC State University Libraries
Added: February 20, 2021

2013 journal article

Outbreak of Listeria monocytogenes in an urban poultry flock

BMC Veterinary Research, 9(1), 204.

By: R. Crespo, M. Garner*, S. Hopkins* & D. Shah*

Sources: Crossref, ORCID
Added: August 29, 2019

2013 journal article

Production and Evaluation of Chicken Egg-Yolk-Derived Antibodies Against Campylobacter jejuni Colonization-Associated Proteins

Foodborne Pathogens and Disease, 10(7), 624–631.

By: S. Al-Adwani*, R. Crespo & D. Shah

Sources: Crossref, ORCID
Added: January 5, 2020

2013 journal article

Ulcerative Enteritis-like Disease Associated with Clostridium sordellii in Quail

Avian Diseases, 57(3), 698–702.

By: R. Crespo, M. Franca* & H. Shivaprasad*

author keywords: Clostridium sordellii; enteritis; quail
Sources: Crossref, ORCID
Added: August 29, 2019

2013 book

Velogenic Newcastle-slide study set

Jacksonville, FL: American Association of Avian Pathologists.

By: H. Shivaprasad & R. Crespo

Source: NC State University Libraries
Added: February 20, 2021

2012 journal article

Detection of Salmonella Enteritidis (SE) Bacterin in Environmental Samples from Poultry Houses Using the RapidChek SE Immunoassay

Avian Diseases, 56(3), 621–624.

By: R. Crespo, D. Schaberg* & C. Warren*

author keywords: bacterin; chicken; immunoassay; Salmonella
Sources: Crossref, ORCID
Added: January 5, 2020

2011 journal article

Rupture of Gastrocnemius Tendon in Broiler Breeder Hens

Avian Diseases, 55(3), 495–498.

By: R. Crespo & H. Shivaprasad*

author keywords: chicken; lameness; rupture; tendon
Sources: Crossref, ORCID
Added: January 5, 2020

2010 journal article

Decrease of Fertility in a Broiler Breeder Flock due to Testicular Atrophy

Avian Diseases, 54(1), 142–145.

By: R. Crespo & H. Shivaprasad*

author keywords: atrophy; chicken; fertility; male; spermatogenesis; testes; weight
Sources: Crossref, ORCID
Added: January 5, 2020

2010 journal article

Pet Poultry Training for Veterinary Practitioners

Journal of Veterinary Medical Education, 37(4), 383–387.

By: R. Crespo, C. Faux, S. Dhillon, R. Newberry & D. Moore

author keywords: chickens; disease; pet; poultry; public health; urban; zoonosis
Sources: Crossref, ORCID
Added: January 5, 2020

2010 journal article

Retrospective Study of Myocarditis Associated with Reovirus in Turkeys

Avian Diseases, 54(3), 1026–1031.

By: M. França*, R. Crespo, R. Chin*, P. Woolcock* & H. Shivaprasad*

author keywords: turkey; myocarditis; reovirus
Sources: Crossref, ORCID
Added: January 5, 2020

2010 chapter

Urate Deposition (Gout)

In The Merck Veterinary Manual (10th ed., p. 2473). Whitehouse Station, New Jersey. Page: Merck & Co. Inc.

By: R. Crespo

Source: NC State University Libraries
Added: February 20, 2021

2009 journal article

Intervention Strategies for Laryngotracheitis: Impact of Extended Downtime and Enhanced Biosecurity Auditing

Avian Diseases, 53(4), 574–577.

By: R. Chin*, M. García*, C. Corsiglia*, S. Riblet*, R. Crespo, H. Shivaprasad*, A. Rodríguez-Avila*, P. Woolcock*, M. França*

author keywords: laryngotracheitis; extended downtime; vaccination; biosecurity
Sources: Crossref, ORCID
Added: February 12, 2021

2009 journal article

Isolation and Distribution of West Nile Virus in Embryonated Chicken Eggs

Avian Diseases, 53(4), 608–612.

By: R. Crespo, H. Shivaprasad*, M. França* & P. Woolcock*

author keywords: egg; chicken; chorioallantoic membrane; West Nile virus
Sources: Crossref, ORCID
Added: September 1, 2020

2008 journal article

Bilateral Malacia Associated with Sodium Poisoning in Turkey Poults

Avian Diseases, 52(1), 179–182.

By: R. Crespo, M. Subbiah*, C. Corsiglia*, A. Bickford* & B. Puschner*

author keywords: Malacia; poisoning; poult; toxicity; turkey; salt; sodium
Sources: Crossref, ORCID
Added: September 1, 2020

2008 journal article

Coxiella-Like Infection in Psittacines and a Toucan

Avian Diseases, 52(3), 426–432.

By: H. Shivaprasad*, M. Cadenas, S. Diab*, R. Nordhausen*, D. Bradway*, R. Crespo, E. Breitschwerdt

author keywords: avian; psittacines; toucan; hepatitis; splenitis; Coxiella
Sources: Crossref, ORCID, Web Of Science
Added: August 6, 2018

2008 journal article

Facial Cellulitis Induced in Chickens by Mycoplasma gallisepticum Bacterin and Its Treatment

Avian Diseases, 52(4), 698–701.

By: R. Crespo & R. McMillan*

author keywords: bacterin; cellulitis; chicken; methyl prednisol acetate
Sources: Crossref, ORCID
Added: February 12, 2021

2008 journal article

Interaction of Ionophore and Vitamin E in Knockdown Syndrome of Turkeys

Journal of Veterinary Diagnostic Investigation, 20(4), 472–476.

By: R. Crespo, H. Shivaprasad*, F. Sommer* & B. Puschner*

author keywords: Ionophore; knockdown syndrome; monensin; turkeys; vitamin E
Sources: Crossref, ORCID
Added: September 1, 2020

2008 chapter

Miscellaneous diseases

In Y. M. Saif (Ed.), Diseases of Poultry (12th ed., pp. 1149–1195). Ames, Iowa. Pages: Iowa State Press.

By: R. Crespo & H. Shivaprasad

Ed(s): Y. Saif

Source: NC State University Libraries
Added: February 20, 2021

2007 journal article

Comparison of Diagnostics Techniques in an Outbreak of Infectious Laryngotracheitis from Meat Chickens

Avian Diseases, 51(4), 858–862.

By: R. Crespo, P. Woolcock*, R. Chin*, H. Shivaprasad* & M. García*

author keywords: chicken; fluorescent antibody; herpesvirus; infectious laryngotracheitis; syncytial cell
Sources: Crossref, ORCID
Added: September 1, 2020

2007 journal article

Toxinotypes of Clostridium Perfringens Isolated from Sick and Healthy Avian Species

Journal of Veterinary Diagnostic Investigation, 19(3), 329–333.

By: R. Crespo, D. Fisher*, H. Shivaprasad*, M. Fernández-Miyakawa* & F. Uzal*

author keywords: avian; beta2 toxin; Clostridium perfringens; necrotic enteritis; PCR
Sources: Crossref, ORCID
Added: September 1, 2020

2006 journal article

Otitis Interna (Labyrinthitis) Associated with Salmonella enterica arizonae in Turkey Poults

Avian Diseases, 50(1), 135–138.

By: H. Shivaprasad*, P. Cortes* & R. Crespo

author keywords: otitis interna; turkey poults; meningoencephalitis; vestibulocochlear nerve; Salmonella enterica arizonae
Sources: Crossref, ORCID
Added: February 12, 2021

2006 journal article

Skin and Abdominal Fascia Melanization in Broiler Chickens

Avian Diseases, 50(2), 309–311.

By: R. Crespo & M. Pizarro*

author keywords: dermal melanization; dermis; eumelanin; fascia; skin
Sources: Crossref, ORCID
Added: September 1, 2020

2006 journal article

Vitamin a Deficiency in Turkey Poults

Journal of Veterinary Diagnostic Investigation, 18(5), 489–494.

By: P. Cortes*, A. Tiwary*, B. Puschner*, R. Crespo, R. Chin*, M. Bland*, H. Shivaprasad*

author keywords: hyperkeratinization; hypovitaminosis A; squamous metaplasia; vitamin A deficiency
Sources: Crossref, ORCID
Added: September 1, 2020

2004 journal article

Coronary artery rupture in male commercial turkeys

Avian Pathology, 33(2), 226–232.

By: H. Shivaprasad*, R. Crespo & B. Puschner*

Sources: Crossref, ORCID
Added: September 1, 2020

2004 journal article

Effect of Feeding Green Onions (Allium Ascalonicum) to White Chinese Geese (Threskiornis Spinicollis)

Journal of Veterinary Diagnostic Investigation, 16(4), 321–325.

By: R. Crespo & R. Chin*

Sources: Crossref, ORCID
Added: September 1, 2020

2004 journal article

Histomoniasis in the Bursa of Fabricius of Chickens

Avian Diseases, 48(3), 711–715.

By: P. Cortes*, R. Chin*, M. Bland*, R. Crespo & H. Shivaprasad*

author keywords: histomoniasis; blackhead; bursa of Fabricius; chicken; Heterakis
Sources: Crossref, ORCID
Added: September 1, 2020

2004 journal article

Phenotypic and Genotypic Characterization of Salmonella arizonae from an Integrated Turkey Operation

Avian Diseases, 48(2), 344–350.

By: R. Crespo, J. Jeffrey*, R. Chin*, G. Sentíes-Cué* & H. Shivaprasad*

Sources: Crossref, ORCID
Added: February 12, 2021

2003 journal article

Focal Transmural Necrotic Tracheitis in Commerical Meat Turkeys

Avian Diseases, 47(1), 234–239.

By: G. Sentíes-Cué*, R. Crespo & R. Chin*

author keywords: necrotic; toxic irritant; tracheitis; turkeys
Sources: Crossref, ORCID
Added: February 12, 2021

2003 chapter

Miscellaneous diseases

In Y. M. Saif (Ed.), Diseases of Poultry (11th ed., pp. 1055–1102). Ames, Iowa. Pages: Iowa State Press.

By: R. Crespo & H. Shivaprasad

Ed(s): Y. Saif

Source: NC State University Libraries
Added: February 20, 2021

2002 journal article

Avulsion of the Common Retinaculum in Meat Turkeys

Avian Diseases, 46(1), 245–248.

By: R. Crespo, G. Ghazikhanian* & C. Hall*

author keywords: avulsion; condemnation; common retinaculum; downgrading; turkey
Sources: Crossref, ORCID
Added: February 12, 2021

2002 journal article

Characterization of T-cell lymphomas associated with an outbreak of reticuloendotheliosis in turkeys

Avian Pathology, 31(4), 355–361.

By: R. Crespo, P. Woolcock*, A. Fadly*, C. Hall* & H. Shivaprasad*

Sources: Crossref, ORCID
Added: September 1, 2020

2002 journal article

Microstructure and mineral content of femora in male turkeys with and without fractures

Poultry Science, 81(8), 1184–1190.

By: R. Crespo, S. Stover*, H. Shivaprasad* & R. Chin*

author keywords: femoral fracture; collagen; microstructure; mineral density; turkey
Sources: Crossref, ORCID
Added: February 12, 2021

2002 journal article

Myopathy in brown pelicans (Pelicanus occidentalis) associated with rancid feed

Veterinary Record, 150(10), 307–311.

By: H. Shivaprasad*, R. Crespo, B. Puschner*, S. Lynch* & L. Wright*

Sources: Crossref, ORCID
Added: February 12, 2021

2001 journal article

Salpingitis in Pekin Ducks Associated with Concurrent Infection with Tetratrichomonas sp. and Escherichia Coli

Journal of Veterinary Diagnostic Investigation, 13(3), 240–245.

By: R. Crespo, R. Walker*, R. Nordhausen*, S. Sawyer* & R. Manalac*

Sources: Crossref, ORCID
Added: February 12, 2021

2000 journal article

Morphometric and mechanical properties of femora in young adult male turkeys with and without femoral fractures

Poultry Science, 79(4), 602–608.

author keywords: femur; turkey; femoral fracture; morphometry; biomechanics
Sources: Crossref, ORCID
Added: February 12, 2021

1999 journal article

Exotic Newcastle Disease in a Game Chicken Flock

Avian Diseases, 43(2), 349.

By: R. Crespo, H. Shivaprasad*, P. Woolcock*, R. Chin*, D. Davidson-York* & R. Tarbell*

author keywords: game chickens; avian paramyxovirus type 1; pathology; exotic Newcastle disease; virus isolation
Sources: Crossref, ORCID
Added: September 1, 2020

1999 journal article

Femoral Fractures in a Young Male Turkey Breeder Flock

Avian Diseases, 43(1), 150–154.

By: R. Crespo, S. Stover*, R. Droual*, R. Chin* & H. Shivaprasad*

author keywords: endosteal callus; femur fracture; periosteal callus; turkey
Sources: Crossref, ORCID
Added: February 12, 2021

1998 journal article

Development of the Thoracic Air Sacs of Turkeys with Age and Rearing Conditions

Avian Diseases, 42(1), 35.

By: R. Crespo, S. Yamashiro & D. Hunter

author keywords: cilia; commercial; electron microscopy; epithelium; exfoliative cytology; guided fiberoptic endoscopy; histology; isolation; Meleagris gallopavo; microvilli; surfactant; thoracic air sac; turkey; type II pneumocytes
Sources: Crossref, ORCID
Added: September 1, 2020

1998 journal article

Endoscopic Gross Anatomy Findings of the Thoracic Air Sac of the Turkey

Avian Diseases, 42(1), 179.

By: R. Crespo, M. Taylor & D. Hunter

author keywords: blind sac; caudal thoracic air sac; cranial thoracic air sac; endoscope; invagination; Meleagris gallopavo; ostium; turkey
Sources: Crossref, ORCID
Added: September 1, 2020

1998 journal article

Evaluation of Different Procedures for Processing Avian Air Sac Lavage Fluid

Avian Diseases, 42(1), 20.

By: R. Crespo, T. Stirtzinger & D. Hunter

author keywords: air sac; anticoagulant; cell quality index; centrifugation speed; endoscope; fixative; lavage; Meleagris gallopavo; protein; temperature; time to processing; turkey
Sources: Crossref, ORCID
Added: September 1, 2020

1998 journal article

Inclusion Body Tracheitis Associated with Avian Adenovirus in Turkeys

Avian Diseases, 42(3), 589–596.

By: R. Crespo, H. Shivaprasad*, R. Droual*, R. Chin*, P. Woolcock* & T. Carpenter*

author keywords: adenovirus; electron microscopy; immunohistochemistry; inclusion bodies; trachea; turkey; virus isolation
Sources: Crossref, ORCID
Added: February 12, 2021

Employment

2018 - present

North Carolina State University Raleigh, NC, US
professor Population Health and Pathobiology, College of Veterinary Medicine

2009 - 2018

Washington State University Pullman, WA, US
professor Washington Animal Disease Diagnostic Laboratory, College of Veterinary Medicine

1996 - 2009

University of California Davis Davis, CA, US
Associate Professor and Branch Chief California Animal Health and Food Safety, College of Veterinary Medicine

Education

1993 - 1996

University of Guelph Guelph, ON, CA
DVSc Pathobiology, Ontario Veterinary College

1990 - 1993

University of Guelph Guelph, ON, CA
MS Animal Science

1983 - 1988

Universidad Complutense de Madrid Madrid, Comunidad de Madrid, ES
Licenciado veterinario