U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PubAg

Main content area

You searched for: Journal Avian pathology Remove constraint Journal: Avian pathology Publication Year 2003 Remove constraint Publication Year: 2003
Start Over

Search

69  Search Results

« Previous | 1 - 20 of 69 |
Number of results to display per page

Search Results

1. Ability of Massachusetts-type infectious bronchitis virus to increase colibacillosis susceptibility in commercial broilers: a comparison between vaccine and virulent field virus

Author:
Matthijs, M.G.R.; van Eck, J.H.H.; Landman, W.J.M.; Stegeman, J.A.
Source:
Avian pathology 2003 v.32 no.5 pp. 473-481
ISSN:
0307-9457
Subject:
broiler chickens; Escherichia coli; vaccines; body weight; mortality; Infectious bronchitis virus
Abstract:
... The abilities of Massachusetts-type vaccine virus and virulent infectious bronchitis (IB) field virus to increase colibacillosis susceptibility were compared. In four experiments, 29-day-old female commercial broilers housed in isolators, were infected intratracheally and oculonasally with IB vaccine strains (H120 and H52) or virulent IB field strains (D387 and M41) (4.8 or 6.8 log10 median embryo ...
DOI:
10.1080/0307945031000154062
PubMed:
14522702

2. Anticoccidial vaccination: the absence or reduction of numbers of endogenous parasites from gross lesions in immune chickens after virulen coccidial challenge

Author:
Williams, R.B.
Source:
Avian pathology 2003 v.32 no.5 pp. 535-543
ISSN:
0307-9457
Subject:
chickens; coccidiosis; live vaccines; Eimeria; lesions (animal)
Abstract:
... Male and female floor-reared chickens were immunized with a live, attenuated anticoccidial vaccine (Paracox) and then, 28 days after vaccination, were challenged with virulent strains of Eimeria acervulina, Eimeria brunetti, Eimeria maxima, Eimeria necatrix or Eimeria tenella. The relationship between the post-challenge growth rate and specific gross lesion grades, matched in individual birds, was ...
DOI:
10.1080/0307945031000154143

3. Apparent eradication of Mycoplasma synoviae in broiler breeders subjected to intensive antibiotic treatment directed to control Escherichia coli

Author:
Fiorentin, Laurimar; Soncini, Ricardo A.; Costa, Jose Luiz A. da; Mores, Marcos A.Z.; Trevisol, Iara M.; Toda, Marcia; Vieira, Nilson D.
Source:
Avian pathology 2003 v.32 no.2 pp. 213-216
ISSN:
0307-9457
Subject:
Escherichia coli; Mycoplasma synoviae; broiler breeders; farms; flocks; fluoroquinolones; monitoring; oxytetracycline; peritonitis; polymerase chain reaction; rearing
Abstract:
... A Mycoplasma synoviae (MS)-free flock of broiler breeders was housed for brooding and rearing on an MS endemic farm. PCR revealed that the flock became infected within nine weeks. At 22 weeks the flock wastransferred to a clean and disinfected house on a previously depopulated farm. The birds were then subjected to three treatments with fluoroquinolones due to recurrent Escherichia coli peritoniti ...
DOI:
10.1080/0307945021000071641

4. Association between in vitro heterophil function and the feathering gene in commercial broiler chickens

Author:
Swaggerty, C.L.; Pevzner, I.Y.; Ferro, P.J.; Crippen, T.L.; Kogut, M.H.
Source:
Avian pathology 2003 v.32 no.5 pp. 483-488
ISSN:
0307-9457
Subject:
broiler chickens; heterophils; feathers; genes; immune response
Abstract:
... We recently showed that in vitro heterophil functional efficiency in commercial broiler chickens is genetically controlled and may be a sex-associated trait. To further characterize the genetic mechanism(s) of heterophil functional efficiency, we wanted to determine whether the feathering gene, present on the Z sex chromosome, contributes to heterophil functional efficiency. Heterophils from two p ...
DOI:
10.1080/0307945031000154071
PubMed:
14522703

5. Avian host range of Chlamydophila spp. based on isolation, antigen detection and serology

Author:
Kaleta, E.F.; Taday, E.M.A.
Source:
Avian pathology 2003 v.32 no.5 pp. 435-462
ISSN:
0307-9457
Subject:
birds; host range; serodiagnosis; antigen detection; Chlamydophila
Abstract:
... Published reports and our own diagnostic data on the avian host range of avian Chlamydophila spp. are presented in an attempt to provide evidence for the large number of bird species that have been naturally infected with chlamydia. The term 'chlamydia-positive' is based on either isolation of the organism and antigen detection or on serological detection of circulating antibodies. The list of chl ...
DOI:
10.1080/03079450310001593613
PubMed:
14522700

6. Characterization of Newcastle disease virus isolates obtained from Eurasian collared doves (Streptopelia decaocto) in Italy

Author:
Terregino, Calogero; Cattoli, Giovanni; Grossele, Barbara; Bertoli, Elena; Tisato, Ernesto; Capua, Ilaria
Source:
Avian pathology 2003 v.32 no.1 pp. 63-68
ISSN:
0307-9457
Subject:
Newcastle disease; Streptopelia; doves; phylogeny; Avian orthoavulavirus 1; amino acids; viruses; pigeons; virulence; Columba livia; Italy; India; Middle East; Spain; Mediterranean region
Abstract:
... Eurasian collared doves (Streptopelia decaocto) are thought to originate from India and they have colonized, throughout the centuries, the Middle East and, more recently, Mediterranean countries such as Italy and Spain. In the present paper we report of the isolation and characterization of Newcastle disease viruses (NDV) obtained from Eurasian collared doves during 2000-2001, and compare them to ...
DOI:
10.1080/0307945021000070732

7. Characterization of infectious bursal disease virus isolates from Indonesia indicates the existence of very virulent strains with unique genetic changes

Author:
Parede, .H.; Sapats, S.; Gould, G.; Rudd, M.; Lowther, S.; Ignjatovic, J.
Source:
Avian pathology 2003 v.32 no.5 pp. 511-518
ISSN:
0307-9457
Subject:
chickens; Infectious bursal disease virus; genetic variation; sequence analysis; amino acid sequences
Abstract:
... Sequencing of the hypervariable region of viral protein VP2 of infectious bursal disease virus (IBDV) isolates obtained from non-vaccinated chickens in Indonesia showed that the majority (16/17) were closely related to published very virulent (vv)IBDV strains. Four isolates contained identical amino acid sequences to Asian and European vvIBDVs, sharing vv-specific amino acid residues 222(Ala), 256 ...
DOI:
10.1080/0307945031000154116
PubMed:
14522707

8. Comparison of the immune responses against Salmonella enterica serovar Gallinarum infection between naked neck chickens and a commercial chicken line

Author:
Alvarez, Maria Teresa; Ledesma, Nestor; Tellez, Guillermo; Molinari, Jose Luis; Tato, Patricia
Source:
Avian pathology 2003 v.32 no.2 pp. 193-203
ISSN:
0307-9457
Subject:
chickens; survival rate; concanavalin A; lethal dose 50; Salmonella Gallinarum; antigens; antibodies; lymphocytes; thymidine; salmonellosis; genotype; sodium chloride; immune response; vaccination; lymphocyte proliferation; Naked Neck
Abstract:
... The immune responses of indigenous naked neck (NaNa and Nana) and normally feathered (nana) chickens against a Salmonella Gallinarum (SG) infection were evaluated and compared withth ose of a commercial line (B-380). Groups of 28-day-old chickens (NaNa, Nana, nana, and B-380) were immunized orally and subcutaneously with 50 μg of SG antigens. Control non-immunized animals were inoculated withsteri ...
DOI:
10.1080/0307945021000071605

9. Detection of egg drop syndrome virus antigen or genome by enzyme-linked immunosorbent assay or polymerase chain reaction

Author:
Raj, G.D.; Sivakumar, S.; Matheswaran, K.; Chandrasekhar, M.; Thiagarajan, V.; Nachimuthu, K.
Source:
Avian pathology 2003 v.32 no.5 pp. 545-550
ISSN:
0307-9457
Subject:
chickens; ducks; enzyme-linked immunosorbent assay; egg drop syndrome; polymerase chain reaction; Adenoviridae
Abstract:
... Mouse monoclonal antibodies (mAbs) were produced against an Indian isolate of egg drop syndrome (EDS) virus and characterized. Four hybridoma clones were secreting mAbs that bound to a 100 kDa protein, presumably the hexon protein. These mAbs were found to cross-react with two other Indian isolates of EDS virus and to the reference UK 127 strain. Three of these mAbs were mapped to the same epitope ...
DOI:
10.1080/0307-9450310001596719
PubMed:
14522711

10. Development of a DIVA (Differentiating Infected from Vaccinated Animals) strategy using a vaccine containing a heterologous neuraminidase for the control of avian influenza

Author:
Capua, Ilaria; Terregino, Calogero; Cattoli, Giovanni; Mutinelli, Franco; Rodriguez, J.F.
Source:
Avian pathology 2003 v.32 no.1 pp. 47-55
ISSN:
0307-9457
Subject:
Baculoviridae; antibodies; avian influenza; birds; emulsions; fluorescent antibody technique; hemagglutinins; muscles; oils; poultry; sialidase; vaccination; vaccines; viral shedding; viremia; viruses
Abstract:
... The present paper reports of the development and validation of a control strategy for avian influenza infections in poultry. The "DIVA" (Differentiating Infected from Vaccinated Animals) strategy is based on the use of an inactivated oil emulsion vaccine containing the same haemagglutinin (H) subtype as the challenge virus, but a different neuraminidase (N). The possibility of using the heterologo ...
DOI:
10.1080/0307945021000070714

11. Diagnosing Clostridium perfringens-associated nectrotic enteritis in broiler flocks by an immunoglobulin G anti-alpha-toxin enzyme-linked immnosorbent assay

Author:
Lovland, A.; Kaldhusdal, M.; Reitan, L.J.
Source:
Avian pathology 2003 v.32 no.5 pp. 527-534
ISSN:
0307-9457
Subject:
broiler chickens; enzyme-linked immunosorbent assay; immunoglobulin G; enteritis; serodiagnosis; Clostridium perfringens
Abstract:
... The tools available for monitoring necrotic enteritis caused by Clostridium perfringens in broiler chickens have been limited, particularly for identifying subclinical disease. In this study, a modified enzyme-linked immunosorbent assay was used to quantify levels of specific immunoglobulin G to C. perfringens alpha-toxin in serum from broilers. We found significantly higher antibody levels in bro ...
DOI:
10.1080/0307945031000154134

12. Direct (non-vector) transmission of West Nile virus in geese

Author:
Banet-Noach, C.; Simanov, L.; Malkinson, M.
Source:
Avian pathology 2003 v.32 no.5 pp. 489-494
ISSN:
0307-9457
Subject:
geese; West Nile virus; disease transmission
Abstract:
... During a recent epizootic, losses due to West Nile virus (WNV) infection in young goose flocks were estimated to be far greater than expected if mosquito-borne transmission was the principal route of infection. Contact transmission was investigated experimentally as an alternative explanation. A group of 10, 3-week-old geese were inoculated subcutaneously and placed in one insect-proof room with 2 ...
DOI:
10.1080/0307945031000154080
PubMed:
14522704

13. Effects of Senna occidentalis on chick bursa of Fabricius

Author:
Silva, T.C.; Gorniak, S.L.; Oloris, S.C.S.; Raspantini, P.C.; Haraguchi, M.; Dagli, M.L.Z.
Source:
Avian pathology 2003 v.32 no.6 pp. 633-637
ISSN:
0307-9457
Subject:
chicks; Senna occidentalis; toxicity; bursa of Fabricius; spleen; seeds; weight loss
Abstract:
... Senna occidentalis (L) Link (formerly called Cassia occidentalis) is a toxic leguminous plant found ubiquitously as a contaminant of crops. All parts of the plant are toxic, but most of the S. occidentalis toxicity is found in the seeds. S. occidentalis has been shown to be toxic to several animal species, causing degenerative lesions mainly in muscles. This is the first report describing alterati ...
DOI:
10.1080/03079450310001610622
PubMed:
14676015

14. Effects of cyclosporin A on the immune responses and pathogenesis of a virulent strain of Mycoplasma gallisepticum in chickens

Author:
Ganapathy, K.; Bradbury, J.M.
Source:
Avian pathology 2003 v.32 no.5 pp. 495-502
ISSN:
0307-9457
Subject:
chickens; cyclosporins; immune response; pathogenesis; T-lymphocytes; Mycoplasma gallisepticum
Abstract:
... Immune responses to the virulent S6 strain of Mycoplasma gallisepticum in immunocompetent and cyclosporin A (CsA)-treated specific pathogen free chickens were investigated, and pathogenesis of the M. gallisepticum strain was also examined. Ten-day-old specific pathogen free chickens were inoculated by eye-drop with M. gallisepticum, and a control uninfected group was inoculated with mycoplasma bro ...
DOI:
10.1080/0307945031000154099
PubMed:
14522705

15. Evaluation of a nucleoprotein-based enzyme-linked immunosorbent assay for the detection of antibodies against infectious bronchitis virus

Author:
Chen, H.Y.; Coote, B.; Attree, S.; Hiscox, J.A.
Source:
Avian pathology 2003 v.32 no.5 pp. 519-526
ISSN:
0307-9457
Subject:
poultry; Infectious bronchitis virus; enzyme-linked immunosorbent assay; antibody detection
Abstract:
... As an immunogen of the coronavirus, the nucleoprotein (N) is a potential antigen for the serological monitoring of infectious bronchitis virus (IBV). In this report, recombinant N protein from the Beaudette strain of IBV was produced and purified from Escherichia coli as well as Sf9 (insect) cells, and used for the coating of enzyme-linked immunosorbent assay (ELISA) plates. The N protein produced ...
DOI:
10.1080/0307945031000154125
PubMed:
14522708

16. Evidence for virus closely related to avian myeloblastosis-associated virus type 1 in a commercial stock of chickens

Author:
Spencer, J. Lloyd; Benkel, Bernhard; Chan, Maria; Nadin-davis, Susan
Source:
Avian pathology 2003 v.32 no.4 pp. 383-390
ISSN:
0307-9457
Subject:
Avian leukosis virus; chickens; genes; nucleotides; phylogeny; polymerase chain reaction; sequence analysis; viruses
Abstract:
... A two-round nested polymerase chain reaction assay detected Rous associated virus-1 (RAV-1), a prototype laboratory strain of avian leukosis virus of subgroup A (ALV-A). Surprisingly, the test failed to detect three field isolates of ALV-A but did detect virus in one commercial stock of chickens (stock F). The sequence analysis of a core of 290 nucleotides of the env gene gave evidence that the vi ...
DOI:
10.1080/0307945031000121130

17. Experimental infections with rifampicin-resistant Clostridium perfringens strains in broiler chickens using isolator facilities

Author:
Pedersen, Karl; Bjerrum, Lotte; Nauerby, Birgitte; Madsen, Mogens
Source:
Avian pathology 2003 v.32 no.4 pp. 401-408
ISSN:
0307-9457
Subject:
Clostridium perfringens; broiler chickens; chicks; culture media; intestines; models; mortality; necrotic enteritis
Abstract:
... Experimental infection studies were carried out on the ability of three Clostridium perfringens type A rifampicin-resistant strains to colonize the intestinal tract of broiler chickens kept in isolators from 1-day-old. Various doses of C. perfringens were given orally at 22 days, 9 days or at 1 day old. At 22 days none of the strains, given in doses of approximately 10(10) colony-forming units, ca ...
DOI:
10.1080/0307945031000121158

18. Expression of type X collagen, Indian hedgehog and parathyroid hormone related-protein in normal and tibial dyschondroplastic chick growth plates

Author:
Webster, S.V.; Farquharson, C.; Jefferies, D.; Kwan, A.P.L.
Source:
Avian pathology 2003 v.32 no.1 pp. 69-80
ISSN:
0307-9457
Subject:
bone formation; cartilage; cell differentiation; chickens; chicks; chondrocytes; collagen; dyschondroplasia; gene expression; growth plate; immunohistochemistry; in situ hybridization; messenger RNA; osteoblasts; parathyroid hormone; tibia
Abstract:
... Tibial dyschondroplasia (TD) is a form of aberrant endochondral ossification in chickens, in that a plug of avascular cartilage (TD lesion) is formed within the growth plate. Histologically, the lesion is filled with apparently transitional chondrocytes that have been unable to differentiate to hypertrophic chondrocytes. We have examined the spatial expression of mRNAs for type X collagen, Indian ...
DOI:
10.1080/030794502/000070741

19. First report on Cryptococcus laurentii associated with feather loss in a glossy starling (Lamprotornis chalybaeus)

Author:
Decostere, A.; Hermans, K.; Baere, T. de; Pasmans, F.; Haesebrouck, F.
Source:
Avian pathology 2003 v.32 no.3 pp. 309-311
ISSN:
0307-9457
Subject:
Cryptococcus laurentii; beak; case studies; drinking water; feathers; fluconazole; odors; pigeons
Abstract:
... Although Cryptococcus laurentii has been isolated from fresh droppings and cloaca samples from feral pigeons, it has never before been associated with an actual disease condition in birds. This case study deals with the first report on C. laurentii associated with feather loss in a glossy starling (Lamprotornis chalybaeus). The bird exhibited patchy feather loss, especially around the back and bea ...
DOI:
10.1080/0307945031000097921

20. Functional comparison of heterophils isolated from commercial broiler chickens

Author:
Swaggerty, Christina L.; Pevzner, Igal Y.; Lowry, Virginia K.; Farnell, Morgan B.; Kogut, Michael H.
Source:
Avian pathology 2003 v.32 no.1 pp. 95-102
ISSN:
0307-9457
Subject:
broiler chickens; innate immunity; Salmonella Enteritidis; roosters; progeny; heterophils; reciprocal crosses
Abstract:
... Heterophils from two pure lines (A and B) of commercial broiler chickens were isolated on days 1, 4, and 7 post-hatch to evaluate their ability to (1) phagocytose Salmonella enteritidis (SE) (2) degranulate when exposed to immune-IgG opsonized SE, and (3) produce an oxidative burst. On days 1 and 4, heterophils from line A were functionally more efficient compared to heterophils from line B (p<0.0 ...
DOI:
10.1080/0307945021000070769