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You searched for: Journal Avian pathology Remove constraint Journal: Avian pathology Publication Year 2003 Remove constraint Publication Year: 2003 Source 2003 v.32 no.4 Remove constraint Source: 2003 v.32 no.4
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1. 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

2. 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

3. Genetic and antigenic analysis of Newcastle disease viruses from recent outbreaks in Taiwan

Author:
Lin, Maw Y.; Liu, Hung J.; Ke, Guan M.
Source:
Avian pathology 2003 v.32 no.4 pp. 345-350
ISSN:
0307-9457
Subject:
Newcastle disease; Newcastle disease virus; amino acid sequences; blood serum; chickens; death; genes; neutralization; nucleotide sequences; phylogeny; serotypes; viruses; Taiwan
Abstract:
... Portions of the haemagglutinin-neuraminidase (HN) and fusion protein (F) genes of Newcastle disease virus (NDV) isolated from recent outbreaks in Taiwan were amplified and sequenced. These isolates were velogenic, based on the amino acid sequences of the F protein cleavage site and the mean death time in chicken embryos. All the recent viruses contained the amino acid sequences (112)RRQKR(116) for ...
DOI:
10.1080/0307945031000121086

4. Infectious bronchitis virus replication in the chicken embryo related cell line

Author:
Ferreira, Helena L.; Pilz, Daniela; Mesquita, Ligia G.; Cardoso, Tereza
Source:
Avian pathology 2003 v.32 no.4 pp. 413-417
ISSN:
0307-9457
Subject:
Infectious bronchitis virus; RNA; cell fusion; chicken eggs; chickens; cytopathogenicity; electron microscopy; fluorescence; fluorescent antibody technique; kidney cells; reverse transcriptase polymerase chain reaction; titration; virus replication; viruses
Abstract:
... The susceptibility of the chicken embryo related (CER) cell line to infectious bronchitis virus (IBV M41) was characterized after five consecutive passages in CER cells. Virus replication was monitored by cytopathic effect observation, electron microscopy, indirect immunofluorescence, and reverse transcription polymerase chain reaction (RT-PCR). At 96 h post-infection (p.i.), the cytopathic effect ...
DOI:
10.1080/0307945031000121167

5. Investigation of the unstable attenuation exhibited by a chicken anaemia virus isolate

Author:
Todd, Daniel; Creelan, Julie L.; Connor, Thomas J.; Ball, Neris W.; Scott, Alistair N.J.; Meehan, Brian M.; Mckenna, Gerard F.; Mcnulty, M.S.
Source:
Avian pathology 2003 v.32 no.4 pp. 375-382
ISSN:
0307-9457
Subject:
Chicken anemia virus; alanine; aspartic acid; birds; cell culture; chicks; coat proteins; mutation; nucleotide sequences; pathogenicity; sequence analysis; viruses
Abstract:
... An attenuated chicken anaemia virus (CAV) isolate, cloned isolate 10, which was molecularly cloned from the Cuxhaven-1 CAV after 173 cell-culture passages, was shown previously to recover pathogenicity following 10 passages in young chicks. The consensus nucleotide sequence of the ‘revertant’ (Rev) virus, present as a tissue homogenate, differed from cloned isolate 10 at a single nucleotide residu ...
DOI:
10.1080/037945031000121121

6. Marek's disease virus research in the post-sequencing era: new tools for the study of gene functions and virus–host interactions

Author:
Zelnik, Vladimir
Source:
Avian pathology 2003 v.32 no.4 pp. 323-333
ISSN:
0307-9457
Subject:
DNA; Escherichia coli; Mardivirus; Marek disease; bacterial artificial chromosomes; disease control; genes; microbial genetics; mutagenesis; turkeys; vaccines; viruses
Abstract:
... Despite the fact that the causative agent of Marek's disease was described more than 30 years ago, and that subsequently many classical biological studies have been carried out on the Marek's disease virus (MDV), detailed analysis of its gene functions has been hampered by lack of suitable research tools. Information on the primary structure of MDV-1 and its serologically related viruses, MDV-2 an ...
DOI:
10.1080/0307945031000121068

7. Newcastle disease virus fusion and haemagglutinin-neuraminidase gene motifs as markers for viral lineage

Author:
Gould, A.R.; Hansson, E.; Selleck, K.; Kattenbelt, J.A.; Mackenzie, M.; Della-porta, A.J.
Source:
Avian pathology 2003 v.32 no.4 pp. 361-373
ISSN:
0307-9457
Subject:
Newcastle disease; Newcastle disease virus; birds; genes; mutation; phylogeny; reverse transcriptase polymerase chain reaction; virulence; viruses
Abstract:
... Reverse transcriptase polymerase chain reaction was used to generate sequence data for 91 Australian Newcastle disease viruses (NDV) isolated from 1932 to 2000 covering the cleavage site of the fusion (F) protein and the C-terminus of the haemagglutinin-neuraminidase (HN) protein. Comparison of sequences at these two sites indicates distinct evolutionary relationships between these viruses. Typica ...
DOI:
10.1080/0307945031000121112

8. Pulchrosoma pulchrosoma (Trematoda: Cathaemasiidae) in Ringed kingfishers (Megaceryle torquata torquata) from Iquitos, Peru: with inferences on life-cycle features

Author:
Merino, Santiago; Martinez, Javier; Alcantara, Gabriel; Navarro, Mercedes; Mas-coma, Santiago; Rodriguez-caabeiro, Filomena
Source:
Avian pathology 2003 v.32 no.4 pp. 351-354
ISSN:
0307-9457
Subject:
Alcedinidae; Trematoda; birds; hosts; lungs; parasites; winter; zoos; Peru
Abstract:
... In the winter of 2001, four Ringed kingfishers (Megaceryle torquata torquata) were imported from Iquitos, Peru for the zoological garden Faunia in Madrid. Two individuals were necropsied, and infections by the digenean trematode Pulchrosoma pulchrosoma were discovered inside granulomas located in the lung, trachea and coelomic cavity. The life cycle of this trematode species is unknown. In one cas ...
DOI:
10.1080/0307945031000121095

9. Resistance to anticoccidial drugs of Dutch avian Eimeria spp. field isolates originating from 1996, 1999 and 2001

Author:
Peek, H.W.; Landman, W.J.M.
Source:
Avian pathology 2003 v.32 no.4 pp. 391-401
ISSN:
0307-9457
Subject:
Eimeria acervulina; aspartate transaminase; battery cages; birds; coccidiosis; diclazuril; drugs; farms; halofuginone; lasalocid; maduramicin; monensin; narasin; nicarbazin; salinomycin
Abstract:
... Fifteen Eimeria spp. field isolates sampled on Dutch broiler farms were subjected to an Anticoccidial Sensitivity Test (AST) in a battery cage study. Four isolates dated from 1996, another four from 1999 and the last seven isolates from 2001. The selected anticoccidial drugs were monensin, narasin, salinomycin, lasalocid, nicarbazin, diclazuril, halofuginone, maduramicin and meticlorpindol/methylb ...
DOI:
10.1080/0307945031000121149

10. Salmonella enterica subsp. enterica serovar Agona infections in commercial pheasant flocks

Author:
Myoujin, Yuka; Yona, Rishou; Umiji, Shuujirou; Tanimoto, Tadashi; Otsuki, Koichi; Murase, Toshiyuki
Source:
Avian pathology 2003 v.32 no.4 pp. 355-359
ISSN:
0307-9457
Subject:
Salmonella enterica subsp. enterica serovar Agona; death; farms; flocks; heterophils; pericarditis; pheasants; pulsed-field gel electrophoresis; serotypes
Abstract:
... Infections in pheasant flocks due to Salmonella enterica subsp. enterica serovar Agona occurred in a commercial pheasant farm in 1995 and 2000. S. enterica serovar Agona isolates obtained from the affected birds in both years and an environmental sample from 1998 showed an identical pulsed-field gel electrophoresis pattern, indicating that the farm was continually contaminated with the strain duri ...
DOI:
10.1080/0307945031000121103

11. The survival of avian reoviruses on materials associated with the poultry house environment

Author:
Savage, Carol E.; Jones, R.C.
Source:
Avian pathology 2003 v.32 no.4 pp. 417-423
ISSN:
0307-9457
Subject:
Reoviridae; chickens; cotton; culture media; drinking water; egg shell; feathers; feces; paper; pathogenicity; poultry housing; sampling; viruses; water pollution; water supply; wood; wood shavings
Abstract:
... Two strains of avian reovirus were tested for their ability to survive on materials common to most poultry houses. The viruses survived longest and for at least 10 days on feathers, wood shavings and chicken feed, and for the shortest periods on wood (2 days), paper and cotton (4 days). There were some differences in survivability between the two strains. In most instances, the presence of faecal ...
DOI:
10.1080/0307945031000121176

12. The use of vaccination as an option for the control of avian influenza

Author:
Capua, Ilaria; Marangon, Stefano
Source:
Avian pathology 2003 v.32 no.4 pp. 335-343
ISSN:
0307-9457
Subject:
European Union; avian influenza; biosecurity; birds; culling (animals); diagnostic techniques; disease outbreaks; economic costs; ethics; exports; farms; federal government; foot-and-mouth disease; hog cholera; human health; poultry industry; rearing; recombinant vaccines; slaughter; stakeholders; trade policy; vaccination
Abstract:
... Recent epidemics of highly contagious animal diseases included in list A of the Office International des Épizooties, such as foot-and-mouth disease, classical swine fever and avian influenza (AI), have led to the implementation of stamping-out policies resulting in the depopulation of millions of animals. The enforcement of a control strategy based on culling animals that are infected, suspected o ...
DOI:
10.1080/0307945031000121077