Exotic Newcastle Disease in a Game Chicken Flock

Crespo, Rocio; Shivaprasad, H. L.; Woolcock, P. R.; Chin, Richard P; Davidson-York, Dorothy; Tarbell, R.

doi:10.2307/1592629

Cited by 27 publications

(17 citation statements)

References 6 publications

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“…Most commonly observed postmortem lesions were pinpoint hemorrhages at the tip of proventricular glands, hemorrhagic ulcers in the intestinal wall and caecal tonsils, petechial hemorrhage in the colon, hemorrhagic lungs, tracheitis with congestion and catarrhal exudates. These findings corroborate with the findings of Kotani et al, Crespo et al, Talha et al and Pazhanivel et al [19][20][21][22]. The prevalence of ND observed in the study is, however, lower than the reports of Biswas et al on chickens including Sonali reared under backyard system in Bangladesh [23,24].…”

Section: Discussionsupporting

confidence: 91%

Comparative Study on Newcastle Disease and Infectious Bursal Disease in Chicken Submitted to Upazilla Veterinary Hospital, Bogra Sadar, Bangladesh

Sen¹,

Torab²,

Sm³

et al. 2017

J Vet Sci Technol

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The study was conducted on 123 chickens submitted to Upazila Veterinary Hospital, Bogra Sadar for the detection of Newcastle disease (ND) and Infectious Bursal disease (IBD) during the period of 9th February to 8th April 2017. On the basis of history and postmortem examination findings, the prevalence of ND and IBD was 8.13% and 23.58%, respectively. The morbidity was 6.19% and 3.69% in ND and IBD, respectively. The mortality of ND and IBD was 4.00% and 2.009%, respectively. The main pathological lesions observed in this study were pinpointed hemorrhage in the proventricular gland, thickness of proventriculus wall, hemorrhage in the duodenum in case of ND and hemorrhages on thigh and breast muscles; inflamed, edematous, hyperemic and hemorrhagic bursa of Fabricious in IBD. The study also showed that the chickens of more than 30 days old and chickens within 15-30 days old were highly susceptible to ND (27%) and IBD (44%), respectively.

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Section: Discussionsupporting

confidence: 91%

Comparative Study on Newcastle Disease and Infectious Bursal Disease in Chicken Submitted to Upazilla Veterinary Hospital, Bogra Sadar, Bangladesh

Sen¹,

Torab²,

Sm³

et al. 2017

J Vet Sci Technol

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“…Studies overseas have identifi ed the backyard poultry sector as often the fi rst to be affected in the event of incursions of infectious diseases such as HPAI and ND (Crespo et al 1999;Capua et al 2002). Because of links through common suppliers and activities, backyard poultry fl ocks may pose a risk to commercial poultry, especially when biosecurity measures on commercial poultry farms are poor (Rawdon et al 2007(Rawdon et al , 2008.…”

Section: Discussionmentioning

confidence: 99%

A cross-sectional study of ownership of backyard poultry in two areas of Palmerston North, New Zealand

Lockhart

Stevenson

Tg³

2010

New Zealand Veterinary Journal

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AIMS:To determine the proportion of residential land parcels with backyard poultry in an urban and urban-rural fringe area of provincial New Zealand. To document key husbandry and biosecurity practices of owners of backyard poultry, and to identify factors that might assist animal health authorities in locating backyard poultry fl ocks in the event of an infectious disease emergency. METHODS:A cross-sectional survey was undertaken, in which residents of 449 land parcels in an urban and urban-rural fringe area within and adjacent to the city of Palmerston North, respectively, were visited between February and November 2006. Residents were asked if backyard poultry were kept on the premises. Details recorded for those that kept poultry included the type and number of birds kept, and details of management and biosecurity practices. The geographical distribution of poultry-positive land parcels was assessed for evidence of spatial clustering. RESULTS:Backyard poultry were kept on 3.5 (95% CI=2.1-5.0)% of land parcels; 1.6 (95% CI=0.7-3.4)% in the urban area and 18.9 (95% CI=11.6-29.3)% in the urban-rural fringe area. There were no signifi cant clusters of poultry-positive land parcels in either area. On all poultry-positive parcels birds were allowed, for at least a portion of the day, to range freely over the property. Three poultry-positive land parcels were within a distance of 1 km of a commercial poultry enterprise in the urban-rural fringe area. Most owners of backyard poultry used feed prepared commercially. CONCLUSIONS:The prevalence of ownership of backyard poultry in this area of New Zealand was low, and varied according to classifi cation of the land, viz urban, or urban-rural fringe. The close proximity of backyard fl ocks to the single commercial enterprise in the urban-rural fringe area reiterates the importance of strict biosecurity measures on commercial farms. In the event of an infectious disease emergency, it is proposed that a sampling frame of owners of backyard poultry might be rapidly obtained by contacting suppliers of commercial feed.

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“…43 Transmission electron microscopy revealed intracytoplasmic inclusion bodies suggestive of paramyxovirus in endothelial cells in blood vessel from the esophagus of an NDV-infected game chicken. 14 Several investigators have detailed many different techniques [26][27][28]30 to detect NDV-induced apoptosis. Most of the studies were performed in cell culture or in vivo with the APMV-1 Texas GB strain.…”

Section: Discussionmentioning

confidence: 99%

Pathogenesis of Six Pigeon-Origin Isolates of Newcastle Disease Virus for Domestic Chickens

et al. 2002

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Abstract. The pathogenesis of six pigeon-origin isolates of Newcastle disease virus (NDV) was investigated in chickens. Four isolates were previously defined as the variant pigeon paramyxovirus 1 (PPMV-1), and two isolates were classified as avian paramyxovirus 1 (APMV-1). Birds inoculated with PPMV-1 isolates were euthanatized, and tissue samples were collected at 2, 5, and 10 days postinoculation (DPI). Birds inoculated with APMV-1 isolates died or were euthanatized, and tissue samples were collected at 2, 4, and 5 DPI. Tissues were examined by histopathology, immunohistochemistry (IHC) for the presence of NDV nucleoprotein, and in situ hybridization (ISH) for the presence of viral mRNA for the matrix gene. Spleen sections were stained by the terminal deoxynucleotidyl transferase-mediated dUTP nick end-labeling (TUNEL) assay and by IHC using an anti-active caspase-3 antibody (IHC-Casp) to detect apoptotic cells. Brain sections of PPMV-1-infected birds were examined by IHC to detect T and B lymphocytes and glial fibrillary acidic protein (GFAP). Histologically, birds inoculated with PPMV-1 isolates had marked lesions in the heart and brain. Presence of viral nucleoprotein and viral mRNA in the affected tissues was confirmed by IHC and ISH, respectively. Numerous reactive astrocytes were observed in brain sections stained for GFAP. Among all the isolates, the IHC-Casp demonstrated that apoptosis was very prominent in the ellipsoid-associated cells of the spleen at 2 DPI. Results of the TUNEL assay indicated that apoptotic cells were prominent at 5 DPI and were more randomly distributed. The clinical signs and gross and histopathologic changes observed in the APMV-1-infected birds were characteristic of an extensive infection with highly virulent NDV evident by IHC.

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Exotic Newcastle Disease in a Game Chicken Flock

Cited by 27 publications

References 6 publications

Comparative Study on Newcastle Disease and Infectious Bursal Disease in Chicken Submitted to Upazilla Veterinary Hospital, Bogra Sadar, Bangladesh

Comparative Study on Newcastle Disease and Infectious Bursal Disease in Chicken Submitted to Upazilla Veterinary Hospital, Bogra Sadar, Bangladesh

A cross-sectional study of ownership of backyard poultry in two areas of Palmerston North, New Zealand

Pathogenesis of Six Pigeon-Origin Isolates of Newcastle Disease Virus for Domestic Chickens

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