Serological Investigation of Newcastle Disease in Selected Districts of Buno Bedelle Zone, Ethiopia

Mamo, Tamirat; Yimer, Lama

doi:10.2147/vmrr.s327892

Cited by 7 publications

(7 citation statements)

References 16 publications

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“…Previous studies in Ethiopia have shown that NDV has a seroprevalence between 5.9 and 30% in village chickens that were presumably unvaccinated ( Nasser et al, 2000 ; Tadesse et al, 2005 ; Zeleke et al, 2005 ; Chaka et al, 2012 ; Mazengia, 2012 ; Chaka et al, 2013 ; Sori et al, 2016 ; Mamo and Yimer 2021 ). Serological evidence of IBV and aMPV subtype B has been reported in imported chicken breeds at Debre Zeit Agricultural Research Centre ( Hutton et al, 2017 ), but the occurrence of those pathogens outside this research facility is not known.…”

Section: Introductionmentioning

confidence: 99%

Seroprevalence of major respiratory diseases of chickens in central Ethiopia in different chicken production systems

Habte¹,

Gerber²,

Ibrahim³

et al. 2022

Poultry Science

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Section: Introductionmentioning

confidence: 99%

Seroprevalence of major respiratory diseases of chickens in central Ethiopia in different chicken production systems

Habte¹,

Gerber²,

Ibrahim³

et al. 2022

Poultry Science

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“…Taking advantage of the large proportion of poultry in these countries is a good way to supplement farmers' incomes because it requires minimal space and investment, and can be conducted by less skilled farmers ( 2 ). In Ethiopia, over 99% of the total estimated chickens are produced by village poultry, while only 1% come from intensive exotic breeds reared under intensive management systems ( 3 ). For a long time, chickens have been reared in villages for common purposes, such as egg production, meat production, and sale ( 4 , 5 ).…”

Section: Introductionmentioning

confidence: 99%

Sero-prevalence of Newcastle disease and associated risk factors in chickens at backyard chicken production Kindo Koisha, Wolaita zone, Southern Ethiopia

Wodajo

Mohammed²,

Tora³

et al. 2023

Front. Vet. Sci.

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Newcastle disease (ND) is a serious infectious disease of poultry caused by virulent strains of Avian Paramyxovirus-1 and has a substantial impact on villages where people's livelihood depends upon poultry farming in several developing countries including Ethiopia. In the district of the study area, no previous studies have been conducted. Thus, the aim of the present study was to estimate individual and household flock level seroprevalence and risk factors for ND in unvaccinated backyard chickens in Kindo Koisha district, Wolaita zone, Ethiopia. A cross-sectional study design was conducted. For the study, household flocks were sampled as a cluster, and backyard chickens within the cluster with an age of more than 3 months were sampled. A total of 598 blood samples were collected from 86 household flocks during the study period. Serum samples were tested for ND antibodies using an Indirect-Enzyme Linked Immuno Sorbent Assay. The overall seroprevalence of ND virus at individual and flock level was 17.06% (95% CI: 14.25–20.29%) and 73.26% (95% CI: 62.79–81.64%), respectively. The ND seropositivity and associated risk factors were assessed at the individual bird and flock level by using ordinary and mixed effect logistic regression, respectively. Ordinary logistic regression revealed that crossbreed chickens had significantly higher odds of ND seropositivity than local breeds, with an odds ratio of 2.15 (95% CI: 1.54–3.00; p < 0.001). The odds of ND seropositivity was significantly higher in backyard chickens which belongs flock size >9 in comparison to <9 with an odds ratio of 3.7 (95% CI: 1.12–12.30; p < 0.031). The potential flock level risk factors related to ND seropositivity in this study were flock size, chicken house cleaning frequency, water source for chickens, dead chicken disposal practice, and distance to the next neighbor household, mixing with wild birds and owning pets. In conclusion, the current study generates significant information on the seroprevalence and the potential risk factors associated with ND at individual and flock level in Kindo Koisha district, Wolaita zone. Consequently, ND vaccination campaigns should be launched, and effective extension programs should also be provided to raise awareness about the disease.

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“…23,24 In this study, antibody against ND was detected in a higher proportion of the samples (68%) even though the sampled birds were not vaccinated (Table 1). Similarly, antibodies were detected from unvaccinated birds located at Melekoza district of Gofa zone, 25 Sodo Zuria district; 26 Central Ethiopia; 27 Adama; 13 Buno Bedelle zone; 16 Eastern Shewa zone; 28 Wolaita zone 29 and Sebeta area. 15 This elicited the endemic nature of the disease over a wide area of the country which requires intervention to control.…”

Section: Discussionmentioning

confidence: 94%

“…9,10 In Ethiopia, it has been reported long ago, 11,12 and different reports indicated that the disease is endemic to the country. [13][14][15][16] However, studies usually focus on some areas and production system (i. e commercial farms in the Rift Valley) and the distribution and the effect of the disease in semiintensive and backyard production systems is less studied. Meanwhile, in many African countries, studies indicated that the disease is prevalent even in backyard poultry.…”

Section: Introductionmentioning

confidence: 99%

Molecular Detection and Serological Investigation of Newcastle Disease in Intensive, Semi-Intensive, and Backyard Production Systems in Central and Southwestern Areas of Ethiopia

Emeru,

Dame,

Desta

2024

VMRR

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Purpose The purpose of this research is to detect Newcastle disease virus and to assess the seropositivity among backyard, semi-intensive, and intensive farms located in central and southwestern areas of Ethiopia. Material and Methods A total of 239 oropharyngeal and cloacal swab samples were collected from symptomatic birds found in Holeta, Burayu, Jimma towns as well as Seka Chekorsa and Nadhigibe woredas of Jimma Zone. In addition, ninety blood samples were collected from wing veins of unvaccinated birds found in the study areas of Jimma zone. Side-by-side information related to risk factors estimated to contribute to the susceptibility of the disease was collected by interviewing owners of sampled birds. Reverse transcription polymerase-chain reaction (RT-PCR) was conducted to detect NDV. Likewise, Enzyme-linked immunosorbent assay (ELISA) was performed to determine the seropositivity of ND. Results The proportion of samples where NDV was detected was 24.6%. Similarly, 68.9% of the sampled birds were seropositive. It was observed that adult birds were more likely to encounter the disease than youngs (OR = 11.6; 95% CI: 4.0–33.3; P = 0.000). Birds owned by respondents who leave diseased birds in the flock were more likely infected (OR = 6.2; 95% CI: 1.8–21.2; P=0.004) as compared to those isolated and mode of disposal of dead chicken significantly affect exposure (OR = 0.13; 95% CI: 0.10–4.88; P = 0.044). Likewise, access to veterinary services highly likely reduces susceptibility to the disease (OR = 12.4; 95% CI: 3.2–46.9; P = 0.000). It was also found that birds farmed intensively were the most at risk (OR = 2.8; 95% CI: 0.58–13.71; P = 0.199). Conclusion Detection of ND from a significant proportion of sampled birds and their high seropositivity percentage revealed the circulation of the virus in the study areas.

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Serological Investigation of Newcastle Disease in Selected Districts of Buno Bedelle Zone, Ethiopia

Cited by 7 publications

References 16 publications

Seroprevalence of major respiratory diseases of chickens in central Ethiopia in different chicken production systems

Seroprevalence of major respiratory diseases of chickens in central Ethiopia in different chicken production systems

Sero-prevalence of Newcastle disease and associated risk factors in chickens at backyard chicken production Kindo Koisha, Wolaita zone, Southern Ethiopia

Molecular Detection and Serological Investigation of Newcastle Disease in Intensive, Semi-Intensive, and Backyard Production Systems in Central and Southwestern Areas of Ethiopia

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