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Anwar Yesuf Shifaw, Teka Feyera, Stephen William Walkden-Brown, Brendan Sharpe, Timothy P. Elliott, Isabelle Ruhnke
Gastrointestinal helminth parasites are a concern for the poultry industry worldwide as they can affect the health, welfare, and production performance. A systematic review of the prevalence over time in different countries may improve our understanding of gastrointestinal helminthiasis in chickens and subsequently lead to improved poultry health. The aim of this systematic review and meta-analysis was to provide an overview of the published information regarding the epidemiology and the diagnostic approaches of chicken helminth infection. Six databases were searched for studies, and a total of 2,985 articles published between 1942 and 2019 were identified and subsequently screened for eligibility using title or abstract and full text assessment, resulting in 191 publications to be used in the study. Postmortem diagnostics (73.8%) and the flotation technique (28.8%) were commonly used to detect helminth infections with a pooled prevalence of 79.4% ranging from 4 to 100%. More than 30 helminth species in chicken populations were identified including Ascaridia galli (35.9%), Heterakis gallinarum (28.5%), Capillaria spp. (5.90%), and Raillietina spp. (19.0%) being the most prevalent. The reported prevalence of helminth infection decreased over time in developing countries while it increased in the developed world. Chicken kept in backyard and free-range systems had a markedly higher pooled prevalence of helminth infection (82.6 and 84.8%, respectively) than those housed in cage production systems (63.6%). This may indicate the need for more rigorous control and prevention measures in free-range and backyard production systems using regular deworming coupled with access to early and accurate diagnosis allowing for early intervention.
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Shifaw, A. Y., Feyera, T., Walkden-Brown, S. W., Sharpe, B., Elliott, T. P., & Ruhnke, I. (2021). Global and regional prevalence of helminth infection in chickens over time: a systematic review and meta-analysis. Poultry Science, 100(5), 101082. https://doi.org/10.1016/j.psj.2021.101082
Shifaw, Anwar Yesuf, et al. "Global and regional prevalence of helminth infection in chickens over time: a systematic review and meta-analysis." Poultry Science, vol. 100, no. 5, 2021, pp. 101082, https://doi.org/10.1016/j.psj.2021.101082.
Shifaw, Anwar Yesuf, Teka Feyera, Stephen William Walkden-Brown, Brendan Sharpe, Timothy P. Elliott, and Isabelle Ruhnke. "Global and regional prevalence of helminth infection in chickens over time: a systematic review and meta-analysis." Poultry Science 100, no. 5 (2021): 101082. https://doi.org/10.1016/j.psj.2021.101082.
Shifaw A. Y., Feyera T., Walkden-Brown S. W. [и др.] Global and regional prevalence of helminth infection in chickens over time: a systematic review and meta-analysis // Poultry Science. — 2021. — Vol. 100, № 5. — P. 101082. — URL: https://doi.org/10.1016/j.psj.2021.101082
@article{shifaw2021global,
title = {{Global and regional prevalence of helminth infection in chickens over time: a systematic review and meta-analysis}},
author = {Anwar Yesuf Shifaw and Teka Feyera and Stephen William Walkden-Brown and Brendan Sharpe and Timothy P. Elliott and Isabelle Ruhnke},
journal = {Poultry Science},
year = {2021},
volume = {100},
number = {5},
pages = {101082},
doi = {10.1016/j.psj.2021.101082},
url = {https://doi.org/10.1016/j.psj.2021.101082}
}TY - JOUR AU - Shifaw, Anwar Yesuf AU - Feyera, Teka AU - Walkden-Brown, Stephen William AU - Sharpe, Brendan AU - Elliott, Timothy P. AU - Ruhnke, Isabelle TI - Global and regional prevalence of helminth infection in chickens over time: a systematic review and meta-analysis JO - Poultry Science VL - 100 IS - 5 SP - 101082 PY - 2021 DA - 2021/03/05 DO - 10.1016/j.psj.2021.101082 UR - https://doi.org/10.1016/j.psj.2021.101082 ER -
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