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http://dx.doi.org/10.5536/KJPS.2019.46.4.313

Risk Assessment of Highly Pathogenic Avian Influenza by Comparison of Biosecurity Level in Domestic Poultry Farms  

So, Hyun Hee (College of Veterinary Medicine, Chungbuk National University)
Bae, Yeonji (College of Veterinary Medicine, Chungbuk National University)
Mo, Inpil (College of Veterinary Medicine, Chungbuk National University)
Publication Information
Korean Journal of Poultry Science / v.46, no.4, 2019 , pp. 313-325 More about this Journal
Abstract
In most cases of HPAI (highly pathogenic avian influenza) outbreaks, stamping-out operations are initiated by officially designating the affected premise, which is subsequently followed by depopulation of infected flocks. The primary objective of this study was to develop an evaluation method that correlates the level of biosecurity and the risk of having an HPAI outbreak in domestic poultry farms. A total of eight farms were selected nationwide, including layer farms, broiler farms, and an animal welfare type farm. The biosecurity level of the chosen poultry farms was assessed based on a total scoring index of 183 divided into three categories, general management (51), quarantine management (106), and sanitation management (26). Conclusively, the five layer farms (JS, GE, CS, HS, OE), scored higher overall scores compared to the animal welfare farm (CH) and broiler farms (JG, LB). In terms of scoring, which adds up to a total of 183 points, most layer farms scored between 130 and 157, while the two broiler farms and the welfare farm scored 45, 75 and 70, respectively. Next, an independent HPAI risk assessment of the farms was carried out. Regarding the correlation between biosecurity levels and HPAI risks, in the farms that presented a higher overall score in terms of biosecurity and outweighed the risks of HPAI, they tended to earn more points in the quarantine management category. The results of this study suggest that a viable system for evaluating biosecurity levels can establish strong correlations with the risk of having HPAI.
Keywords
avian influenza; biosecurity grading; poultry; risk assessment; surveillance;
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