양돈장의 소모성질병 확산 분석을 위한 현장 모니터링 및 공기유동학적 분석 = Aerodynamic Approaches for Estimation of Waste Disease Spread in Pig Farm through Airborne Contaminants

다국어 초록 (Multilingual Abstract)

Pig chronic wasting disease, including porcine reproductive and respiratory syndrome (PRRS) and postweaning multisystemic wasting syndrome (PMWS), have made a continuous economic damage in pig farms. Airborne spread of livestock viruses are an important spread factor which is difficult to analyze due to invisible airflow and limitation of measurement. The objective of this study is to analyze airborne disease spread between buildings in the experimental pig farm by means of field experiment and computational fluid dynamics (CFD). The field experiments were conducted to capture airborne virus using air sampler and teflon filter along multi points in the experimental pig farm. The samples were tested in terms of virus detection resulting in positive reaction for PRRS and PCV-2 viruses, which can be a firm evidence of airborne virus spread. The CFD simulation model was developed by considering complex topography, wind conditions, building arrangement, and ventilation systems and was used to analyze airborne virus spread according to different wind conditions. The CFD computed result showed a possibility of airborne virus spread via livestock aerosol from infected pig house to neighboring pig houses according to wind directions. The CFD simulation technique is expected to provide significant data for estimating and making a counterplan against airborne disease spread.

참고문헌 (Reference)

1 송상현, "추적가스 실험을 통한 축사 내 질병 확산 분석" 한국농공학회 54 (54): 37-45, 2012

2 서일환, "고병원성 조류인플루엔자 (HPAI)의 에어로졸을 통한 공기 전파 예측을 위한 공기유동학적 확산 모델 연구" 한국농공학회 53 (53): 29-36, 2011

3 Stark K. D. C., "The Role of Infectious Aerosols in Disease Transmission in Pigs" 158 : 164-181, 1999

4 Brockmeier, S. L., "Polymicrobial Diseases" ASM Press 2002

5 Robertson, I. B, "New pig disease update"Epidemiology of PRRS"" 29 : 186-187, 1992

6 Weber, T. P., "Inactivation of influenza a viruses in the environment and modes of transmission : a critical review" 57 (57): 361-373, 2008

7 Krumkamp R., "Impact of public health interventions in controlling the spread of SARS : 6. Modelling of intervention scenarios" 212 (212): 67-75, 2009

8 Tsukamoto, K., "Impact of different husbandry conditions on contact and airborne transmission of H5N1 highly pathogenic avian influenza virus to chickens" 51 (51): 129-132, 2007

9 Gloster, J., "Foot-and-mouth disease : Measurements of aerosol emission from pigs as a function of virus strain and initial dose" 177 : 374-380, 2008

10 Kristensen C, S., "Experimental airborne transmission of PRRS virus" 99 : 197-202, 2004

11 Park, S. I., "An investigation of real conditions of pig disease in hog farms all the country" Korea Pork Producers Association 53-64, 2012

12 Spekreijse, D., "Airborne transmission of a highly pathogenic avian influenza virus strain H5N1 between groups of chickens quantified in an experimental setting" 152 : 88-95, 2011

13 Mayer. D., "A Lagrangian particle model to predict the airborne spread of footand-mouth disease virus" 42 : 466-479, 2008

14 허덕 Huh, Duk, "<연구자료>돼지 소모성질병에 의한 농가소득 변화 분석" 한국농촌경제연구원 31 (31): 77-88, 2008