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KMID : 1023520220450020117
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Korean Journal of Veterinary Service
2022 Volume.45 No. 2 p.117 ~ p.124
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Application of chemical treatment for cattle and chicken carcasses for the control of livestock infectious diseases
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Lee Taek-Geun
Oh Yeon-Su
Ko Young-Seung
Bae Da-Yun
Tark Dong-Seob
Rim Chae-kwang
Cho Ho-Seong
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Abstract
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In the event of an outbreak of a livestock epidemic, it has been considered that the existing burial-centered carcass disposal method should be improved ecofriendly for prevention of leachate and odors from burial basically in regard of pathogen inactivation. Therefore, the aim of this study is whether it was possible to treat the carcass of cattle and chickens using the chemical carcass treat-ment method. It was conducted to establish detailed treatment standards for the chemical treatment method of cattle and chicken carcasses based on the results of the proof of the absence of infectious diseases in cattle chickens. After inoculating cattle carcass with 10 pathogens (foot and mouth disease virus, bovine viral diarrhea virus, Mycobacterium bovis , Mycobacterium avium subsp. paratuber-culosis , Brucella abortus , Bacillus anthracis , Clostridium chauvoei , Clostridium perfringens , Esche-richia coli , and Salmonella Typhimurium) and chicken carcasses with low pathogenic avian influenza virus, Clostridium perfringens type C, E. coli and Salmonella Typhimurium, these were treated at 90°C for 5 hours in a potassium hydroxide liquid solution corresponding to 15% of the body weight. This method liquefies all cadaveric components and inactivates all inoculated pathogens by PCR and culture. Based on these results, it was possible to prove that chemical treatment of cattle and chicken carcasses is effective in killing pathogens and is a safe method without the risk of disease transmis-sion. The chemical treatment method of livestock carcasses can be suggested as an alternative to the current domestic burial-centered livestock carcass treatment method, preventing environmental pol-lution, and contributing to public health.
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KEYWORD
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Alkaline hydrolysis, Biosecurity, Cattle carcass, Chicken carcasses, Livestock infectious disease
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