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http://dx.doi.org/10.7853/kjvs.2021.44.4.283

Validation of method for chemical treatment of pig carcasses for the control of livestock infectious diseases  

Oh, Yeonsu (College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University)
Yoon, Suk Hoon (STI Co., Ltd.)
Tark, Dong-Seob (Korea Zoonosis Research Institute, Jeonbuk National University)
Cho, Ho-Seong (College of Veterinary Medicine and Bio-Safety Research Institute, Jeonbuk National University)
Publication Information
Korean Journal of Veterinary Service / v.44, no.4, 2021 , pp. 283-290 More about this Journal
Abstract
This is a study on the improvement of the chemical treatment method of the livestock carcass treatment newly introduced in the livestock infectious disease prevention method in order to improve the problems of the existing burial-centered carcass treatment method when a livestock infectious disease occurs. It was conducted to establish detailed treatment standards for the chemical treatment method of pig carcasses based on the results of proof of the absence of infectious diseases in pigs. After inoculating pig carcasses with 10 pathogens (6 viruses [FMDV, ASFV, CSFV, PCV2, PRRSV, PEDV] and 4 bacteria [Lawsonia intracellularis, Clostridium perfringens type C, E. coli, Salmonella Typhimurium]) It was treated at 90℃ for 5 hours in a potassium hydroxide (KOH) liquid solution corresponding to 15% of the body weight. This method liquefies all cadaveric components and inactivates all inoculated pathogens. Based on these results, it was possible to prove that chemical treatment of pig carcasses is effective in killing pathogens and is a safe method without the risk of disease transmission. Although there are problems to be solved in the processing and operation of the chemical treatment products of livestock carcasses, 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 pollution, and contributing to public health.
Keywords
Alkaline hydrolysis; Biosecurity; Disaster-type animal disease; Infectious animal disease; Pig;
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