Studies on Survival of Pseudorabies Virus,Actinobacillus
Peer reviewed Original research Studies on survival of pseudorabies virus, Actinobacillus pleuropneumoniae, and Salmonella serovar Choleraesuis in composted swine carcasses Josep Garcia-Siera, DVM, MS; Dale W. Rozeboom, MS, PhD; Barbara E. Straw, DVM, PhD; Brad J. Thacker, DVM, PhD; Larry M. Granger, DVM; Paula J. Fedorka-Cray, MS, MAS, PhD; Jeffrey T. Gray, MS, PhD. Summary tored daily, and samples were obtained culture negative for PRV and App. In Ex- Objective: To monitor survival of pseudo- from the carcasses for microbiologic evalu- periment Two, Sc was recovered from rabies virus (PRV), Actinobacillus ation at intervals throughout the samples collected on Composting Days 0, pleuropneumoniae (App), and Salmonella composting period. 1, and 3, but not from samples collected serovar Choleraesuis (Sc) in composted on Days 7 or 10. Results: Temperature of the composting swine carcasses. piles ranged from 27 to 51°C in Experi- Implications: Under the conditions of Methods: In Experiment One, pigs were ment One, and 27 to 62°C in Experiment these experiments, composting can be used infected with PRV, infected 2 days later Two. Composted carcasses degraded rap- to dispose of swine carcasses containing with App, and euthanized 15 to 16 hours idly. After 7 days, only bones, teeth, large PRV, App, and Sc. after App infection. Carcasses were then muscles, and portions of the hide were Keywords: swine, composting, pseudora- composted for 35 days. In Experiment physically recognizable. Muscle and bone bies, Actinobacillus pleuropneumoniae, Sal- Two, pigs were infected with Sc and were discolored, and bones were more eas- monella serovar Choleraesuis euthanized 3 days later, and carcasses were ily crushed or broken.
[Show full text]