Laboratory evaluation demonstrates that 70% undenatured ethanol preserves DNA and RNA in pig oral fluid and fecal samples for 7 days, indicating practical ambient transport for diagnostics.
Nucleic acid integrity in pig oral fluid and fecal samples is important for polymerase chain reaction-based pathogen detection and appropriate preservation during shipping is required. A final concentration of 70% undenatured ethanol was sufficient to maintain DNA and RNA quality for up to 7 days.
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Gerszon et al. (2024) studied this question.
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