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Table 3 Survival of Porcine Epidemic Diarrhea virus (PEDV) in feed and feed ingredients when thermally treated

From: Survival of porcine epidemic diarrhea virus (PEDV) in thermally treated feed ingredients and on surfaces

Temperature Average δ 1,2 (min) Shape Paremeter3 Adj. R2 Log reduction at 10 min1 Log reduction at 15 min1 Log reduction at 30 min1
60 °C 4.4a ± 3.5 0.50 0.83 1.7a ± 0.4 2.0a ± 0.4 2.4a ± 0.4
70 °C 3.7b ± 3.7 0.45 0.84 1.9a ± 0.5 2.3a ± 0.4 2.7a ± 0.7
80 °C 2.4b ± 1.8 0.50 0.85 2.2b ± 0.3 2.8b ± 0.8 3.4b ± 0.9
90 °C 2.3b ± 1.9 0.60 0.84 2.6c ± 0.9 3.3c ± 1.1 3.9c ± 0.8
P-Value 0.0002 0.0001 0.0001 0.0001
  1. 1Different letters in the same column differ at P < 0.05
  2. 2 δ is the time of the first log reduction of virus concentration
  3. 3The shape parameter (n) indicates the shape of the curve with a value n > 1 forming shoulders and being convex, n < 1 forming tails and being concave, and n = 1 being linear