Table 3.

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

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

¹Different letters in the same column differ at P < 0.05

² δ is the time of the first log reduction of virus concentration

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