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Table 2 Summary of feed ingredients which contained viable PEDV as detected by virus isolation

From: An evaluation of porcine epidemic diarrhea virus survival in individual feed ingredients in the presence or absence of a liquid antimicrobial

Ingredient Mean Mean Mean Mean
Ct/FFU titer Ct/FFU titer Ct/FFU titer Ct/FFU titer
Day1 PI Day 7 PI Day 14 PI Day 30 PI
SBM 16.24/225,000 16.51/170,000 17.48/10,000 15.72/15,360
DDGS 23.17/17,500 23.29/9600 21.71/80 18.65/40
RBCs 19.70/160,000 21.18/25,000 21.61/3540 19.53/500
Meat & bone meal 17.44/25,325 18.95/25,600 19.76/1920 16.04/1320
Choice white grease 18.46/700 19.66/140 24.60/negative 22.60/negative
Lysine HCL 18.08/40 19.42/40 20.09/40 15.83/40
D/L Methionine 21.60/20,000 21.16/12,800 21.44/350 18.06/240
Threonine 29.31/40 28.27/40 27.98/40 23.55/negative
Limestone 27.49/40 27.06/40 27.37/negative 23.17/negative
(+) Control complete feed 22.87/750 20.81/500 18.40/640 18.75/150
(−) Control complete feed >38/negative >38/negative >38/negative >38/negative
Virus stock 16.34/200,000 17.35/200,000 18.40/12,800 18.95/5120
  1. Ingredient: Two 30 g replicates per ingredient
  2. Mean Ct/FFU titer: Mean Ct value and FFU/mL across the 2 samples per ingredient