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Table 5 Summary of results of PCR (+)/VI (−) non-treated control feed ingredients from batch 4 tested by swine bioassay

From: Modeling the transboundary risk of feed ingredients contaminated with porcine epidemic diarrhea virus

Ingredient Ct of inoculum Clinical signs/rectal swabs PCR testing of small intestine
Soybean-organic 25.52 negative negative
Soybean-conventional 26.34 negative negative
Vitamin A 26.86 negative negative
Vitamin E 30.86 negative negative
Rice hulls 22.94 negative negative
Corn cobs 23.95 negative negative
Tryptophan 21.31 negative negative
D/L methionine 19.75 negative negative
Choline chloride 20.79 positive positive
(−) control >38 negative negative