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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