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 |