Table 4.
Summary of mean PCR Ct and FFU/mL across all 4 batches of non-treated ingredients
| Ingredient | Mean | Mean | Mean | Mean |
|---|---|---|---|---|
| Ct/FFU titer | Ct/FFU titer | Ct/FFU titer | Ct/FFU titer | |
| Batch 1 | Batch 2 | Batch 3 | Batch 4 | |
| Soybeans (organic) | 20.76/5120 | 23.27/neg | 26.42/neg | 25.52/neg |
| Soybean meal (organic) | 19.20/40,960 | 19.10/1920 | 20.10/800 | 22.55/60 |
| Soybeans (conventional) | 22.39/3840 | 24.18/40 | 28.86/neg | 20.99/neg |
| Soybean meal (conventional) |
19.75/7680 | 19.71/1920 | 19.76/5120 | 16.04/60 |
| Lysine hydrochloride | 18.54/1280 | 18.51/40 | 18.79/100 | 17.83/100 |
| D-L methionine | 22.17/2560 | 21.25/neg | 25.03/neg | 19.50/neg |
| Tryptophan | 23.56/160 | 22.54/neg | 25.30/neg | 21.31/neg |
| Vitamin A | 25.22/neg | 22.66/neg | 25.23/neg | 26.85/neg |
| Vitamin D | 22.28/3840 | 21.29/640 | 22.72/320 | 20.94/40 |
| Vitamin E | 28.54/neg | 22.86/neg | 26.15/neg | 30.86/neg |
| Choline chloride | 20.82/40 | 20.90/40 | 20.41/neg | 20.77/neg |
| Rice hulls | 24.73/neg | 24.47/neg | 25.93/neg | 22.99/neg |
| Corn cobs | 23.66/80 | 22.83/neg | 24.68/neg | 24.49/neg |
| Tetracycline | 38/neg | 38/neg | 38/neg | 38/neg |
| (−) control feed | 38/neg | 38/neg | 38/neg | 38/neg |
| Virus stock | 17.15/245,760 | 18.86/30 | 21.19/neg | 23.73/neg |
Ingredient: Two 30 g replicates per ingredient
Mean Ct/FFU titer: Mean Ct value and FFU/mL across the 2 samples per ingredient