Table 2.
Growth performance and intestinal necrotic enteritis (NE) lesion score of broilers challenged with an experimental model to reproduce NE and supplemented with Bacillus subtilis DSM 32315.
| Treatment | NE Lesion Score | BW Gain (g) | FI (g) | FCR (g/g) | BW Gain (g) | FI (g) | FCR (g/g) | Overall Mort, % | |
|---|---|---|---|---|---|---|---|---|---|
| 21 d | 28 d | 1–28 d | 1–42 d | ||||||
| Uninfected | 0.00 c | 0.30 | 1107 a | 1717 | 1.552 c | 2464 a | 4357 | 1.769 c | 8.0 b |
| Infected | 1.20 a | 0.30 | 975 b | 1645 | 1.689 a | 2187 c | 4351 | 1.990 a | 16.9 a |
| Infected+Prob | 0.50 b | 0.30 | 1032 b | 1645 | 1.594 b | 2298 b | 4408 | 1.918 b | 11.1 b |
| SEM | 0.30 | 0.30 | 0.061 | 0.096 | 0.034 | 0.074 | 0.180 | 0.049 | 4.10 |
| p value | <0.001 | 0.98 | 0.004 | 0.26 | <0.001 | <0.001 | 0.836 | <0.001 | 0.005 |
a–c Means with different superscripts in a column differ (p ≤ 0.05) by Dunn’s test (NE lesion score) or Tukey’s test (growth performance measures). Values are means ± SEM of 8 pens. NE = necrotic enteritis, BW gain = body weight gain, FI = feed intake, FCR = feed conversion ratio, mort = mortality, Prob = probiotic, SEM = standard error of mean.