Table 3.
Effects of supplementation with Bacillus amyloliquefaciens CECT 5940 probiotic (DFM), BMD, or its combination on performance parameters of challenged broiler.
| Day 1–21 | Day 1–35 | Day 1–42 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Treatment | BWG (kg)1 | FI (kg)2 | FCR adj. (kg/kg)3 | BWG (kg) | FI (kg) | FCR adj. (kg/kg) | BWG (kg) | FI (kg) | FCR adj. (kg/kg) | Mortality (%) |
| PC4 | 0.996 | 1.295b | 1.300 | 2.408a | 3.566a | 1.481c | 3.052a | 4.838a | 1.586c | 3.648 |
| NC5 | 0.998 | 1.317a | 1.320 | 2.083b | 3.337b | 1.602a | 2.740b | 4.670b | 1.704a | 5.730 |
| NC + BMD6 | 0.993 | 1.301a,b | 1.310 | 2.100b | 3.270b | 1.557b | 2.716b | 4.521b | 1.664b | 4.167 |
| NC + DFM7 | 0.990 | 1.292b | 1.305 | 2.076b | 3.253b | 1.567b | 2.697b | 4.501b | 1.669b | 4.169 |
| NC + BMD + DFM | 1.000 | 1.301a,b | 1.307 | 2.111b | 3.300b | 1.563b | 2.744b | 4.563b | 1.664b | 5.092 |
| SEM | 0.015 | 0.016 | 0.015 | 0.049 | 0.066 | 0.020 | 0.084 | 0.120 | 0.023 | 3.219 |
| P-value | 0.767 | 0.049 | 0.181 | <0.001 | <0.001 | <0.001 | <0.001 | <0.001 | <0.001 | 0.709 |
Means in the same column followed by different superscript differ significantly (P < 0.05, ANOVA, Student–Newman–Keuls test).
1BWG—body weight gain.
2FI—feed intake.
3FCRadj.—feed conversion ratio adjusted for mortality.
4PC—positive control (basal diet without additives or challenge).
5NC—negative control (basal diet without additive and challenged birds receiving 3.85 × 104 sporulated oocysts of Eimeria maxima + 2.5 × 106 CFU of Clostridium perfringens).
6BMD—bacitracin methylene disalicylate added in 0.05 g/kg feed.
7DFM—direct-fed microbial added 1 g/kg feed (1 × 106 CFU/g of B. amyloliquefaciens CECT 5940).