Table 1.
Experimental groups and inclusion rates of feed additives used during the feeding trial period (day 0–35).
| Item | Inclusion rate (g/kg) | Product resource |
|---|---|---|
| NC 1 | ‒ | ‒ |
| PC 2 | ‒ | ‒ |
| M 3 | 0.1 | Maxus: 100 g of avilamycin (BIOFERM CZ, spol. sro.) per 1000 g. |
| CL4 | 0.5 | CloStat: Bacillus subtilis (2 × 107 CFU/g) (KEMIN Ind., Valley Center, CA, USA) per 1 g. |
| S 5 | 0.12 | Sangrovit Extra: Photobiotic compound (benzophenanthridine alkaloids, sanguinarine and protopine) (Albitalia s.r.L., Co., Milano, Italy) |
| CL + S 6 | 0.5 CL+ 0.12 S | CloStat + Sangrovit Extra |
| G 7 | 0.2 | Gallipro Tech: A highly-selected strain (DSM17299) of Bacillus subtilis (4 × 109 CFU/g DSM 17299) (Boege Alle Co., Hoersholm, Denmark) |
1 Negative control = control with no additive or challenge; 2 PC = positive control; 3 M = 1 kg of the product contains 100 g avilamycin; 4 Clostat = Bacillus subtilis (2 × 107 CFU/g); 5 Sangrovit Extra = 0.12 g/kg after Clostridium challenge; 6 CL + S = 0.5 g/kg CloStat + 0.12 g/kg Sangrovit Extra; 7 G = Bacillus licheniformis (1.5 × 1011 CFU/g) after Clostridium challenge.