Table 4.
Growth performance of broiler chicken fed postbiotics and paraprobiotics (1–5 weeks).
| Parameter | Dietary Treatments | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| T1 | T2 | T3 | T4 | T5 | T6 | T7 | T8 | SEM | p-Value | |
| 0–3 weeks (starter) | ||||||||||
| Initial BW | 43.62 | 43.52 | 43.14 | 42.76 | 43.52 | 44.52 | 42.90 | 43.95 | 0.54 | 0.389 |
| FBW (g) | 895.00 | 856.20 | 847.30 | 844.20 | 900.00 | 1087.20 | 902.60 | 886.00 | 41.63 | 0.423 |
| CBWG (g) | 851.33 | 812.67 | 804.15 | 801.48 | 856.43 | 830.81 | 859.71 | 842.05 | 16.58 | 0.055 |
| CFI (g) | 1080.95 a | 1073.81 a | 999.65 c | 1028.91 bc | 1088.10 a | 1080.95 a | 1055.05 ab | 1066.32 a | 10.23 | <0.0001 |
| FCR (g:g) | 1.29 | 1.35 | 1.27 | 1.30 | 1.29 | 1.32 | 1.26 | 1.30 | 0.03 | 0.554 |
| 4–5 Weeks (Finisher) | ||||||||||
| FBW (g) | 2482.39 | 2419.22 | 2367.66 | 2345.17 | 2420.97 | 2437.56 | 2409.2 | 2471.47 | 39.61 | 0.213 |
| CBWG (g) | 1563.83 | 1541.22 | 1493.03 | 1487.39 | 1503.43 | 1544.33 | 1490.00 | 1558.00 | 29.73 | 0.332 |
| CFI (g) | 2400.00 a | 2269.45 b | 2234.29 b | 2244.45 b | 2371.91 a | 2272.22 b | 2408.57 a | 2400.00 a | 15.71 | <0.0001 |
| FCR (g:g) | 1.55 abc | 1.49 c | 1.52 c | 1.55 abc | 1.62 ab | 1.49 c | 1.63 a | 1.55 abc | 0.33 | 0.0223 |
| Overall | ||||||||||
| FBW (g) | 2482.39 | 2419.22 | 2367.66 | 2345.17 | 2420.97 | 2437.56 | 2409.2 | 2471.47 | 39.61 | 0.213 |
| CBWG (g) | 2438.44 | 2375.44 | 2324.40 | 2302.33 | 2377.66 | 2392.72 | 2366.17 | 2427.18 | 39.51 | 0.223 |
| CFI (g) | 3480.95 a | 3343.25 b | 3234.29 c | 3273.41 c | 3460.88 a | 3353.17 b | 3464.08 a | 3465.59 a | 21.55 | <0.0001 |
| FCR (g:g) | 1.44 | 1.42 | 1.41 | 1.46 | 1.47 | 1.41 | 1.47 | 1.44 | 0.03 | 0.431 |
| Mortality (n) | 0/42 | 0/42 | 1/42 | 0/42 | 1/42 | 0/42 | 1/42 | 2/42 | 0.517 | |
| EBI | 483.80 b | 478.00 c | 459.80 d | 450.60 g | 451.10 f | 484.80 a | 448.90 h | 458.70 e | <0.0001 | |
Means with different superscripts differs significantly (p < 0.05). T1 = negative control (Basal diet), T2 = positive control (Basal diet + 0.01% (w/w) Oxytetracycline), T3 = Basal diet + 0.2% (v/w) postbiotic TL1, T4 = Basal diet + 0.2% (v/w) postbiotic RS5, T5 = Basal diet + 0.2% (v/w) paraprobiotic RG11, T6 = Basal diet + 0.2% (v/w) postbiotic RI11, T7 = Basal diet + 0.2% (v/w) paraprobiotic RG14, T8 = Basal diet + 0.2% (v/w) paraprobiotic RI11, BW = Body weight, FBW = Final Body weight, CBWG = Cumulative Body weight gain, CFI = cumulative feed intake, FCR = Feed conversion ratio, SEM = Standard error of means, EBI = European Broiler Index.