Table 11.
Effect of dietary inclusion of an organic acids-based formulation (OABF) and avilamycin dietary inclusion on the volatile fatty acid (VFA) concentration and molar ratios in the cecal digesta of 42-day-old broilers.
| Item | Total VFA1, mmol/kg of wet cecal digesta |
Acetic, % | Propionic, % | Butyric, % | Other VFA2, % | Branched VFA3, % | |
|---|---|---|---|---|---|---|---|
| Main effect | |||||||
| OABF4 | No | 112.44 | 62.23 | 9.28 | 23.50 | 2.04 | 2.94 |
| Yes | 102.36 | 62.25 | 9.08 | 23.13 | 2.32 | 3.21 | |
| Avilamycin5 | No | 112.41 | 62.04 | 9.73 | 23.08 | 2.04 | 3.09 |
| Yes | 102.39 | 62.44 | 8.64 | 23.54 | 2.33 | 3.06 | |
| Treatments6 | |||||||
| CON | 110.80 | 63.03 | 9.09 | 22.66 | 2.03 | 3.19 | |
| OA | 114.01 | 61.06 | 10.36 | 23.50 | 2.05 | 3.00 | |
| OAAV | 90.70 | 63.44 | 7.80 | 22.75 | 2.59 | 3.43 | |
| AV | 114.09 | 61.44 | 9.48 | 24.34 | 2.06 | 2.70 | |
| Statistics | |||||||
| SEM7 | 9.467 | 1.247 | 0.783 | 1.870 | 0.136 | 0.406 | |
| PO | 0.296 | 0.988 | 0.800 | 0.843 | 0.052 | 0.513 | |
| PA | 0.299 | 0.755 | 0.176 | 0.806 | 0.043 | 0.939 | |
| PO×A | 0.171 | 0.123 | 0.070 | 0.522 | 0.076 | 0.270 | |
1
Total VFA = acetic + propionic + butyric + branched VFA + other VFA.
2
Οther VFA = valeric + caproic + heptanoic.
3
Βranched VFA = isobutyric + isovaleric + isocaproic.
4
No: no OABF addition; Yes: addition of 1 g OABF/kg diet.
5
No: no avilamycin addition; Yes: addition of 2.5 mg of avilamycin/kg diet.
6
Interaction means from 8 replicate pens per treatment. Treatments include: control – no additions (CON), 1 g OABF/kg diet (OA), avilamycin 2.5 mg active components/kg diet (AV) and combination of OA + AV (OAAV).
7
Pooled standard error of means.