Table 4.
Probiotics and their ameliorative effects on broiler production.
| Probiotics | Level of supplementation | Finding | Sources |
|---|---|---|---|
| Mixture of Bacillus licheniformis and Bacillus subtilis spores | 0.05% | Significantly improve the FCR | (137) |
| Multi-strain probiotic (11 Lactobacillus strains) | 1 g/kg | Increase FCR Improve BWG Increase the caecal populations of lactobacilli and bifidobacteria Increase the caecal VFA Decrease the caecal Escherichia coli |
(134) |
| Protexin | 2 g/kg | Improve the growth performance | (133) |
| Promax | 1 g/L | Improve BW and the hemato-biochemical profile | (138) |
| Normosil | 1 mL/kg | Increase the average daily gain Increase the level of blood erythrocytes Improve carcass quality |
(139) |
| Lact. lactis and L. plantarum | 109 cfu/mL and 1012 cfu/mL, respectively | Lower the serum cholesterol, triglyceride, and total lipid contents Increase contents of blood glucose and total protein | (140) |
BWG, body weight gain; FCR, feed conversion rate; VFA, volatile fatty acid.