Table 2 Effect of dietary Lactobacillus, medicinal plants extract, herb extract on laying performance in laying hens against Salmonella gallinarum (n=20)
| Challenge | Egg production (%) | Egg weight (g) | Egg mass (g/d) | Feed intake (g) | FCR |
Treatments | NC | × | 63.8 | 65.5 | 41.8 | 102.8 | 2.46 |
○ | 61.7 | 65.3 | 40.3 | 97.8 | 2.43 |
PC | × | 65.4 | 64.7 | 42.3 | 105.4 | 2.49 |
○ | 64.2 | 64.5 | 41.4 | 102.5 | 2.48 |
LB | × | 62.7 | 65.1 | 40.8 | 103.5 | 2.54 |
○ | 63.0 | 65.8 | 41.5 | 98.5 | 2.38 |
MPE | × | 66.4 | 64.8 | 43.0 | 107.8 | 2.51 |
○ | 62.1 | 65.1 | 40.4 | 96.8 | 2.39 |
EO | × | 63.8 | 65.6 | 41.9 | 108.7 | 2.60 |
○ | 60.4 | 65.3 | 39.4 | 101.6 | 2.58 |
SEM | | 0.56 | 0.13 | 0.54 | 1.28 | 0.02 |
Challenge | Without Salmonella | | 64.4 | 65.1 | 42.0 | 105.6 | 2.52 |
With Salmonella | | 62.3 | 65.2 | 40.6 | 99.4 | 2.45 |
Feed | NC | | 62.8 | 65.4 | 41.0 | 100.3 | 2.44 |
PC | | 64.8 | 64.6 | 41.9 | 103.9 | 2.48 |
LB | | 62.9 | 65.5 | 41.1 | 101.0 | 2.46 |
MPE | | 64.3 | 65.0 | 41.7 | 102.3 | 2.45 |
EO | | 62.1 | 65.4 | 40.6 | 105.2 | 2.59 |
Challenge | | NS | NS | NS | NS | NS |
Feed | | NS | NS | NS | NS | NS |
Challenge × feed | | NS | NS | NS | NS | NS |
NC, basal diet; PC, basal diet with virginiamycin 10 ppm + salinomycin 60 ppm; LB, Lactobacillus 0.1%; MPE, medicinal plants extract 100 ppm; EO, essential oil 100 ppm.NS; no significant.