Table 2.
Effect of dietary supplementation with S. cerevisiae (1.5%) on morphological parameters of tibia from male and female quail at 42 days of age.
| Parameter | Y0 1 | Y1 1 | SEM | Influence | ||||
|---|---|---|---|---|---|---|---|---|
| Male | Female | Male | Female | Yeast | Sex | Y x S 2 | ||
| Morphological properties | ||||||||
| Tibia mass, g | 1.17 | 1.31 | 1.25 | 1.30 | 0.03 | 0.281 | 0.012 | 0.176 |
| Tibia length, mm | 46.9 | 46.6 | 46.3 | 45.3 | 0.6 | 0.095 | 0.279 | 0.539 |
| The Seedor index, mg/mm | 24.9 | 28.0 | 27.1 | 28.8 | 0.7 | 0.061 | 0.004 | 0.348 |
| Volumetric density, cm3 | 1.65 | 1.82 | 1.62 | 1.84 | 0.02 | 0.999 | <0.001 | 0.209 |
| Ash, % | 42.3 | 48.9 | 41.8 | 48.3 | 0.4 | 0.249 | <0.001 | 0.859 |
| Bone diaphysis geometry | ||||||||
| Cross-sectional area, mm2 | 3.14 | 3.09 | 3.03 | 3.21 | 0.11 | 0.940 | 0.553 | 0.265 |
| MRWT, -- | 1.05 | 1.00 | 1.09 | 1.32 | 0.09 | 0.051 | 0.230 | 0.135 |
| CSMI, mm4 | 1.96 | 1.99 | 1.60 | 2.14 | 0.12 | 0.513 | 0.012 | 0.062 |
| Index of gyration, mm | 0.766 | 0.790 | 0.729 | 0.786 | 0.020 | 0.303 | 0.048 | 0.412 |
Values represent means of 8 replicate pens with 1 bird from each pen. SEM - standard error of the means. MRWT – mean relative wall thickness; CSMI – cross-sectional moment of inertia. 1 Y0 – control group fed without yeast addition. 1 Y1 – group fed 1.5% of yeast (S. cerevisiae). 2 Y x S – (yeast) x (sex) interaction.