Table 7.
Effect of selenium (Se) sources and inclusion levels in diets on Se concentrations in the tissues of broiler chickens.
| Items | Added Se (mg/kg) | Se concentrations in the tissues (mg/kg) |
||
|---|---|---|---|---|
| Breast | Liver | Feather | ||
| CON1 | 0 | 0.25d | 0.32d | 0.67d |
| Organic Se | 5 | 0.51b,c,d | 0.63c | 1.81c |
| 10 | 0.67a,b | 0.85b | 2.68b | |
| 15 | 0.91a | 1.18a | 4.32a | |
| Inorganic Se | 5 | 0.32c,d | 0.57c | 1.57c |
| 10 | 0.58b,c | 0.81b | 2.32b,c | |
| 15 | 0.65a,b | 0.93b | 3.09b | |
| SEM (n = 6) | 0.010 | 0.054 | 0.296 | |
| Main effect | ||||
| Se source | ||||
| Organic Se | 0.70 | 0.89 | 2.94 | |
| Inorganic Se | 0.52 | 0.77 | 2.32 | |
| SEM (n = 18) | 0.061 | 0.034 | 0.183 | |
| Se level | ||||
| 5 | 0.42b | 0.60c | 1.69c | |
| 10 | 0.63a,b | 0.83b | 2.50b | |
| 15 | 0.78a | 1.06a | 3.70a | |
| SEM (n = 12) | 0.075 | 0.041 | 0.225 | |
| P-values | ||||
| 1-way ANOVA | <0.01 | <0.01 | <0.01 | |
| 2-way ANOVA | ||||
| Se source | <0.05 | 0.02 | 0.02 | |
| Se level | <0.01 | <0.01 | <0.01 | |
| Source × level | 0.73 | 0.17 | 0.25 | |
| Contrast | ||||
| Se level (linear) | <0.01 | <0.01 | <0.01 | |
| Se level (quadratic) | 0.78 | 0.94 | 0.50 | |
a–eMeans with different superscripts within a column differ (P < 0.05).
CON: control diet (basal diet).