Table 3.
Effect of dietary Spirulina platensis phycocyanin addition on serum biochemical parameters.
| SPC0 | SPC0.25 | SPC0.5 | SPC0.75 | SPC1 | Regression # | ||
|---|---|---|---|---|---|---|---|
| Linear | Quadratic | ||||||
| Glucose (mg/dL) | 335.00 ± 2.65 | 337.33 ± 7.57 | 339.33 ± 6.43 | 338.67 ± 6.43 | 340.33 ± 6.11 | 0.30 | 0.77 |
| Total proteins (g/dL) | 3.21 ± 0.25 b | 4.32 ± 0.89 a | 4.69 ± 0.36 a | 4.88 ± 0.53 a | 5.05 ± 0.27 a | <0.01 | 0.10 |
| Albumin (g/dL) | 1.21 ± 0.03 c | 1.42 ± 0.13 bc | 1.54 ± 0.17 b | 1.87 ± 0.31 a | 2.02 ± 0.04 a | <0.01 | 0.79 |
| Total globulins (g/dL) | 2.00 ± 0.24 b | 2.90 ± 0.80 a | 3.15 ± 0.28 a | 3.02 ± 0.25 a | 3.03 ± 0.24 a | 0.02 | 0.05 |
| GH (ng/mL) | 2.90 ± 0.30 c | 4.20 ± 0.30 b | 4.90 ± 0.44 ab | 5.30 ± 0.46 a | 5.60 ± 0.72 a | <0.01 | 0.05 |
| Leptin (ng/mL) | 2.18 ± 0.06 | 2.19 ± 0.02 | 1.65 ± 0.51 | 2.02 ± 0.32 | 2.06 ± 0.52 | 0.54 | 0.24 |
| T3 (ng/mL) | 3.44 ± 0.21 c | 4.42 ± 0.10 b | 4.29 ± 0.11 b | 4.41 ± 0.10 b | 4.85 ± 0.22 a | <0.01 | 0.03 |
| T4 (ng/mL) | 18.55 ± 1.47 c | 23.06 ± 0.57 b | 24.62 ± 0.88 ab | 25.12 ± 1.02 a | 24.41 ± 0.25 ab | <0.01 | <0.01 |
# The regressions were considered significant at p ≤ 0.05. a,b,c Mean values in the same row with different superscripts differ significantly (p < 0.05). SPC0: control diet (basal diet with no additives); SPC0.25: basal diets supplemented with 0.25 g SPC kg–1 diet; SPC0.5: basal diets supplemented with 0.5 g SPC kg–1 diet; SPC0.75: basal diets supplemented with 0.75 g SPC kg–1 diet; SPC1: basal diets supplemented with 1 g SPC kg–1 diet. GH: growth hormone, T3: triiodothyronine, and T4: thyroxine hormone.