Category n Calcium (mg/dl) E2 (ng/ml)
Cortical alveoli stage (ΙΙ) 7 0.29 ± 0.12c 0.78 ± 0.10c
Vitellogenic stage (ΙII) 6 6.67 ± 1.15a 5.33 ± 1.06a
Ripe (mature) stage (IV) 14 2.86 ± 0.78b 1.98 ± 0.48b
Ovulation stage (V) 8 0.07 ± 0.05c 2.31 ± 0.35b
Values with different superscript letters denote significantly different means within each column (P<0.05)
Table 2: Calcium and 17β-estradiol (E2) concentrations in serum (mean ± SD) of Persian sturgeon.