Treatment (diets) Day 0 A1 (day 56) B1 (day 56) C1 (day 56) D1 (day 56)
Biochemical composition  
CP % 52.34 ± 1.54*a** 63.23 ± 0.99b 63.68 ± 0.36b 61.98 ± 0.69b 67.95 ± 0.53c
EE % 38.05 ± 0.15d 20.45 ± 0.85c 17.35 ± 0.75b 19.40 ± 0.30c 11.85 ± 0.25a
Ash % 8.00 ± 0.20a 11.00 ± 0.00b 12.80 ± 0.20c 13.10 ± 0.30c 16.50 ± 0.25d
DM % 99.50 ± 0.30 a 99.30 ± 0.30a 99.75 ± 0.50a 99.60 ± 0.20a 99.65 ± 0.50a
Statistical differences within rows are shown with different superscript letters, (P<0.05)**.
Table 5: Whole body biochemical composition of rainbow trout fingerling in first and fish fed graded dietary levels of inorganic Ca at the end of experiment І (means ± std. error).
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