Treatment (diets) Day 0 A2 (day 56) B2 (day 56) C2 (day 56) D2 (day 56)
Biochemical
composition
 
CP % 52.34 ± 1.54*a** 67.93 ± 0.39b 72.62 ± 2.16c 63.71 ± 0.01bb 65.08 ± 0.04
EE % 38.05 ± 0.15e 13.25 ± 0.25b 8.40 ± 0.10a 17.25 ± 0.65d 14.95 ± 0.15c
Ash % 8.00 ± 0.20a 14.60 ± 0.60b 15.90 ± 0.10b 15.50 ± 0.90b 14.90 ± 0.30b
DM % 99.50 ± 0.30a 99.70 ± 0.25a 99.65 ± 0.30a 99.60 ± 0.40a 99.50 ± 0.50a
Statistical differences within rows are shown with different superscript letters, (P<0.05) .**
Table 6: Whole body biochemical composition of rainbow trout fingerling in first and fish fed graded dietary levels of inorganic k at the end of experiment ІІ (means ± std. error) *.