Impact of Diets Containing Plant Raw Materials as Fish Meal and Fish Oil Replacement on Rainbow Trout (Oncorhynchus mykiss), Gilthead Sea Bream (Sparus aurata), and Common Carp (Cyprinus carpio) Freshness

Table 8

IMP, Ino, and Hx concentrations in μmol g⁻¹ muscle for common carp fed with the three experimental diets (C, P, and F) and stored on ice for 0–12 days postmortem. IMP: inosine monophosphate; Ino: inosine; Hx: hypoxanthine.

Days in ice	C	P	F
IMP
0	3.69 ± 1.23	2.84 ± 0.17	4.04 ± 0.30
2	2.07 ± 0.76	1.88 ± 0.77	2.33 ± 1.13
4	1.64 ± 1.16	1.02 ± 0.54	1.52 ± 1.69
6	0.82 ± 0.63	0.52 ± 0.74	0.33 ± 0.35
8	0.18 ± 0.11	0.14 ± 0.12	0.27 ± 0.28
10	0.33 ± 0.32	0.03 ± 0.02	0.04 ± 0.01
12	0.28 ± 0.19	0.03 ± 0.01	0.07 ± 0.02
Linear regression	−0.271 + 2.916; = 0.83	−0.316+ 3.126; = 0.82	−0.232 + 2.317; = 0.87
Ino
0	0.37 ± 0.10	0.34 ± 0.07	0.40 ± 0.04
2	0.98 ± 0.24	0.73 ± 0.10	1.00 ± 0.21
4	1.25 ± 0.39	1.07 ± 0.15	1.27 ± 0.46
6	0.93 ± 0.14	0.82 ± 0.28	0.93 ± 0.35
8	0.96 ± 0.17	0.63 ± 0.06	1.21 ± 0.43
10	0.83 ± 0.24	0.37 ± 0.18	0.88 ± 0.55
12	1.48 ± 0.63	0.53 ± 0.34	1.20 ± 0.52
Linear regression	0.049 + 0.675; = 0.38	0.037 + 0.762; = 0.29	−0.010 + 0.702; = 0.31
Hx
0	0.00 ± 0.00	0.00 ± 0.00	0.00 ± 0.00
2	0.03 ± 0.02	0.04 ± 0.01	0.06 ± 0.04
4	0.06 ± 0.03	0.06 ± 0.03	0.08 ± 0.05
6	0.08 ± 0.04	0.07 ± 0.03	0.08 ± 0.00
8	0.11 ± 0.07	0.07 ± 0.02	0.09 ± 0.04
10	0.08 ± 0.03	0.05 ± 0.01	0.16 ± 0.12
12	0.18 ± 0.10	0.08 ± 0.04	0.16 ± 0.04
Linear regression	0.012 + 0.003; = 0.83	0.082 + 0.407; = 0.84	0.004 + 0.027; = 0.53