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Table 7 Effects of dietary threonine levels on MDA, PC, AHR and ASA in intestine and hepatoancreas of sub-adult grass carpf

From: Growth, digestive and absorptive capacity and antioxidant status in intestine and hepatopancreas of sub-adult grass carp Ctenopharyngodonidella fed graded levels of dietary threonine

Item Dietary Thr levels, g/kg diet
  3.3 5.9 8.4 10.9 13.1 15.8
Intestine
 MDA, nmol/mg protein 2.97 ± 0.23d 1.98 ± 0.19c 1.33 ± 0.11 a 1.51 ± 0.07 b 1.53 ± 0.11b 1.57 ± 0.10b
 PC, nmol/mg protein 4.37 ± 0.34c 3.41 ± 0.25ab 3.52 ± 0.23b 3.19 ± 0.29ab 3.10 ± 0.18a 3.34 ± 0.30ab
 AHR, U/mg protein 120.5 ± 9.9a 175.2 ± 12.1b 192.9 ± 14.1c 266.9 ± 11.1e 278.3 ± 12.8e 227.6 ± 17.7d
 ASA, U/g protein 243.5 ± 14.7b 253.2 ± 18.3b 252.2 ± 17.6b 255.9 ± 22.3b 278.1 ± 17.2c 208.5 ± 14.5a
Hepatopancreas
 MDA, nmol/mg protein 2.38 ± 0.19e 2.17 ± 0.15d 1.57 ± 0.13b 1.37 ± 0.13a 1.95 ± 0.18c 1.92 ± 0.10c
 PC, nmol/mg protein 6.08 ± 0.41c 6.21 ± 0.41c 4.99 ± 0.50b 5.11 ± 0.36b 4.24 ± 0.38a 5.90 ± 0.52c
 AHR, U/mg protein 214.6 ± 14.8a 217.2 ± 11.6a 218.9 ± 5.4a 222.4 ± 7.0a 266.1 ± 10.5b 224.2 ± 13.3a
 ASA, U/g protein 220.8 ± 13.8a 224.0 ± 19.2a 237.2 ± 16.1a 264.9 ± 22.8b 241.4 ± 22.0a 230.4 ± 12.2a
  1. MDA: Malondialdehyde content; PC: Protein carbonyl content; AHR: Anti-hydroxyl radical capacity; ASA: Anti-superoxide anion capacity
  2. a,b,c,d,eMeans in the same row without a letter in common are significantly different (P< 0.05)
  3. fValues are mean ± SD (n = 6)