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Table 4 Blood redox parameters in turkeys fed diets with different Met sources and content (n = 8)

From: The effect of different dietary levels of DL-methionine and DL-hydroxy analogue on the antioxidant status of young turkeys infected with the haemorrhagic enteritis virus

 

Blood redox parameters5

Vit Cμmol/l

SOD U/g Hb

GPx U/g Hb

CAT U/g Hb

GSH + GSSG μmol/l

FRAP μmol/l

MDA μmol/l

LOOH μmol/l

Treatment1

DLML

5.66

306

147b

794

0.83ab

1108a

0.82

35.1

MHAL

4.95

385

143b

996

0.72c

588c

1.00

30.3

DLMH

5.32

265

173a

726

0.80b

854b

0.81

33.5

MHAH

4.90

377

107c

1119

0.89a

959ab

0.80

23.9

Dosage2 (D)

Low

5.31

345

145

895

0.77

848

0.91

32.7

High

5.11

321

140

922

0.84

906

0.81

28.7

Source3 (S)

DLM

5.49

286

160

760

0.81

981

0.82

34.3

MHA

4.92

380

125

1057

0.80

773

0.90

27.1

p-value

Dosage

0.423

0.130

0.299

0.558

0.012

0.302

0.062

0.035

Source

0.027

< 0.001

< 0.001

< 0.001

0.634

0.001

0.139

< 0.001

D × S

0.559

0.303

< 0.001

0.066

0.001

< 0.001

0.088

0.190

SEM4

0.128

11.63

4.885

35.59

0.017

43.09

0.029

1.154

  1. 1Diets fed to turkeys containing DL-methionine (DLML and DLMH) and the equivalent amount of DL-methionine hydroxyl analogue (MHAL and MHAH) at two levels: low (L) and high - (H)
  2. 2Low level - 0.55 and 0.45% and high level - 0.78, 0.65%, in weeks 1–4 and 5–8 of feeding
  3. 3Sources of methionine: DL-isomer (DLM) and DL- methionine hydroxy analogue (MHA)
  4. 4SEM, standard error of the mean
  5. 5Vit C: vitamin C, SOD: superoxide dismutase, GPx: glutathione peroxidase, CAT: catalase, GSH + GSSG: total glutathione, FRAP: ferric reducing ability of plasma, MDA: malondialdehyde, LOOH: lipid peroxides
  6. a-bvalues differ significantly
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BMC Veterinary Research

ISSN: 1746-6148

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