Table 5 Effect of ginger herb and its essential oil on antioxidant parameters and malondialdehyde in the erythrocytes, serum and liver of broilers raised under heat stress ¹

Erythrocytes

 Glutathione Peroxidase, U/mg Hb

35

36.6

36.9

36

34.5

34.8

0.63

0.87

 Superoxide dismutase, U/mg Hb

1,414

1,398

1,268

1,243

1,270

1,210

27.80

0.16

 Catalase, K/mg Hb

0.7

0.4

0.9

0.6

0.7

0.7

0.08

0.63

Serum

 Total antioxidant capacity, mmol/L

0.8^b

1.0^a

1.0^a

1.0^a

0.9^a

1.0^a

0.02

0.01

 Malondialdehyde, nmol/mL

3.2^a

2.5^bc

2.2^cd

2.1^d

2.7^b

2.6^bc

0.08

0.05

Liver

 Glutathione Peroxidase, U/mg protein

0.5

0.5

0.5

0.5

0.5

0.5

-

0.76

 Superoxide dismutase, U/mg protein

3.6^b

4.0^ab

3.7^b

4.0^ab

4.3^ab

4.8^a

0.12

0.05

 Catalase, K/mg protein

0.3

0.3

0.3

0.2

0.4

0.3

0.03

0.71

 Malondialdehyde, nmol/mL protein

5.3^a

4.4^ab

3.3^bc

2.2^c

2.3^c

2.5^c

0.30

0.01