Effects of different dietary n-6/n-3 polyunsaturated fatty acid ratios on boar reproduction

Table 8 Effects of long-chain n-3 fatty acids on the semen antioxidant capacity of boars^a

Items	C	T1	T2	T3
MDA
Seminal plasma (nmol/ml)	1.67 ± 0.25	1.91 ± 0.34	1.77 ± 0.31	1.84 ± 0.15
Sperm (nmol/mg prot)	3.40 ± 0.32	3.56 ± 0.38	3.38 ± 0.38	3.38 ± 0.22
T-SOD
Seminal plasma (U/ml)	21.3 ± 0.6	21.3 ± 2.2	24.4 ± 2.5	23.1 ± 4.1
Sperm (U/mg prot)	17.8 ± 2.8	26.0 ± 4.1	24.6 ± 2.5	20.7 ± 3.3
GSH-Px
Seminal plasma (U/ml)	131.9 ± 11.0^a	139.0 ± 11.6^ab	144.5 ± 17.3^ab	158.1 ± 12.6^b
Sperm (U/mg prot)	18.5 ± 1.7^ab	16.1 ± 3.6^a	24.2 ± 1.9^b	18.1 ± 3.8^ab
T-AOC
Seminal plasma (U/ml)	0.64 ± 0.17^a	0.87 ± 0.16^b	0.79 ± 0.09^ab	0.84 ± 0.11^ab
Sperm (U/mg prot)	5.51 ± 0.99	5.91 ± 0.84	5.69 ± 0.98	5.47 ± 0.94

^a C, the control group; T1, the 0.2 % fish oil group; T2, the 2 % fish oil group; T3, the 3 % fish oil group. Sample were collected from 2^nd and 4^th week, and data were the average of two weeks and expressed as means ± standard deviation (n = 16), and values within the same row with different superscripts were significantly different (P <0.05). MDA, malondialdehyde; T-SOD, total superoxide dismutase; GSH-Px, glutathione peroxidase; T-AOC, total ant-oxidative capacity

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