Table 9.

Effect of leucine supplementation on FAA in boar seminal plasma (μmol/L) and AA of boar sperm (%).

Items	CON	LEU	P-value
Seminal plasma (μmol/L)
Threonine	80.40 ± 14.12	111.30 ± 35.41	0.04
Alanine	123.50 ± 37.44	133.00 ± 30.61	0.59
Valine	60.89 ± 14.33	51.25 ± 18.17	0.27
Methionine	3.90 ± 0.32	4.38 ± 1.12	0.36
Cysteine	11.17 ± 4.75	12.76 ± 3.26	0.47
Isoleucine	17.01 ± 6.34	20.71 ± 7.53	0.34
Leucine	29.24 ± 8.70	41.42 ± 11.11	0.04
Lysine	4.42 ± 1.54	5.89 ± 1.59	0.21
Arginine	6.59 ± 1.62	4.99 ± 1.88	0.12
Phenylalanine	27.58 ± 9.75	33.50 ± 17.89	0.43
Sperm (%)
Aspartic acid	4.23 ± 0.05	4.27 ± 0.03	0.40
Threonine	2.63 ± 0.10	2.65 ± 0.03	0.77
Serine	3.29 ± 0.10	3.24 ± 0.04	0.45
Glutamate	6.04 ± 0.23	6.28 ± 0.09	0.16
Glycine	1.98 ± 0.12	2.07 ± 0.02	0.30
Alanine	1.81 ± 0.19	1.93 ± 0.09	0.38
Cysteine	1.83 ± 0.12	1.97 ± 0.05	0.15
Valine	2.22 ± 0.13	2.36 ± 0.04	0.15
Methionine	0.75 ± 0.06	0.81 ± 0.02	0.17
Isoleucine	1.99 ± 0.10	2.09 ± 0.10	0.32
Leucine	3.43 ± 0.18	3.76 ± 0.10	0.05
Tyrosine	2.65 ± 0.13	2.73 ± 0.19	0.57
Phenylalanine	1.98 ± 0.12	2.04 ± 0.09	0.50
Lysine	3.19 ± 0.11	3.32 ± 0.08	0.17
Histidine	1.20 ± 0.04	1.20 ± 0.03	0.87
Arginine	7.60 ± 0.13	7.63 ± 0.55	0.95
Proline	3.14 ± 0.11	3.30 ± 0.09	0.11
Total acid hydrolyzed AA	49.97 ± 1.69	51.62 ± 0.53	0.18

CON, control group; LEU, leucine group. Values are presented as means ± SD (n = 15).