Table 4. Effects of the extra-high (XH) slaughter weight (SW) and low-lysine (Lys) diet on fatty acid composition of Longissimus lumborum muscle of finishing gilts1)
Item | Average SW | XHSW | SEM | Contrast: p-value |
B-Med2) | G-Med | G-Med | G-Low | T 1: | T 2: | T 3: |
T1 | T2 | T3 | T4 | T 2 | T 3 | T 4 |
14:0 | 1.84 | 1.85 | 1.76 | 2.23 | 0.07 | 0.94 | 0.39 | < 0.01 |
16:0 | 26.1 | 25.9 | 26.4 | 24.7 | 0.5 | 0.75 | 0.32 | 0.01 |
18:0 | 11.8 | 12.1 | 13.0 | 11.3 | 0.5 | 0.64 | 0.25 | 0.04 |
16:1 | 4.35 | 4.15 | 3.79 | 4.06 | 0.20 | 0.49 | 0.22 | 0.35 |
18:1 | 45.8 | 45.5 | 44.8 | 47.0 | 0.7 | 0.71 | 0.55 | 0.05 |
18:2n6 | 8.01 | 8.34 | 7.83 | 8.85 | 0.36 | 0.52 | 0.31 | 0.05 |
18:3n3 | 0.32 | 0.34 | 0.30 | 0.40 | 0.01 | 0.29 | 0.07 | < 0.01 |
20:4n6 | 1.22 | 1.34 | 1.43 | 0.80 | 0.12 | 0.48 | 0.57 | < 0.01 |
Others | 0.53 | 0.53 | 0.51 | 0.67 | 0.03 | 0.95 | 0.77 | < 0.01 |
Total | 100.0 | 100.0 | 100.0 | 100.0 | | | | |
SFA | 40.2 | 40.3 | 41.7 | 38.8 | 0.9 | 0.93 | 0.28 | 0.03 |
MUFA | 50.2 | 49.6 | 48.7 | 51.1 | 0.9 | 0.63 | 0.41 | 0.05 |
PUFA | 9.60 | 10.07 | 9.63 | 10.09 | 0.47 | 0.48 | 0.51 | 0.50 |
Data are means of eight animals.
Barrows fed the medium-lysine (0.80%) diet, gilts fed the medium-lysine diet, and gilts fed the low-lysine (0.60%) diet, respectively.
T, treatment; B-Med, barrow-medium; G-Med, gilt-medium; SFA, saturated fatty acids; MUFA, monounsaturated fatty acids; PUFA, polyunsaturated fatty acids.