Table 6.
Fatty acid composition of tissues from wethers born to ewes consuming endophyte-infected (E+) or endophyte-free (E−) fescue during MID (d 35-85) and LATE (d 86- parturition) gestation.
| Maternal Fescue Treatment 1 | |||||
|---|---|---|---|---|---|
| E−/E− | E+/E− | E−/E+ | E+/E+ | SE | |
| Fatty Acids (Carbon number:double bond number, bond orientation-position), % | |||||
| C14:0 | 1.63 b | 1.56 b | 1.81 a | 2.12 a | 1.09 |
| C15:0 | 0.20 b | 0.19 b | 0.22 a | 0.25 a | 0.11 |
| C16:0 | 20.07 d | 20.11 d | 20.49 c | 20.37 c | 1.28 |
| C16:1 cis-9 | 1.60 | 1.56 | 1.64 | 1.62 | 0.32 |
| C17:0 | 0.30 b | 0.31 b | 0.46 a | 0.33 b | 0.17 |
| C18:0 | 18.72 b | 19.09 b | 19.02 b | 18.08 a | 1.22 |
| C18:1 trans-9 | 0.23 | 0.19 | 0.21 | 0.16 | 0.32 |
| C18:1 trans-10 | 7.27 a | 4.92 b | 5.27 b | 6.91 a | 1.99 |
| C18:1 trans-11 | 0.06 d | 0.14 d | 0.27 c | 0.31 c | 0.67 |
| C18:1 cis-9 | 33.56 | 35.44 | 34.39 | 32.99 | 3.05 |
| C18:1 cis-11 | 1.86 c | 1.76 cd | 1.70 d | 1.80 cd | 0.35 |
| C18:2 cis-9,12 | 5.90 a | 5.68 ab | 5.40 b | 5.79 a | 1.00 |
| C18:3 cis-9,12,15 | 0.24 | 0.24 | 0.23 | 0.25 | 0.044 |
| C20:2 cis-11,14 | 0.090 | 0.082 | 0.085 | 0.084 | 0.029 |
| C20:3, cis-5,8,11,14 | 0.10 | 0.12 | 0.086 | 0.12 | 0.23 |
| C22:5, cis-7,10,13,16,19 | 0.54 | 0.57 | 0.56 | 0.54 | 0.13 |
| C22:6, cis-4,7,10,13,16,19 | 0.21 | 0.24 | 0.25 | 0.23 | 0.14 |
| SFA | 21.78 b | 21.74 b | 22.38 a | 22.57 a | 1.47 |
| OCFA | 0.50 | 0.50 | 0.68 | 0.58 | 0.24 |
| MUFA | 35.32 bc | 37.15 a | 36.21 ab | 34.79 c | 3.09 |
| PUFA n-6 2 | 9.28 | 9.27 | 8.91 | 9.19 | 1.36 |
| PUFA n-3 3 | 1.13 | 1.18 | 1.16 | 1.16 | 0.25 |
| Ratio | 10.84 a | 9.96b | 9.92 b | 10.27 ab | 1.96 |
1 Fescue seed treatment: wethers born to ewes fed endophyte-free (E−) or endophyte-infected (E+) tall fescue seed during MID gestation (d35 to 85) and/or LATE gestation (d 86 to parturition). 2 Omega-6 Polyunsaturated fatty acids (PUFA, n-6). 3 Omega-3 Polynsaturated fatty acids (PUFA, n-3). a,b Means in the same row with uncommon superscripts differ (p < 0.05). c,d Means in the same row with uncommon superscripts differ (p < 0.10).