Table 3.
Fatty acid composition of milk in the spring-summer period.
| Fatty acid name | X̄ | mX̄ | Cv | X̄ | mX̄ | Cv | Comparison of breeds | ||
|---|---|---|---|---|---|---|---|---|---|
| Holstein | Simmental | d | td | p | |||||
| Spring | |||||||||
| C4:0 | 3.29 | 0.08 | 15.12 | 3.49 | 0.07 | 12.76 | 0.20 | 1.88 | >0.05 |
| C6:0 | 1.78 | 0.05 | 16.56 | 1.56 | 0.01 | 5.11 | 0.22 | 4.18 | <0.001 |
| C8:0 | 1.16 | 0.02 | 9.48 | 1.09 | 0.01 | 5.74 | 0.07 | 3.20 | <0.01 |
| C10:0 | 3.05 | 0.10 | 20.34 | 2.21 | 0.04 | 11.68 | 0.84 | 7.77 | <0.001 |
| C10:1 | 0.29 | 0.01 | 20.52 | 0.23 | 0.01 | 13.71 | 0.06 | 5.03 | <0.001 |
| C12:0 | 3.11 | 0.09 | 18.48 | 2.71 | 0.08 | 18.32 | 0.40 | 3.33 | <0.01 |
| C14:0 | 9.99 | 0.20 | 12.69 | 10.48 | 0.17 | 10.13 | 0.49 | 1.89 | >0.05 |
| C14:1* | 1.23 | 0.04 | 22.57 | 1.03 | 0.03 | 18.48 | 0.20 | 3.91 | <0.001 |
| C16:0 | 29.29 | 0.31 | 6.65 | 30.14 | 0.13 | 2.67 | 0.85 | 2.54 | >0.05 |
| C16:1* | 2.28 | 0.03 | 8.34 | 1.70 | 0.03 | 9.90 | 0.58 | 14.50 | <0.001 |
| C18:0 | 9.84 | 0.21 | 13.48 | 8.26 | 0.04 | 2.98 | 1.58 | 7.42 | <0.001 |
| C18:1* | 25.14 | 0.31 | 7.88 | 29.25 | 0.22 | 4.76 | 4.11 | 10.82 | <0.001 |
| C18:2* | 3.84 | 0.14 | 22.41 | 3.04 | 0.07 | 14.98 | 0.80 | 5.08 | <0.001 |
| C18:3* | 1.29 | 0.05 | 22.39 | 0.42 | 0.01 | 18.95 | 0.87 | 16.84 | <0.001 |
| C20:0 | 0.20 | 0.01 | 30.00 | 0.13 | 0.00 | 16.09 | 0.07 | 6.38 | <0.001 |
| C22:0 | 0.09 | 0.02 | 128.36 | 0.06 | 0.00 | 24.11 | 0.03 | 1.41 | >0.05 |
| Other | 4.13 | 0.03 | 4.33 | 4.18 | 0.03 | 4.36 | 0.05 | 1.14 | >0.05 |
| Summer | |||||||||
| C4:0 | 3.66 | 0.06 | 10.10 | 3.77 | 0.06 | 9.79 | 0.11 | 1.30 | >0.05 |
| C6:0 | 1.88 | 0.06 | 18.71 | 1.83 | 0.05 | 16.45 | 0.05 | 0.64 | >0.05 |
| C8:0 | 1.48 | 0.05 | 20.65 | 1.21 | 0.03 | 17.39 | 0.27 | 4.63 | < 0.001 |
| C10:0 | 2.95 | 0.07 | 14.94 | 2.71 | 0.09 | 21.56 | 0.24 | 2.10 | >0.05 |
| C10:1 | 0.34 | 0.01 | 20.30 | 0.27 | 0.01 | 17.46 | 0.07 | 4.95 | <0.001 |
| C12:0 | 3.11 | 0.08 | 16.03 | 2.39 | 0.06 | 16.60 | 0.72 | 7.20 | <0.001 |
| C14:0 | 11.29 | 0.20 | 11.06 | 8.97 | 0.10 | 6.85 | 2.32 | 10.38 | <0.001 |
| C14:1* | 1.18 | 0.03 | 16.14 | 1.24 | 0.04 | 21.19 | 0.06 | 1.20 | >0.05 |
| C16:0 | 28.06 | 0.27 | 6.14 | 27.70 | 0.24 | 5.57 | 0.36 | 1.00 | >0.05 |
| C16:1* | 1.99 | 0.05 | 15.50 | 1.96 | 0.05 | 14.98 | 0.03 | 0.42 | >0.05 |
| C18:0 | 11.32 | 0.21 | 11.59 | 11.19 | 0.17 | 9.52 | 0.13 | 0.48 | >0.05 |
| C18:1* | 23.61 | 0.29 | 7.87 | 28.48 | 0.24 | 5.39 | 4.87 | 12.94 | < 0.001 |
| C18:2* | 3.84 | 0.12 | 19.97 | 2.49 | 0.04 | 10.14 | 1.35 | 10.67 | < 0.001 |
| C18:3* | 0.90 | 0.04 | 29.22 | 1.06 | 0.05 | 29.28 | 0.16 | 2.50 | >0.05 |
| C20:0 | 0.15 | 0.01 | 21.70 | 0.14 | 0.01 | 29.48 | 0.01 | 0.71 | >0.05 |
| C22:0 | 0.10 | 0.00 | 9.43 | 0.07 | 0.003 | 26.75 | 0.03 | 10.00 | <0.001 |
| Other | 4.16 | 0.02 | 3.13 | 4.52 | 0.07 | 9.54 | 0.36 | 4.94 | <0.001 |
*
The calculation is based on the sum of the isomers. by v=40+40–2=78 tst=1.98 (p=0.05)–2.63 (p=0.01)–3.39 (p=0.001)