Table 4.
Fatty acid composition of milk in the autumn-winter period.
Fatty acid name | X̄ | mX̄ | Cv | X̄ | mX̄ | Cv | Comparison of breeds | ||
---|---|---|---|---|---|---|---|---|---|
Holstein | Simmental | d | td | p | |||||
Autumn | |||||||||
C4:0 | 3.27 | 0.07 | 14.28 | 3.32 | 0.09 | 16.52 | 0.05 | 0.44 | >0.05 |
C6:0 | 1.58 | 0.01 | 4.27 | 2.47 | 0.06 | 15.74 | 0.89 | 14.63 | <0.001 |
C8:0 | 1.23 | 0.02 | 12.18 | 1.43 | 0.04 | 19.08 | 0.20 | 4.47 | <0.001 |
C10:0 | 2.08 | 0.01 | 2.62 | 3.03 | 0.09 | 18.50 | 0.95 | 10.49 | <0.001 |
C10:1 | 0.26 | 0.01 | 16.06 | 0.31 | 0.01 | 19.61 | 0.05 | 3.54 | <0.001 |
C12:0 | 2.71 | 0.06 | 15.12 | 3.75 | 0.07 | 12.05 | 1.04 | 11.28 | <0.001 |
C14:0 | 10.03 | 0.16 | 9.82 | 11.45 | 0.19 | 10.49 | 1.42 | 5.72 | <0.001 |
C14:1* | 1.29 | 0.03 | 13.30 | 1.37 | 0.02 | 9.42 | 0.08 | 2.22 | >0.05 |
C16:0 | 28.27 | 0.21 | 4.75 | 30.79 | 0.28 | 5.66 | 2.52 | 7.20 | <0.001 |
C16:1* | 2.09 | 0.05 | 13.89 | 2.38 | 0.01 | 1.40 | 0.29 | 5.69 | <0.001 |
C18:0 | 9.02 | 0.10 | 7.31 | 9.01 | 0.12 | 8.43 | 0.01 | 0.06 | >0.05 |
C18:1* | 29.25 | 0.23 | 5.04 | 22.69 | 0.25 | 7.07 | 6.56 | 19.31 | <0.001 |
C18:2* | 3.60 | 0.13 | 23.62 | 2.46 | 0.05 | 12.91 | 1.14 | 8.18 | <0.001 |
C18:3* | 1.01 | 0.05 | 33.37 | 0.67 | 0.04 | 36.17 | 0.34 | 5.31 | <0.001 |
C20:0 | 0.13 | 0.004 | 20.58 | 0.12 | 0.003 | 16.92 | 0.01 | 2.00 | >0.05 |
C22:0 | 0.07 | 0.002 | 20.11 | 0.07 | 0.003 | 27.84 | 0.00 | 0.00 | >0.05 |
Other | 4.09 | 0.05 | 7.96 | 4.67 | 0.08 | 10.98 | -0.58 | 6.15 | <0.001 |
Winter | |||||||||
C4:0 | 2.83 | 0.06 | 14.37 | 3.20 | 0.08 | 15.79 | 0.37 | 3.70 | <0.001 |
C6:0 | 1.78 | 0.04 | 12.63 | 1.59 | 0.02 | 7.61 | 0.19 | 4.25 | <0.001 |
C8:0 | 1.27 | 0.03 | 17.28 | 1.32 | 0.03 | 16.73 | 0.05 | 1.18 | >0.05 |
C10:0 | 2.93 | 0.08 | 17.79 | 2.01 | 0.02 | 5.06 | 0.92 | 11.16 | <0.001 |
C10:1 | 0.30 | 0.01 | 20.73 | 0.21 | 0.00 | 5.91 | 0.09 | 8.83 | <0.001 |
C12:0 | 3.31 | 0.09 | 17.72 | 2.50 | 0.06 | 15.73 | 0.81 | 7.49 | <0.001 |
C14:0 | 11.03 | 0.18 | 10.21 | 9.42 | 0.13 | 8.62 | 1.61 | 7.25 | <0.001 |
C14:1* | 1.12 | 0.03 | 19.21 | 1.40 | 0.01 | 6.57 | 0.28 | 8.85 | <0.001 |
C16:0 | 27.76 | 0.35 | 8.03 | 28.03 | 0.26 | 5.91 | 0.27 | 0.62 | >0.05 |
C16:1* | 2.08 | 0.04 | 11.90 | 1.55 | 0.01 | 3.78 | 0.53 | 12.85 | <0.001 |
C18:0 | 9.94 | 0.16 | 9.95 | 10.82 | 0.18 | 10.71 | 0.88 | 3.65 | <0.001 |
C18:1* | 26.17 | 0.32 | 7.73 | 28.91 | 0.26 | 5.68 | 2.74 | 6.65 | <0.001 |
C18:2* | 2.91 | 0.10 | 21.64 | 3.35 | 0.11 | 20.39 | 0.44 | 2.96 | <0.01 |
C18:3* | 0.80 | 0.04 | 34.38 | 1.17 | 0.04 | 22.17 | 0.37 | 6.54 | <0.001 |
C20:0 | 0.22 | 0.007 | 21.08 | 0.23 | 0.01 | 20.94 | 0.01 | 0.82 | >0.05 |
C22:0 | 0.09 | 0.003 | 19.46 | 0.10 | 0.003 | 22.34 | 0.01 | 2.36 | >0.05 |
Other | 5.47 | 0.09 | 10.76 | 4.19 | 0.05 | 7.75 | 1.28 | 12.43 | <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)