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Table 4 Relative proportion of selected fatty acids in milk (%)

From: Effects of dietary hemp seed oil to sows on fatty acid profiles, nutritional and immune status of piglets

  Dietary treatment1 SEM P-value
  H HS S   Diet Day2 × Diet
Day of lactation 0 2 16 28 0 2 16 28 0 2 16 28    
SFA 26.2 27.6 38.8 38.6 25.7 27.0 38.2 38.1 25.9 27.3 38.4 38.3 1.093 0.85 0.67
C14:0 1.27 1.53 3.53 3.56 1.12 1.38 3.37 3.40 1.05 1.32 3.31 3.35 0.155 0.26 0.69
C16:0 19.5 20.4 30.8 31.24 30.6 18.8 19.6 30.0 20.2 21.1 31.5 31.3 0.896 0.07 0.08
C18:0 4.93 5.30 4.12 3.93 4.87 5.25 4.06 3.87 4.75 5.13 3.94 3.75 0.245 0.68 0.73
MUFA 37.8bc 41.4c 30.3ab 26.3a 36.4abc 40.3bc 35.4abc 36.4abc 37.0abc 38.7abc 32.4abc 29.3abc 3.283 0.02 0.05
C16:1n-9 1.20a 1.05a 0.32a 0.26a 1.33b 1.18b 0.44b 0.39b 1.24ab 1.08ab 0.35ab 0.29ab 0.054 0.02 0.32
C16:1n-7 2.33 3.28 8.23 7.66 2.37 3.32 8.27 7.70 2.13 3.07 8.03 7.45 0.569 0.88 0.36
C18:1n-9 30.2 33.0 23.1 22.2 31.9 34.7 24.8 23.9 28.2 31.0 21.1 20.2 2.442 0.26 0.12
C18:1n-7 2.67b 2.78b 1.87a 1.70a 2.96b 3.06b 2.16a 1.99a 2.75b 2.85b 1.94a 1.77a 0.153 0.04 0.10
PUFA 35.2ab 29.6ab 28.9ab 34.1ab 36.1b 30.9ab 25.6ab 23.9a 36.5ab 34.3ab 26.6ab 30.5ab 3.371 0.03 0.05
C18:2n-6 28.9 24.8 20.5 22.3 28.9 24.7 20.4 22.2 32.5 28.4 24.7 25.9 2.429 0.26 0.15
C18:3n-6 1.16b 0.94b 0.66b 0.77b 0.87a 0.65a 0.37a 0.48a 0.65a 0.44a 0.16a 0.26a 0.110 0.002 0.14
C18:3n-3 4.43b 3.48a 3.76b 5.31b 3.41a 2.81a 2.74a 2.52a 2.63a 2.40a 2.29a 2.32a 0.667 0.003 0.03
C18:4n-3 0.24c 0.20bc 0.14ab 0.19abc 0.13abc 0.11abc 0.08abc 0.06ab 0.01ab 0.03ab 0.01ab 0.00a 0.037 < 0.001 0.04
C20:2n-6 0.43 0.45 0.36 0.33 0.44 0.46 0.37 0.34 0.48 0.50 0.41 0.38 0.029 0.15 0.10
C20:3n-6 0.81 0.73 0.56 0.43 0.86 0.78 0.61 0.47 0.95 0.87 0.70 0.57 0.077 0.14 0.80
C20:4n-6 0.18a 0.16b 0.17b 0.17b 0.16b 0.16b 0.12b 0.12b 0.14b 0.13b 0.09a 0.10 0.021 0.003 0.01
C20:5n-3 0.15c 0.13c 0.11a 0.11a 0.14c 0.11b 0.09a 0.09a 0.10b 0.08a 0.06a 0.06a 0.016 0.03 0.95
C22:5n-6 0.10a 0.09a 0.10a 0.05a 0.12a 0.11a 0.12a 0.07a 0.17b 0.16b 0.17b 0.12b 0.019 0.001 0.34
C22:5n-3 0.41 0.35 0.27 0.21 0.46 0.40 0.31 0.25 0.46 0.39 0.31 0.25 0.045 0.43 0.96
C22:6n-3 0.06 0.05 0.02 0.02 0.07 0.06 0.03 0.03 0.05 0.05 0.02 0.01 0.011 0.20 0.42
n-6 32.1 28.1 23.8 25.8 29.4 25.5 21.2 23.2 33.1 29.1 24.8 26.8 1.925 0.13 0.06
n-3 5.94a 5.27a 5.32a 5.85a 4.15b 3.48b 3.53b 4.06b 3.47c 2.80c 2.86c 3.38c 0.471 < 0.001 0.07
n-6/n-3 5.59a 5.75a 4.62a 4.30a 7.25b 7.41b 6.28b 5.97b 9.89c 10.0c 8.92c 8.60c 0.496 < 0.001 0.96
  1. SEM standard error of mean
  2. 1H = basal diet and hemp seed oil in ratio 95:5, HS = basal diet and mix of soybean and hemp seed oils (50:50) in ratio 95:5; S = basal diet and soybean oil in ratio 95:5; basal diet formulated according to Danish Nutrient Standards for Lactating Sows [24]
  3. 2Effect of day is significant for all lactation stages, except total n-3 fatty acids P = 0.12
  4. a,b,cMean values within a row with unlike superscript letters are significantly different