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Table 1 Composition (% of the total fatty acids) of some individual fatty acids and ratios of fatty acids, for dairy fats from cattle raised on diet B (fresh grass (C3) and a mixed grass/maize (C3/C4) silage; n = 9, one sample was considered as outlier) and diet C (mixed grass/maize (C3/C4) silage; n = 10)

From: Impact of modern cattle feeding practices on milk fatty acid stable carbon isotope compositions emphasise the need for caution in selecting reference animal tissues and products for archaeological investigations

  Diet B Diet C p value Significance
% s.d % s.d
C14:0 7.8 2.5 8.9 1.9 0.28 NS
C16:0 32.4 2.6 36.7 4.6 0.02 *
C18:0 15.3 2.3 14.2 2.0 0.29 NS
C18:n (total) 35.7 4.7 30.1 4.6 0.02 *
C18:n /C 18:0 2.40 0.60 2.16 0.46 0.46 NS
C16:0/C18:0 2.17 0.43 2.63 0.46 0.04 *
  1. Note: datasets are compared using statistical tests that are currently usually used for this type of study, although it should be noted that the inferences are limited as the data is compositional
  2. Significance of the measurements between means at NS not significant
  3. *p value <0.05 (t tests for all but for C18:n/C18:0 ratio—Kruskall-Wallis test)