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Table 2 Effect of genotype, lactation stage and interaction between genotype and lactation stage on fatty acid relative to total % fatty acid content of free-ranging indigenous goats

From: Comparative fatty-acid profile and atherogenicity index of milk from free grazing Nguni, Boer and non-descript goats in South Africa

FAME (% of total fatty acid ratio) Genotype Lactation stage P value
Nguni (10) Boer (10) Non-descript (10) Early Late G L G × L
Butyric 0.66b ± 0.02 0.69ab ± 0.03 0.76a ± 0.02 0.73a ± 0.02 0.68a ± 0.02 0.0300 0.2116 0.8995
Caproic 1.47 ± 0.04 1.60 ± 0.07 1.64 ± 0.05 1.49b ± 0.04 1.66a ± 0.04 0.0390 0.0113 0.1959
Caprylic 2.23a ± 0.09 2.43a ± 0.15 2.58a ± 0.11 2.14b ± 0.10 2.69a ± 0.10 0.0835 0.0004 0.2603
Capric 8.23a ± 0.41 9.32a ± 0.66 9.44a ± 0.48 7.57b ± 0.43 10.43a ± 0.43 0.1314 0.0001 0.2320
Hendecanoic 0.01a ± 0.004 0.01a ± 0.007 0.01a ± 0.005 0.01a ± 0.004 0.02a ± 0.004 0.4672 0.2719 0.1523
Lauric 3.39a ± 0.18 3.80a ± 0.29 3.83a ± 0.21 3.18b ± 0.19 4.17a ± 0.19 0.2427 0.0006 0.1633
Tridecoic 0.01a ± 0.004 0.02a ± 0.007 0.02a ± 0.005 0.02a ± 0.004 0.02a ± 0.005 0.1187 0.9308 0.9036
Myristic 7.90c ± 0.33 9.49ab ± 0.54 9.56a ± 0.39 8.20b ± 0.35 9.77a ± 0.35 0.0038 0.0027 0.6084
Myristoleic 0.03a ± 0.009 0.01a ± 0.01 0.04a ± 0.01 0.02a ± 0.01 0.03a ± 0.01 0.2323 0.6065 0.0965
Pentadecylic 0.82c ± 0.03 0.88bc ± 0.05 1.03a ± 0.04 0.88a ± 0.03 0.94a ± 0.03 0.0008 0.2457 0.1756
Palmitic 24.79c ± 0.36 27.99a ± 0.59 26.07b ± 0.43 25.61b ± 0.38 26.94a ± 0.38 0.0001 0.0179 0.7137
Palmitoleic 0.47a ± 0.02 0.48a ± 0.04 0.56a ± 0.33 0.56a ± 0.03 0.45b ± 0.02 0.0905 0.0127 0.0641
Margaric 0.81a ± 0.02 0.86a ± 0.04 0.89a ± 0.03 0.97a ± 0.02 0.74b ± 0.02 0.1606 0.0001 0.0070
Heptadecenoic 0.19a ± 0.02 0.19a ± 0.04 0.23a ± 0.03 0.23a ± 0.02 0.18a ± 0.02 0.6887 0.1581 0.2746
Stearic acid 17.92a ± 0.48 16.19bc ± 0.76 15.26c ± 0.56 17.33a ± 0.50 15.59b ± 0.49 0.0024 0.0173 0.6811
Elaidic 0.20a ± 0.01 0.06c ± 0.02 0.15b ± 0.01 0.13a ± 0.01 0.14a ± .01 0.0001 0.7794 0.0455
Oleic 26.59a ± 1.04 21.90bc ± 1.66 22.64c ± 0.1.22 26.25a ± 1.09 21.16b ± 1.08 0.0174 0.0017 0.1744
Vaccenic 0.43a ± 0.02 0.25bc ± 0.03 0.26c ± 0.02 0.29a ± 0.02 0.33a ± 0.02 0.0001 0.2171 0.0006
Linolelaidic 0.21a ± 0.01 0.07bc ± 0.02 0.11b ± 0.01 0.11a ± 0.01 0.15a ± 0.01 0.0001 0.0524 0.0064
Linoleic 1.26c ± 0.08 1.78bc ± 0.12 1.97a ± 0.09 1.82a ± 0.08 1.52b ± 0.08 0.0001 0.0134 0.0444
Conjugated linoleic acid 0.63a ± 0.04 0.16c ± 0.06 0.53ab ± 0.04 0.38b ± 0.04 0.50a ± 0.04 0.0001 0.0465 0.0012
α-Linolenic 1.09c ± 0.06 1.12bc ± 0.10 1.40a ± 0.07 1.26a ± 0.07 1.15a ± 0.07 0.0126 0.2882 0.0063
Nonoadecanoic 0.11a ± 0.01 0.13a ± 0.02 0.10a ± 0.01 0.11a ± 0.01 0.12a ± 0.01 0.4942 0.5195 0.3870
Arachidic 0.18c ± 0.02 0.29b ± 0.03 0.39a ± 0.02 0.30a ± 0.02 0.27a ± 0.02 0.0001 0.4291 0.3246
Eicosatrienoic 0.04bc ± 0.007 0.05b ± 0.01 0.12a ± 0.009 0.07a ± 0.008 0.07a ± 0.008 0.0001 0.8894 0.7003
Arachidonic 0.03c ± 0.006 0.06ab ± 0.01 0.07a ± 0.007 0.06a ± 0.006 0.04b ± .006 0.0040 0.0223 0.9616
Eicosopentaenoic 0.05a ± 0.006 0.01bc ± 0.009 0.03b ± 0.007 0.04a ± 0.006 0.02a ± 0.006 0.0102 0.1031 0.8608
Heneicosanoic 0.04b ± 0.006 0.02bc ± 0.01 0.08a ± 0.007 0.04a ± 0.006 0.05a ± 0.006 0.0001 0.3325 0.1608
Docosapentaenoic 0.07b ± 0.009 0.04bc ± 0.01 0.09a ± 0.01 0.09a ± 0.009 0.05b ± 0.009 0.0176 0.0195 0.3499
  1. Mean (± S.E.) values within rows with different superscripts differ significantly (P < 0.05) between genotypes and lactation stages
  2. S.E. standard error