Table 4. Compositions of fatty acids of milk from cows fed with TMR based feed and grazing on mountain pasture (mg/100 g FA)

Milk		TMR milk				Pasture milk
Milking date		Jun 23		Sep 11		Jun 23		Sep 11
ω-6	Linoleic acid	53.54	±5.11	41.39	±15.56	32.21	±5.71	26.52	±10.47
	γ-Linolenic acid	1.11	±0.33	0.74	±0.45	1.16	±0.88	1.73	±0.27
	Arachidonic acid	0.26	±0.44	0.17	±0.30	1.05	±0.00	0.22	±0.04
	DPA	-		-		-		-
Total ω-6		54.90	±5.88	42.31	±16.31	34.42	±6.58	28.47	±10.78
ω-3	α-Linolenic acid	8.80	±1.09	6.85	±2.52	9.06	±1.62	8.88	±3.20
	EPA	0.00	±0.00	0.00	±0.00	0.74	±0.00	0.00	±0.00
	DHA	0.00	±0.00	0.00	±0.00	0.00	±0.00	0.00	±0.00
Total ω-3		8.80	±1.09	6.85	±2.52	9.79	±1.62	8.88	±3.20
Ratio of ω-6 to ω-3		6.24		6.18		3.51		3.21

All values are presented as mean±SD.
DPA, cocosaentaenoic acid; EPA, eicosapentaenoic acid; DHA, docosahexaenoic acid.