Variation in fatty acid composition of milk and cheese from cows grazed on two alpine pastures

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Table III.

Daily forage intake (kg·LU⁻¹·d⁻¹), total fat in forage (g·100 g⁻¹ DM), and fatty acids intake (g·LU⁻¹·d⁻¹) by grazing animals depending on the exploited pasture type (Festuca nigrescens (F) and Trifolium alpinum (T) pastures), and on the experimental period (P1 and P2). Vegetation samples collected on d 6 for P1, and on d 18 for P2, the day before exploitation started into experimental paddocks.

	F		T		SEM¹	Pasture²	Period²
	P1	P2	P1	P2	SEM¹	Pasture²	Period²
Forage intake (DM)	14.02	18.99	10.16	13.15	2.98	NS	NS
Forage fat (DM)	1.61	1.49	1.97	1.85	0.14	*	NS
FA intake
12:0	8.66	8.84	1.76	1.92	1.24	**	NS
13:0	1.15	1.17	1.84	2.00	0.20	NS	NS
14:0	36.55	37.35	19.82	21.61	3.00	**	NS
15:0	0.83	0.85	15.12	16.49	2.32	***	NS
16:0	48.49	49.55	72.78	79.36	4.71	***	NS
16:1	0.32	0.32	1.17	1.28	0.17	**	NS
17:0	0.68	0.70	5.07	5.53	0.73	***	NS
17:1	5.66	5.79	8.15	8.89	2.23	NS	NS
18:0	19.31	19.73	20.85	22.73	0.60	NS	NS
18:1 n-9	15.39	15.73	10.72	11.69	0.86	**	NS
18:2 n-6	43.45	44.40	17.37	18.94	5.93	*	NS
18:3 n-6	25.40	25.95	8.31	9.07	2.70	***	NS
18:3 n-3	18.77	19.18	17.04	18.58	1.57	NS	NS

Standard error of the mean.

Statistical significance: NS: P > 0.05; *P ≤ 0.05; **P ≤ 0.01; ***P ≤ 0.001.