Table 5.

Effect of lipid supplement on milk fat 18:1 isomer composition in experiment 1 (least square mean results as g/100 g fatty acids)

	Treatments 1						P 2
Fatty acid	Control	CPO	EL	CPLO	MR	SEM 3	Period	Diet
trans-4 18:1	0.003d	0.026b	0.018c	0.041a	0.034ab	0.0038	0.052	<0.001
trans-5 18:1	0.050	0.055	0.068	0.018	0.098	0.0505	0.572	0.584
trans-6-8 18:1	0.28d	0.33c	0.32c	0.44a	0.40b	0.015	0.020	<0.001
trans-9 18:1	0.21d	0.26c	0.30b	0.34a	0.30b	0.017	0.235	<0.001
trans-10 18:1	0.48	0.47	0.45	0.58	0.54	0.074	0.211	0.082
trans-11 18:1	0.99	1.00	0.97	1.27	1.09	0.09	0.049	0.186
trans-12 18:1	0.40c	0.44bc	0.52a	0.56a	0.50ab	0.046	0.599	0.006
trans-15 18:1	0.37	0.34	0.52	0.36	0.34	0.038	0.386	0.265
trans-16 18:1 4	0.37c	0.37c	0.60a	0.56a	0.45b	0.044	0.948	<0.001
cis-9 18:1 5	18.8	20.9	20.4	21.7	21.5	0.73	0.084	0.070
cis-11 18:1	0.61	0.60	0.59	0.60	0.71	0.034	0.597	0.067
cis-12 18:1	0.25b	0.26b	0.40a	0.37a	0.30b	0.031	0.606	0.005
cis-13 18:1	0.09	0.07	0.12	0.11	0.09	0.016	0.425	0.154
cis-16 18:1	0.057c	0.069b	0.089a	0.089a	0.072b	0.0053	0.174	<0.003

^a,b,c,dWhere there is an overall diet effect, values within rows with differing superscripts are significantly (P<0.05) different.

¹ CPO, EL, CPLO and MR are diets containing 350 g oil/day equivalent of calcium salts of palm oil, extruded linseed, calcium salts of palm and linseed oil and milled rapeseed, respectively.

² Refers to the significance of overall effect of period and diet.

³ SEM for n=20 measurements.

⁴ Co-elutes with 18:1 cis-14.

⁵ Co-elutes with 18:1 trans-13/14.