Table 4.   Effect of flaxseed cake levels on the content of lipid fractions of the blood serum in laying hens.

Flaxseed cake, %	TRIG, mg/dL	vLDL, mg/dL	TC, mg/dL	LDL, mg/dL	HDL, mg/dL	HDL/LDL	RHCH
0	166.4	33.3	171.0	34.5	99.2b	2.89	0.201
5	165.0	33.0	173.1	33.5	102.4ab	3.00	0.204
10	165.6	33.2	173.8	34.2	103.2a	3.10	0.201
RMSE	1.91	0.376	2.84	1.29	2.63	0.148	0.0053
P-value	0.463	0.443	0.290	0.468	0.046	0.091	0.813

TRIG, triglycerides; vLDL, very low-density lipoprotein; TC, total cholesterol; LDL, low-density lipoprotein; HDL, high-density lipoprotein; HDL/LDL, high-density lipoprotein:low-density lipoprotein ratio; RHCH, risk of hypercholesterolemia (LDL:TC); RMSE, Root mean square error.