Table 3. Milk performance on herd test days of cows receiving plant bioactive lipid compounds and biotin (PBLC+B) from d -21 to 37 relative to parturition, cows receiving a monensin bolus (MON) at d -21 or cows receiving no such supplements (CON).

Item		First test day					Second test day
	CON	PBLC+B	MON	SEM	P-value	CON	PBLC+B	MON	SEM	P-value
Days after calving	22	20	21	4.4	0.55	54	52	53	5.2	0.86
Milk yield, kg/d	39.1	39.0	41.1	3.06	0.72	42.0	45.0	46.3	2.38	0.17
ECM yield, kg/d	40.4	41.5	42.2	2.67	0.52	40.6	44.4	42.7	2.31	0.13
Fat, %	4.59	4.64	4.53	0.276	0.93	3.97ab	4.09a	3.56b	0.160	0.004
Protein, %	3.11	3.32	3.18	0.092	0.076	2.98	3.04	2.98	0.066	0.53
Urea, mg/L	240	236	267	19.3	0.17	254	261	266	15.7	0.74
Somatic cell count, cells/L	4011	97	61	34.5	0.83	7411	124	169	71.2	0.45

Data are presented as means and pooled SEM of 17 cows in the CON group, 18 cows in the PBLC+B group and 18 cows in the MON group.

^abSuperscript letters indicate differences among treatment groups at P < 0.05.

¹The CON group included two cows with >1000 somatic cells/L at each test day

ECM = energy corrected milk; SEM = standard error of mean