Table 4.

Effect of feeding system on milk production.

Parameter	Measure Unit	Housing	Grazing	SEM 1	p
Milk	kg/day	25.6	25.5	1.47	0.9615
Fat	%	3.94	4.15	0.141	0.0419
Protein	%	3.59	3.49	0.127	0.5724
Casein	%	2.79	2.73	0.101	0.7059
Urea	mg/dL	36.1	29.5	0.706	0.0153
Lactose	%	4.96	4.97	0.069	0.9076
Somatic cells	log10 n/mL	5.13	4.89	0.127	0.0424
Total bacterial count	log10 n/mL	6.24	5.95	0.140	0.0335

¹ SEM = standard error of mean.