Table 3.

Effect of yeast culture supplementation (SC)¹ on milk yield and milk composition on Farm 1

Item	Control	SC	SEM	p-value
				SC	DIM	SC×DIM
Dry matter intake (kg/d)	18.7	19.0	0.211	0.505	0.436	0.417
Milk yield (kg/d)	19.5	20.4	0.226	0.009	<0.001	0.084
Milk fat (%)	3.12	3.24	0.052	0.219	0.170	0.003
Milk protein (%)	2.97	3.00	0.017	0.376	0.001	0.377
Milk fat yield (kg/d)	0.60	0.66	0.008	0.003	0.008	0.79
Milk protein yield (kg/d)	0.58	0.61	0.009	0.005	<0.001	0.169
3.5% FCM (kg/d)	18.1	19.5	0.211	0.001	<0.001	0.408
Feed efficiency	0.99	1.04	0.016	0.165	0.054	0.265

¹SC = 56 g/cow/d, Diamond V Original XP, Diamond V, Cedar Rapids, Iowa, USA.