Table 4.

Effect of yeast culture supplementation (SC)¹ on milk yield and milk composition on Farm 2

Item	Control	SC	SEM	p-value
				SC	DIM	SC×DIM
Dry matter intake (kg/d)	18.5	18.8	0.182	0.313	0.035	0.061
Milk yield (kg/d)	18.0	19.4	0.412	0.017	<0.001	0.028
Milk fat (%)	2.79	3.11	0.065	0.009	0.008	0.049
Milk protein (%)	2.97	3.08	0.012	<0.001	<0.001	<0.001
Milk fat yield (kg/d)	0.50	0.61	0.019	0.002	0.001	0.371
Milk protein yield (kg/d)	0.53	0.59	0.013	0.001	<0.001	0.030
3.5% FCM (kg/d)	15.9	18.3	0.338	0.002	0.035	0.362
Feed efficiency	0.87	0.99	0.020	0.011	<0.001	0.218

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