Coordinated response of milk bacterial and metabolic profiles to subacute ruminal acidosis in lactating dairy cows

Table 2 Comparison of milk production and milk composition in cows fed the conventional (CON) and high-concentrate (HC) diets

Item	CON	HC	SEM	P-value
Item	CON	HC	SEM	Diet	Day	Diet × Day
Milk yield, kg/d	19.26	18.90	0.46	0.752	0.427	0.988
4% FCM^a, kg/d	19.45	18.81	0.47	0.539	0.430	0.989
Milk fat percentage, %	4.31	3.97	0.09	0.034	0.042	0.744
Milk protein percentage, %	3.84	3.79	0.06	0.616	0.055	0.516
Milk lactose percentage, %	5.35	5.20	0.06	0.128	0.001	0.619
Milk fat, kg/d	0.80	0.75	0.02	0.409	0.755	0.887
Milk protein, kg/d	0.71	0.72	0.02	0.922	0.736	0.865
Lactose, kg/d	0.99	0.98	0.03	0.831	0.039	0.915

^a4% FCM = 0.4 × M + 15 × M × F (M Milk yield, F Average milk fat percentage, FCM Fat corrective milk)

ISSN: 2049-1891