Table 3. Urea-N, Glucose and NEFA concentrations (LSM ±SEM) in plasma and follicular fluid from mid-lactating Girolando dairy cows fed diets with different crude protein (CP) concentrations.

Variable	Treatments (g Kg-1 DM)								P-value
	156 (24)		139 (20)		132 (20)		127 (24)		Linear	Quad
Urea-N (mg/dL)
Plasma	34.54	±1.40	26.81	±1.50	24.05	±1.48	18.44	±1.38	<0.0001	0.0215
Follicular Fluid	28.83	±1.47	19.66	±1.65	18.23	±1.60	14.26	±1.42	<0.0001	0.0085
Glucose (mg/dL)
Plasma	63.04	±1.07	64.63	±1.20	65.30	±1.18	65.29	±1.08	0.2298	0.3121
Follicular Fluid	69.60	±3.44	70.55	±4.01	71.05	±3.80	73.97	±3.42	0.3663	0.9526
NEFA (mmol/L)
Plasma	0.061	±0.002	0.069	±0.002	0.065	±0.002	0.061	±0.002	0.4277	0.1357
Follicular Fluid	0.069	±0.006	0.065	±0.006	0.081	±0.008	0.068	±0.006	0.9897	0.2706