. Author manuscript; available in PMC: 2018 May 22.

Published in final edited form as: J Dairy Sci. 2013 Dec 18;97(2):754–763. doi: 10.3168/jds.2013-6925

Table 3.

Effect of feed restriction (FR) on least squares means for DMI, milk yield, NEFA, glucose, insulin, progesterone, and FSH during the FR period and BW and BCS change

Item	Treatment (Trt)¹				SEM	P <

	AL	25FR	50FR	50ST		Trt	Day	Trt × Day
DMI (kg/d)	26.9^a	20.2^b	14.2^c	15.6^c	0.96	0.001	0.001	0.01
NE_L intake (Mcal/d)	41.4^a	33.4^b	24.6^c	22.3^c	1.20	0.001	0.001	0.02
Milk yield (kg/d)	40.8^a	36.4^b	31.4^c	24.4^d	1.33	0.001	0.001	0.001
NEFA (μEq/L)	156.3^c	225.3^c	357.5^b	647.7^a	37.5	0.001	0.001	0.001
Glucose (mg/dL)	53.6^a	51.9^b	50.1^c	48.3^d	0.58	0.001	0.001	0.03
Insulin (μIU/mL)	16.65^a	11.16^b	8.27^c	6.24^c	1.05	0.001	0.01	0.02
Progesterone (ng/mL)	6.87^c	7.84^ab	7.42^bc	8.50^a	0.84	0.02	0.08	0.45
FSH (ng/mL)	0.206	0.191	0.170	0.185	0.019	0.46	0.52	0.60
BW change (kg/14 d)	−8.5^a	−30.0^b	−45.5^c	−36.1^bc	5.1	0.001	—	—
BCS change	0.03^a	−0.13^b	−0.16^b	−0.19^b	0.05	0.02	—	—

^a–d

Means in the same row with different superscripts differ (P < 0.05).

The dietary treatments were 4 levels of feed intake: ad libitum (AL), 25% feed restriction (25FR), 50% feed restriction (50FR), and 50% feed restriction + 50% wheat straw (50ST).