Table 4. Effect of harvest and wilting time on chemical composition and quality of rye silage

Harvest date	Wilting period¹⁾	DM	CP	ADF	NDF	IVDMD	DM loss	WSC	NH₃-N / TN	TDN	RFV
Harvest date	Wilting period¹⁾	--------------------------------------------------------- g/kg DM ---------------------------------------------------------								%	RFV
April 30 (Boot)	0 h	153.43^c	143.55^a	309.17^a	508.73^a	784.70^b	119.91^a	37.41^c	164.32^a	64.48^b	119^b
	6 h	186.44^b	142.51^a	283.87^b	470.63^b	815.07^a	83.06^b	121.67^b	97.55^b	66.48^a	132^a
	24 h	236.61^a	126.16^b	267.37^b	476.50^b	822.00^a	54.03^c	157.78^a	88.48^b	67.78^a	133^a
	Mean	192.16^C	137.41^A	286.80^C	485.29^C	807.26^A	83.00^B	105.62^A	116.78^C	66.24^A	128^A
May 9 (Heading)	0 h	160.22^c	128.35^a	342.30^a	572.40^a	731.27^a	50.06^a	21.85^b	161.72^a	61.86^a	101^a
	6 h	193.77^b	129.31^a	350.33^a	580.03^a	749.97^a	45.08^a	18.52^b	154.68^a	61.22^a	99^a
	24 h	284.25^a	128.70^a	343.90^a	582.43^a	752.90^a	22.28^b	45.00^a	124.79^b	61.73^a	99^a
	Mean	212.75^B	128.79^B	345.51^B	578.29^B	744.71^B	39.14^C	28.46^B	147.07^B	61.61^B	100^B
May 15 (Blooming)	0 h	163.75^b	85.36^a	449.27^a	675.77^a	612.33^b	181.84^b	21.48^a	316.82^a	53.41^b	74^b
	6 h	268.80^a	90.62^a	425.00^b	659.73^b	656.17^a	198.17^a	25.56^a	196.30^c	55.33^a	79^a
	24 h	308.12^a	84.80^a	429.53^b	678.73^a	633.23^ab	93.32^c	21.11^a	269.16^b	54.97^a	76^ab
	Mean	246.89^A	86.92^C	434.60^A	671.41^A	633.91^C	157.78^A	22.72^C	260.76^A	54.57^C	76^C
SEM		18.84	2.47	1.49	2.61	8.52	16.24	3.81	10.54	0.84	4.29
p-value	H	< .0001	< .0001	< .0001	< .0001	< .0001	< .0001	< .0001	< .0001	< .0001	< .0001
	W	< .0001	0.0012	0.0016	0.0219	0.0013	< .0001	< .0001	< .0001	0.0016	0.0081
	H × W	0.0087	0.0035	0.0080	0.0098	0.3556	< .0001	< .0001	< .0001	0.0078	0.0042

0 h, no wilting before ensiling; 6 h, wilted for 6 hours before ensiling; 24 h, wilted for 24 hours before ensiling.
Within a column, different superscripts in capital letters indicate that main plots differ;
those in lower-case letters indicate that sub-plots differ (p < 0.05).
DM, dry matter; CP, crude protein; ADF, acid detergent fiber; NDF, neutral detergent fiber; IVDMD, in vitro dry matter digestibility; WSC, water soluble carbohydrate; NH₃-N, ammonia nitrogen; TN, total nitrogen; TDN, total digestible nutrient; RFV, relative feed value; H, Harvest date; W, wilting.