. 2020 Jun 23;34(1):56–65. doi: 10.5713/ajas.20.0079

Table 4.

In vitro rumen digestibility and gas production kinetics in culture fluids after 48 h incubation with different moisture content and additives of sudangrass silage

Items	Treatments¹⁾								SEM	p-value

	Fresh				Wilted

	CK	M	LP	M+LP	CK	M	LP	M+LP		Wilted	Additives	Wilted ×additives
IVDMD	0.64^e	0.65^de	0.67^cd	0.66^cde	0.66^cde	0.69^bc	0.70^b	0.73^a	0.01	<0.001	0.001	0.124
IVCPD	0.62^bc	0.60^cd	0.61^bcd	0.64^ab	0.59^d	0.61^cd	0.65^a	0.65^a	0.01	0.351	<0.001	0.007
IVNDFD	0.51^d	0.61^a	0.56^bc	0.54^c	0.60^a	0.54^c	0.58^ab	0.60^a	0.01	0.003	0.199	<0.001
IVADFD	0.29^e	0.36^abc	0.37^ab	0.38^a	0.29^e	0.33^cd	0.31^de	0.34^bcd	0.01	<0.001	<0.001	0.085
Gas production (mL/g DM)	51.2^f	56.5^e	61.0^d	63.1^c	55.4^e	63.7^c	68.4^b	72.0^a	1.35	<0.001	<0.001	<0.001
Gas production kinetic
A (mL)	51.2^f	56.3^e	60.8^d	62.9^c	55.2^e	64.1^c	68.2^b	72.1^a	1.36	<0.001	<0.001	<0.001
Gas production rate (/h)	0.26^f	0.29^e	0.32^d	0.33^c	0.29^e	0.33^c	0.36^b	0.38^a	0.01	<0.001	<0.001	0.005
Lag (h)	0	−0.01	0.01	−0.01	−0.02	0.01	0.01	0.01	0.00	0.681	0.254	0.341
Half time (h)	4.58^b	2.95^f	3.84^d	3.57^e	5.10^a	4.04^c	4.14^c	2.58^g	0.16	<0.001	<0.001	<0.001
AGPR (mL/h)	9.77^f	12.0^e	13.9^d	15.0^c	12.0^e	15.4^c	17.7^b	19.5^a	0.63	<0.001	<0.001	<0.001

SEM, standard error of the mean; IVDMD, in vitro dry matter digestibility; IVCPD, in vitro crude protein digestibility; IVNDFD, in vitro neutral detergent fibre digestibility; IVADFD, in vitro acid detergent fibre digestibility; DM, dry matter; A, the asymptotic gas production; Lag, the initial delay time in the onset of gas production; AGPR, the average gas production rate.

¹⁾

CK, control; M, molasses; LP, L. plantarum, M+LP, molasses+L. plantarum.

^a–g

Means within the same row with different superscripts differ significantly from each other (p<0.05).