Table 5.

Effect of recombinant fibrolytic enzymes on true DM, NDF, ADF, and N disappearance of a barley straw–concentrate diet in the RUSITEC

Item	Treatments1				SEM	Contrasts P-value
	Control	EGL7A	XYL10A	XYL10C		Con vs. EGL7A	Con vs. XYL10A	Con vs. XYL10C
True DM disappearance, %
Concentrate	64.7	65.4	68.4	64.0	3.84	0.67	0.03	0.70
Straw	49.8	49.4	51.1	50.0	0.95	0.42	0.01	0.67
Total diet	54.3	54.2	56.2	54.3	1.83	0.93	0.01	0.95
NDF disappearance, %
Concentrate	58.4	59.4	63.2	58.2	3.83	0.73	0.08	0.93
Straw	42.4	42.7	43.7	42.6	1.18	0.61	0.04	0.85
Total diet	45.0	45.1	46.7	45.2	1.51	0.90	0.06	0.75
ADF disappearance, %
Concentrate	44.4	46.2	46.9	43.6	3.38	0.53	0.38	0.78
Straw	34.9	34.8	36.4	35.2	1.37	0.88	0.05	0.67
Total diet	36.3	36.5	37.9	36.5	1.56	0.72	0.03	0.79
N disappearance, %
Concentrate	65.2	60.4	62.3	63.6	6.91	0.15	0.39	0.63
Straw	68.7	69.9	71.4	71.2	2.28	0.45	0.08	0.10
Total diet	66.3	63.4	65.2	66.0	4.17	0.14	0.59	0.90

¹EGL7A = endo-β-1,4-glucanase, EC 3.2.1.4, GH7 from Thielavia terrestris; XYL10A = 1,4-β-xylanase, EC 3.2.1.8, GH10 from Rasamsonia emersonii; and XYL10C = 1,4-β-xylanase, EC 3.2.1.8, GH10 from Aspergillus niger.