Table 2.

Chemical analysis of the experimental diets.

Items %	Control	CHB	CHBE
Dry matter	96.11	95.75	96.07
Crude protein	18.27	18.06	18.10
Ether extract	4.33	4.35	4.69
Nitrogen free extract	54.53	53.87	53.52
Crude fiber	12.28	13.34	12.76
Digestible energy (MJ/kg DM)a	9.35	9.47	9.45
Mg	1.92	0.21	0.18
Al	0.00	0.07	0.07
Si	0.15	0.33	0.34
P	0.56	0.75	0.82
S	0.27	0.17	0.20
K	2.37	2.22	2.11
Ca	6.22	5.80	5.86
Mn	0.02	0.02	0.02
Fe	0.16	0.34	0.32
Zn	0.02	0.02	0.02

HB: hydroponic barley; CHB: Control diet substituted with 25% hydroponic barley; CHBE: Control diet substituted with 25% hydroponic barley with 0.5 g/kg enzymes.

^aDE estimated according to Fekete¹⁹.