Table 5.

Fecal near-infrared spectroscopy calibration and cross-validation statistical parameters for feces chemical components and total-tract digestibility of nutrients

Components	SEC1	r 2 cal 2	SECV3	r 2 cv 4
Feces chemical components
OM	48.5	0.94	56.5	0.92
CP	18.1	0.89	18.8	0.89
GE	1.2	0.92	1.4	0.91
FAT	11.7	0.69	12.3	0.66
NDF	55.0	0.94	60.2	0.93
Apparent total tract of nutrient digestibility
dOM5	5.5	0.94	6.7	0.91
dCP6	2.3	0.63	2.7	0.51
dGE7	2.3	0.88	2.6	0.85
dFAT8	6.0	0.79	6.8	0.74
dNDF9	7.7	0.64	8.8	0.53

¹SEC = SE of calibration.

² r ² _cal = r² of calibration.

³SECV = SE of cross-validation.

⁴ r ² _cv = r² of cross-validation.

⁵dOM = apparent total-tract digestibility of OM.

⁶dCP = apparent total-tract digestibility of CP.

⁷dGE = apparent total-tract digestibility of GE.

⁸dFat = apparent total-tract digestibility of fat.

⁹dNDF = apparent total-tract digestibility of NDF.