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Table 2 Calibration and cross-validation statistics of digestible energy (DE) and metabolizable energy (ME) of corn fed to growing pigs (MJ/kg, dry matter basis)

From: Use of near-infrared reflectance spectroscopy for the rapid determination of the digestible energy and metabolizable energy content of corn fed to growing pigs

    

Calibration

Cross-validation

Items

Derivative

Scatter

Factors

n

Mean

SDa

SECb

RSQcal c

SECVd

R2 CV e

RPDcv f

DED g

2,12,12,1

SNVD

13

86

16.41

0.759

0.196

0.89

0.266

0.87

2.85

MED g

2,10,10,1

SNVD

11

85

15.98

0.741

0.206

0.87

0.267

0.86

2.78

DEC h

2,10,10,1

SNVD

12

87

16.46

0.728

0.201

0.88

0.273

0.85

2.67

MEC h

2,8,8,1

SNVD

10

86

16.20

0.711

0.215

0.86

0.280

0.84

2.54

  1. aStandard deviation
  2. bStandard error of calibration
  3. cCoefficient of determination for calibration
  4. dStandard error of cross-validation
  5. eCoefficient of determination for cross-validation
  6. fRPDCV = SD/SECV
  7. gDED and MED values determined by digestion-metabolism experiments using growing pigs
  8. hDEC and MEC values calculated according to the equations of Noblet and Perez [6]
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Journal of Animal Science and Biotechnology

ISSN: 2049-1891