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Table 8 Prediction equations of standardized ileal digestibility of fat in different oil sourcesa

From: Effects of dietary oil sources and fat extraction methods on apparent and standardized ileal digestibility of fat and fatty acids in growing pigs

Item

Equationsb

Statisticsc

R2

R2adj

C(p)

RMSE

AIC

BIC

P value

No.1

SID AEE = 99.58 − 0.15 × LSFA

0.73

0.70

123.09

1.21

5.63

2.24

0.002

No.2

SID AEE = 101.33 − 0.14 × LSFA − 0.74 × C18:0

0.85

0.80

70.41

0.98

2.13

− 2.57

0.001

No.3

SID AEE = 102.75 − 0.15 × LSFA − 0.74 × C18:0 − 0.03 × C18:1

0.92

0.88

37.76

0.78

− 2.14

− 7.25

< 0.001

  1. a The unit of fatty acid content in the equation was g/kg
  2. b AEE Acid-hydrolyzed ether extract, SID Standard terminal ileal digestibility, LSFA Long-chain saturated fatty acid (13 − 21 carbons)
  3. c R2adj Adjusted coefficient of determination, C(p) the Mallows statistic, RMSE Root mean square error, AIC Akaike’s information criterion, BIC Bayesian information criterion
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Journal of Animal Science and Biotechnology

ISSN: 2049-1891