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Table 2 Prediction equations of standardized ileal digestibility in pigs from values obtained for rats

From: Alternative prediction methods of protein and energy evaluation of pig feeds

Equationsa

n

R 2

SIDPIG P = 21.822 + 0.70826 × SIDRAT P

13

0.759

SIDPIG Lys = 1.4407 + 0.98454 × SIDRAT Lys

15

0.929

SIDPIG Met = 9.7265 + 0.88122 × SIDRAT Met

14

0.445

SIDPIG Cys = 36.247 + 0.50543 × SIDRAT Cys

13

0.761

SIDPIG Thr = 13.491 + 0.84369 × SIDRAT Thr

15

0.887

SIDPIG Ile = 1.0205 + 1.0004 × SIDRAT Ile

15

0.947

  1. acalculated from results of Moughan et al. [22]; Moughan et al. [23]; Smith et al. [24]; Donkoh et al. [26]; Rutherfurd and Moughan [27]; Święch and Buraczewska [28]; Święch [91]
  2. SIDPIG and SIDRAT – Standardized ileal digestibility determined in pigs and rats expressed in %, respectively; P Protein, Lys Lysine, Met Methionine, Cys Cysteine, Thr Threonine, Ile Isoleucine
  3. R 2 – coefficient of determination