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Table 8 Comparison of digestible energy contents in corn determined by using the in vivo method and prediction model (kcal/kg of DM)

From: Predicting corn digestible and metabolizable energy content from its chemical composition in growing pigs

Test Observed Predicted Difference
1 4,084.05 3,996.40 87.64
2 4,108.22 4,040.57 67.65
3 4,140.16 4,101.24 38.92
4 4,023.51 4,019.85 3.66
5 4,113.16 4,047.87 65.29
6 3,950.07 4,050.91 −100.84
7 4,058.73 4,085.59 −26.85
8 4,054.97 4,062.27 −7.30
9 4,046.38 4,007.67 38.71
10 3,997.07 3,989.82 7.25
11 4,044.88 3,969.98 74.89
12 4,062.20 4,042.23 19.97
13 4,062.67 3,994.71 67.95
14 4,009.57 3,974.33 35.23
15 3,957.41 3,962.92 −5.51
16 4,036.46 4,036.31 0.15
17 3,983.54 3,970.58 12.96
18 4,011.42 3,993.93 17.49
19 3,932.03 3,951.91 −19.88
20 3,980.49 4,035.48 −54.99
21 4,065.07 4,054.47 61.22
22 4,024.33 4043.60 −19.28
23 4,025.92 4,020.54 5.38
24 4,020.02 4,024.04 −4.02
25 4,016.88 4,005.85 11.03
26 4,051.08 3,996.01 55.06
27 4,058.55 3,987.99 70.57
28 4,051.18 4,018.28 32.90
29 4,088.96 4,036.06 52.90
30 4,087.01 4,028.30 58.71
31 4,121.96 4,017.35 104.61
32 4,084.62 4,055.96 28.66
33 4,002.90 4,050.52 −47.62
34 3,979.24 4,014.76 −35.52
35 4,003.71 4,022.21 −18.50
36 4,066.90 4,022.56 44.34
37 3,934.52 4,003.62 −69.10
38 4,041.55 4,038.95 2.59
39 4,029.50 4,062.03 −32.54
40 3,991.01 4,031.85 −40.84
SD* 49.74 32.93  
RSD※*    46.75
P-value    0.16
  1. *SD, Standard deviation; RSD, residual standard deviation.