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Table 4 Least squares means for growth performance of pigs fed diets containing different concentrations of standardized total tract digestible (STTD) Ca and STTD P for 21 da

From: Influence of the concentration of dietary digestible calcium on growth performance, bone mineralization, plasma calcium, and abundance of genes involved in intestinal absorption of calcium in pigs from 11 to 22 kg fed diets with different concentrations of digestible phosphorus

Item STTD Ca, %
0.14 0.29 0.44 0.59 0.74
Initial BW, kgb
 0.16% STTD P 11.13 10.98 11.21 11.06 11.02
 0.33% STTD P 10.89 10.98 11.01 11.17 11.09
 0.42% STTD P 11.11 11.12 11.12 11.14 10.95
 0.50% STTD P 11.15 11.09 11.05 11.19 11.08
Final BW, kgc
 0.16% STTD P 20.87 20.91 20.77 19.36 18.11
 0.33% STTD P 22.07 23.78 23.79 23.47 22.61
 0.42% STTD P 20.69 24.50 23.67 24.00 23.47
 0.50% STTD P 20.04 22.80 23.71 24.27 24.01
ADG, gd
 0.16% STTD P 465 473 455 395 337
 0.33% STTD P 530 609 621 586 548
 0.42% STTD P 451 637 598 612 596
 0.50% STTD P 413 557 599 622 615
ADFI, ge
 0.16% STTD P 848 849 864 808 791
 0.33% STTD P 871 948 931 933 914
 0.42% STTD P 763 978 895 958 928
 0.50% STTD P 752 869 925 940 936
G:F, g:gf
 0.16% STTD P 0.549 0.556 0.527 0.488 0.425
 0.33% STTD P 0.610 0.645 0.656 0.628 0.601
 0.42% STTD P 0.592 0.654 0.671 0.640 0.643
 0.50% STTD P 0.549 0.643 0.649 0.663 0.658
  1. aData are least squares means of 8 observations with the exception of diet 0.44% STTD Ca and 0.33% STTD P for ADG (n = 7)
  2. bStandard error of the within treatment least squares means = 0.51
  3. cStandard error of the within treatment least squares means = 0.80
  4. dStandard error of the within treatment least squares means = 0.02
  5. eStandard error of the within treatment least squares means = 0.04
  6. fStandard error of the within treatment least squares means = 0.01