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. 2022 Aug 11;100(10):skac255. doi: 10.1093/jas/skac255

Table 3.

Growth performance and fecal score of nursery pigs fed diets with supplementation of soy protein concentrate (SPC) replacing animal protein supplements

Item SPC replacement, %1 SEM P value
0 33 66 100 Linear Quad. SPC 0% vs. others
BW, kg
 day 0 6.3 6.4 6.4 6.4 0.4 0.807 0.964 0.854
 day 10 7.9 7.8 7.4 6.9 0.4 0.015 0.568 0.101
 day 22 12.5 12.6 11.6 10.3 0.9 0.003 0.218 0.098
 day 35 21.4 20.9 19.3 17.3 1.2 0.001 0.376 0.021
ADG, g/d
 Phase 12 159 139 106 51 27 0.007 0.522 0.065
 Phase 23 384 406 345 286 44 0.009 0.160 0.255
 Phase 34 684 633 596 535 38 0.006 0.888 0.029
 Overall 431 414 370 312 27 0.001 0.379 0.020
ADFI, g/d
 Phase 1 211 197 180 126 24 0.016 0.396 0.128
 Phase 2 498 498 458 386 50 0.023 0.317 0.216
 Phase 3 1,001 912 874 798 55 0.003 0.887 0.012
 Overall 603 566 533 465 39 0.002 0.585 0.020
G:F
 Phase 1 0.72 0.68 0.67 0.52 0.09 0.042 0.357 0.192
 Phase 2 0.78 0.81 0.77 0.73 0.04 0.318 0.378 0.904
 Phase 3 0.68 0.70 0.68 0.67 0.02 0.534 0.615 0.927
 Overall 0.72 0.73 0.69 0.66 0.02 0.013 0.188 0.332
Fecal score
 Phase 1 3.3 3.5 3.7 3.6 0.16 0.226 0.349 0.161
 Phase 2 3.2 3.1 3.3 3.3 0.07 0.155 0.707 0.552
 Phase 3 3.0 3.0 3.0 3.1 0.02 0.399 0.122 0.639

Dietary treatments were supplemented with soy protein concentrate (X-Soy 200, CJ Selecta, MG, Brazil) at four levels replacing animal protein supplements including fish meal, poultry meal, and blood plasma (N = 32 total, n = 8 for each replacement level).

Phase 1, from day 0 to day 10.

Phase 2, from day 10 to day 22.

Phase 3, from day 22 to day 35.