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Table 1 Growth performance of weaned pigs fed diets containing Peptiva formulated at 100 (PEP) or 90% (PEP-10) of amino acid requirements (NRC (2012)1

From: Dietary inclusion of Peptiva, a peptide-based feed additive, can accelerate the maturation of the fecal bacterial microbiome in weaned pigs

  Control PEP PEP-10 SEM P-value
Body weight, kg
 d0 5.9 5.8 5.7 0.1 0.602
 d6 6.2 6.2 6.2 0.2 0.948
 d13 7.8 7.7 7.6 0.1 0.267
 d20 10.4 10.2 9.9 0.3 0.396
 d27 12.6a 12.4ab 12.1b 0.2 0.067
 d34 16.2a 15.8ab 15.2b 0.2 0.011
 d41 20.8a 20.5ab 19.4b 0.3 0.008
Average daily gain, kg/d
 d0 – d7 0.063 0.054 0.062 0.024 0.958
 d8 – d21 0.256 0.253 0.234 0.014 0.476
 d22 – d42 0.471 0.469 0.440 0.019 0.415
Average daily feed intake, kg/d
 d0 – d7 0.108 0.096 0.097 0.014 0.797
 d8 – d21 0.309 0.300 0.294 0.022 0.892
 d22 – d42 0.659a 0.614b 0.633ab 0.012 0.034
Gain:feed, kg:kg
 d0 – d7 0.54 0.52 0.60 0.16 0.928
 d8 – d21 0.81 0.83 0.76 0.05 0.528
 d22 – d42 0.71 0.78 0.70 0.03 0.180
Pigs removed, #/pen 2.4 1.9 2.0 0.42 0.700
Total removed, # 36 35 26   
Total started, # 360 383 360   
Removal, % 10 9.1 7.2   
Pen coefficient of variation
 d0 0.230 0.199 0.226 0.011 0.083
 d21 0.248 0.247 0.249 0.021 0.999
 d42 0.240 0.242 0.269 0.021 0.545
  1. 1Experimental diets were provided as part of a 3-phase nursery pig feeding program (Phase 1: 0-7d; Phase 2: 8-21d; Phase 3: 22-42d). Peptiva was included at 1.0, 0.5, and 0.3%, respectively). A total of 46 pens of 24 pigs/pen were included in the analysis (n = 16, 15, and 15 pens for CON, PEP, and PEP-10, respectively)
  2. Means in the same row with different superscripts are significantly different as determined by the Tukey honest significant difference test