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Table 4 Effect of dietary ME level on performance of growing-finishing pigs (Experiments 1, 2 and 3)1

From: Effects of the standardized ileal digestible lysine to metabolizable energy ratio on performance and carcass characteristics of growing-finishing pigs

Item ME level, Mcal/kg SEM P value
       ANOVA Linear Quadratic
Experiment 1 (30 to 50 kg) 3.1 3.2 3.3 3.4     
   Weight gain, kg/d 0.64a 0.68b 0.67b 0.67b 0.01 0.02 0.09 0.19
   Feed intake, kg/d 2.10a 1.92ab 1.79b 1.70b 0.07 0.01 0.43 0.01
   Feed efficiency 0.31a 0.36b 0.38b 0.40b 0.02 < 0.01 0.95 < 0.01
Experiment 2 (52 to 70 kg) 3.1 3.2 3.3 3.4     
   Weight gain, kg/d 0.74 0.79 0.79 0.76 0.02 0.08 0.57 0.31
   Feed intake, kg/d 2.75a 2.57ab 2.51ab 2.33b 0.09 0.04 0.06 0.18
   Feed efficiency 0.27a 0.31ab 0.32b 0.33b 0.01 0.04 0.01 0.03
Experiment 3 (81 to 104 kg) 3.05 3.15 3.25 3.35     
   Weight gain, kg/d 0.78 0.78 0.78 0.80 0.01 0.53 0.20 0.39
   Feed intake, kg/d 3.38a 3.27a 3.20a 2.97b 0.06 < 0.01 0.02 0.06
   Feed efficiency 0.23a 0.24a 0.25a 0.27b 0.01 < 0.01 < 0.01 0.03
  1. a, bMeans in the same row with different superscripts are significantly different (P < 0.05).
  2. 1Value represent means of six pens with 11 to 15 pigs per pen during a 28-d period.