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Table 4 Treatment effects on growth performance and carcass weight of feedlot steers

From: Influence of ruminal degradable intake protein restriction on characteristics of digestion and growth performance of feedlot cattle during the late finishing phase

  Urea fermentation potential P- value  
Item 0 0.6 1.2 Linear Quadratic SEM
Days on test 40 40 40    
Pen replicates 5 5 5    
Live weight (kg)1       
Initial 469 465 470 0.83 0.28 3.22
Final 510 502 501 0.17 0.54 4.40
DMI (kg/d) 7.32 6.99 6.94 0.32 0.67 0.26
ADG (kg/d) 1.04 0.93 0.78 <0.01 0.71 0.06
G:F 0.142 0.134 0.112 <0.01 0.32 0.005
Diet NE (Mcal/kg)       
Maintenance 2.37 2.33 2.18 0.03 0.37 0.21
Gain 1.67 1.64 1.50 0.03 0.37 0.21
Observed/expected NE       
Maintenance 1.07 1.05 0.98 0.03 0.37 0.02
Gain 1.09 1.07 0.98 0.03 0.37 0.03
HCW (kg) 336 331 330 0.16 0.67 3.02
Dressing (%) 65.9 66.0 65.8 0.80 0.67 0.23
  1. 1Initial and final weights were reduced 4% to adjust for digestive tract fill.