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Table 2 Effects of dietary treatments on growth performance (gr/day) of broilers

From: Effects of feed form and feed particle size with dietary L- threonine supplementation on performance, carcass characteristics and blood biochemical parameters of broiler chickens

Treatment Weight gain Feed intake FCR1
  1-21 21-42 1-42 1-21 21-42 1-42 1-21 21-42 1-42
Feed form          
  Mash 56.7b 66.0 61.4b 91.7b 121.9b 106.8b 1.61 1.86 1.74
  Pellet 61.5a 70.4 65.9a 101.8a 131.8a 116.7a 1.65 1.89 1.77
Feed size          
  Course 59.4 66.7 63.1 97.5 127.2 112.0 1.64 1.91 1.78
  Fine 58.8 69.6 64.2 95.9 126.5 111.6 1.63 1.83 1.73
L-threonine          
  + 60.3a 66.9 63.6 97.3 124.6b 110.9 1.61 1.88 1.75
  - 57.9b 69.5 63.7 96.2 129.2a 112.7 1.66 1.86 1.76
  SEM 0.69 1.79 0.89 0.61 1.36 0.90 0.02 0.04 0.02
Interaction effects
  Probability value
A × B 0.67 0.93 0.94 0.20 0.71 0.86 0.78 0.87 0.93
A × C 0.56 0.10 0.15 0.01 0.57 0.16 0.34 0.03 0.01
B × C 0.24 0.17 0.35 0.17 0.71 0.83 0.60 0.20 0.25
A × B × C 0.25 0.10 0.04 0.69 0.66 0.63 0.34 0.09 0.03
  1. a-bMeans without a common superscripts in per column are significantly different (P < 0.05).
  2. 1FCR: Feed conversion ratio.
  3. A: feed form; B: feed size; C: L-threonine.