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Table 4 P values for broiler live performance and dressed yields as affected by variation of diet branched-chain amino acids from 22 to 35 d fed to female and male Indian River broilers

From: Dietary branched-chain amino acid assessment in broilers from 22 to 35 days of age

  Live performanceb Dressed yieldsc
P valuesa BW gain, kg/bird Feed:Gain, kg/kg Mortality, % Carcass, % Breast, % Fat, %
Female broilers
Linear
 Val 0.894 0.924 0.685 0.023 0.503 0.317
 Ile 0.031 0.156 0.449 0.638 0.504 0.224
 Leu 0.386 0.786 0.958 0.029 0.358 0.706
Quadratic
 Val × Val 0.996 0.888 0.918 0.061 0.550 0.400
 Ile × Ile 0.074 0.697 0.918 0.512 0.929 0.224
 Leu × Leu 0.842 0.408 0.472 0.029 0.792 0.924
Interaction
 Ile × Val 0.990 0.459 0.277 0.848 0.053 0.371
 Leu × Val 0.648 0.340 0.786 0.055 0.088 0.660
 Leu × Ile 0.045 0.003 0.104 0.430 0.749 0.473
Male broilers
Linear
 Val 0.392 0.268 0.541 0.753 0.897 0.314
 Ile 0.156 0.309 0.836 0.540 0.842 0.067
 Leu 0.206 0.406 0.229 0.747 0.322 0.587
Quadratic
 Val × Val 0.537 0.112 0.116 0.878 0.727 0.157
 Ile × Ile 0.254 0.367 0.781 0.764 0.757 0.023
 Leu × Leu 0.559 0.742 0.229 0.959 0.359 0.119
Interaction
 Ile × Val 0.789 0.617 0.142 0.681 0.584 0.812
 Leu × Val 0.426 0.645 0.327 0.295 0.856 0.264
 Leu × Ile 0.256 0.113 0.806 0.073 0.505 0.352
  1. aLinear, quadratic, and interaction regression analyses parameters for predicted means were generated using the RSREG procedure of SAS. All parameters have a df of 1
  2. bLive performance represents: body weight gain in kg per bird from the 15 to 35 d period; feed:gain represents kg feed intake divided by BW gain for the 15 to 35 d period without the mass of birds that died; and mortality represents percentage birds that died from the 15 to 35 d period
  3. cDressed yields represents: hot carcass, total breast muscles, and abdominal fat relative to live body weight of processed birds