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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
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Journal of Animal Science and Biotechnology

ISSN: 2049-1891