The effect of duration of thermal manipulation during broiler chick embryogenesis on body weight and body temperature of post-hatched chicks

Background: The objectives of this study were to (1) simultaneously estimate genetic parameters for BW, feed intake (FI), and body weight gain (Gain) during a FI test in

The goodness-of-fit of Willham, Falconer and integrated models were tested to simulated data based on an integrated Falconer-Willham model, with a direct and. maternal

The genetic correlations of weight gain at different periods of age for males, females, and the combined sexes estimated from the sire, dam, and sire-dam components

Estimates of r pc were larger with genotype-based than with pedigree-based models, but the estimate of addi- tive genetic covariance was often smaller with genotype- based models

By challenging the model with different inputs, the animal response in terms of changes in body weight and feed conversion can be understood more by studying the shift

Acclimation of piglets to high temperatures was associated with decreases in plasma thyroid hormones and IGF-I, whereas leptin serum concentrations tended to be decreased at

during compensatory growth; BWG, body weight gain (g); FI, feed intake total (g); FCR, feed 566. conversion ration; and RFI, residual

Animal Production, Poultry production, Central University of venezuela, Maracay, Venezuela, 2 URD, Systemes d’Elevage, CIRAD, Montpellier, France. XIIIth European Poultry