Effect of Feed Form, Corn Particle Size, and Extrusion of Corn on Broiler Performance

The pelleting and extrusion processes use both thermal mechanical energies to alter the crystalline structure of starch granule, which makes it more digestible than raw starch. particle size ground corn in diet also affects rate at gelatinization occurs process. There is limited research on broiler performance when feeding diets that contain different sizes prior extrusion. objective this study was determine effect feed form, growth 21-d-old chicks. To type performance, treatments were arranged a 2 × 3 factorial (raw extruded corn) (400, 800, 1200 μm). no interaction (P > 0.742) between d 21 BW, ADFI, or conversion ratio (FCR). Broilers fed had greater < 0.001) BW ADFI compared those diets. evidence difference 0.081) broilers three sizes. with increasing increased (linear, P = 0.015) FCR. an 0.039) relative gizzard pancreas weights broilers. effects form weight, (mash crumble feed) (400 800 0.180) weight. mash 0.189) FCR containing 400 μm regardless form. as crumbled In addition, weight 0.002) for versus corn, while there Therefore, amount gelatinized by replacing starter did not improve performance. Increasing led improved development.