Effect of Mash and Pellet Diets with Different Levels of Protein and Energy on Broiler Performance in Finisher Period

This study was investigating to examine the effect of mash and pellet diets with normal and low protein and energy levels on broilers performance in finisher period. four hundred eighty unsexed broiler chicks fed two type of (mash and pellet) diet, two protein levels (21% and 19% CP), and two energy levels (3200 and 3000 Kcal/Kg ME) in period 24 to 42 days of age. The weight gain, feed intake, feed per gain, and mortality were examined during the experimental periods (24 -42 d). after sloughed traits were measured at the end of the study (42 days) including gizzard percentage, dressing percentage, abdominal fat percentage and small intestine and their parts percentage. There were significant (P≤0.05) interactions for all parameters were examined except feed per gain, the pellet diets significantly (P≤0.05) improve feed intake, body weight, weight gain and dressing percentage on the other hand pellet diet significantly (P ≤0.05), increase mortality, mash diet influence significantly (P≤0.05) weight of gizzard and small intestine and their parts. The normal protein levels significantly (P≤0.05) increased weight gain, body weight and feed intake, the energy levels did not affect statistically of all parameter.