EFFECTIVENESS OF CERTAIN NATURAL FEED SUPPLEMENTS ON PRODUCTIVE PERFORMANCE, NUTRIENTS DIGESTION COEFFCIENT, CARCASS CHARACTERISTICS, AND SOME BLOOD PARAMETERS OF BROILER CHICKS SHORT TITLE: EFFECT OF NATURAL FEED ADDITIVES ON BROILER

This experiment was made to evaluate the effect of adding leaves powder of (Moringa olifera), fenugreek seeds (Trigonella foenum), dry yeast (Saccharomyces cerevisiae) and mixture (fenugreek + Moringa + yeast) on growth, carcass traits, nutrients digestibility, some blood constituents and economic efficiency of Sasso broiler chicks. A total number of 150 one day age broiler chicks (Sasso) were divided into 5 groups. Each one composed of 3 replicates (10 chicks each). The first group received a basal diet without any supplementations (control). Whereas, second, third, fourth and fifth groups received the control diet supplemented with 0.5% fenugreek seed powder (FSP), 0.5% moringa leaves powder (MLP), 0.5% dry yeast (DY) and 0.5 % mixture as (0.167% FSP + 0.167% MLP + 0.167 %DY). The obtained results showed that there were significant differences among treatments. The birds fed DY recorded improvement (P ˂0.01) in body weight, body gain, crude protein digestibility, dressing percentage, total serum protein, and economic efficiency compared with the birds fed the other feed additives as growth promoters.