Abstract

This experiment was conducted in the poultry field of the Department of Animal
Production at the College of Agriculture, University of Kirkuk, the experiment aimed
to study the effect of the fodder addition of Moringa oleifera leaf powder and probiotics
on the productive characteristics of broilers. 288 chicks of 308 Ross broilers (unsexed)
were bred. At the age of one day and for a period of 42 days, the average weight was
41.9 g per chick, where the chicks were randomly distributed into 6 treatments and 4
replicates per treatment (12 birds/repeat) and the experimental treatments were as
follows: - The first treatment: T1 control treatment, the second treatment T2: control
diet + add probiotic at a concentration of 3 g/kg feed, the third treatment T3: the addition
of Moringa oleifera leaf powder at a concentration of 2.5 g/kg feed, the fourth treatment
T4: the addition of Moringa oleifera leaf powder at a concentration of 5 g/kg feed, the
fifth treatment T5: the addition of Moringa oleifera leaf powder at a concentration of
2.5 g/kg feed + add probiotic at a concentration of 3 g/kg feed and the sixth treatment
T6: Add Moringa oleifera leaf powder at a concentration of 5 g/kg feed + add probiotic
at a concentration of 3 g/kg feed. The results of the statistical analysis showed a
significant superiority (P≤0.05) in favor of the fifth treatment over the rest of the
treatments in the average live body weight, the total weight gain rate, the total feed
consumption rate, and a significant decrease for the sixth treatment compared to the
rest of the treatments in the live body weight rate and the weight gain rate. The
consumption of total feed significantly in the fourth and sixth treatment compared to
the rest of the treatments, and a significant improvement was noted in the feed
conversion factor in the fourth treatment compared to the rest of the treatments in the
sixth week, and there was a significant superiority in favor of the third treatment over
the rest of the treatments in the total feed conversion coefficient, and a significant
improvement was noted In the total fodder conversion factor in the fourth and fifth
treatment compared to the rest of the treatments, and the fifth treatment recorded the
best productivity index compared to the rest of the treatments, while the productivity
index decreased significantly in the third and sixth treatment compared to the rest of
the treatments. We conclude from this study that the use of 2.5 g/kg feed of Moringa
oleifera leaf powder with probiotic in broiler diets led to an improvement in the
productive characteristics and economic index of broiler