The Effect of Phyto-chemical Compounds of Olive Leaf on Biochemical Indicators of Broiler Blood

Objective: today, the possible side effects of chemical medicines in the treatment of various diseases, on the one hand and the positive effects of herbal medicines and reducing the negative effects of their use on the other hand, have led researchers to identify, analyze, purify and use beneficial compounds in such plants. olive leaf extract, due to its beneficial chemical compounds, has been used as an effective herbal medicine in the treatment of various human and animal diseases. methods: in this study, the effect of olive leaf nutrition in different weeks of breeding period on performance and metabolic abnormalities was investigated; using 336 male arian strain chickens in a completely randomized format with six treatments, four replications, and14 birds in each replication for of broiler blood, such as triglycerides, cholesterol, high-density lipoproteins (hdl), low-density lipoproteins (ldl), total protein, and blood glucose based on the aoao 1990 method, were assessed. results: the mean difference of blood metabolites such as triglyceride and hdl among different treatments were not significant (p˃0.05), however, for ldl and blood cholesterol levels this difference was significant (p <0.05). regarding the anti-diabetic and hypoglycemic function of olive leaf extract in regulating blood glucose and increasing serum insulin, as well as the average total protein, the results showed no significant difference. conclusions: as a conclusion, the results of this research showed that the use of 1% olive leaves in broiler chickens' diet does not have a negative effect on functional traits and live weight. therefore, present results emphasize that broiler chickens can be given olive leaf extract at 1%, while future studies conducting onfarm conditions may pronounce its impact on growth performance. olive leaf can be used in diets of broilers and further studies on-farm conditions may justify its impact on growth performance.