EVALUATION OF THE EFFECTIVENESS OF ADDING DIFFERENT CONCENTRATIONS OF LEAVES ALCOHOLIC EXTRACT OF THE LOCAL SILYBUM PLANT ( SILYBUM MARIANUM ) TO DRINKING WATER ON SOME BIOCHEMICAL CHARACTERISTICS OF BROILER ROSS 308

This experiment was conducted in the fields of Al-Anwar Poultry Company in Babylon Governorate for the period from 18/2/2023 to 24/3/2023 The study aimed to evaluation of the effectiveness of adding different concentrations of leaves alcoholic extract of the local silybum plant ( Silybum marianum ) to Drinking Water on Some Biochemical Characteristics of Broiler, where 300 unsexed Ross 308 broilers equipped with a hatchery were used in the experiment. It was randomly distributed to 15) cages ) with 5 experimental treatments for each 60 bird treatment and each treatment included three replicates per 20 birds. The treatments of the experiment were as follows: the first treatment: a control group free of any addition, the second treatment: the addition of 10 ml of alcoholic extract to the leaves of the Silybum marianum plant / liter of drinking water at a concentration of 0.5%, the third treatment: the addition of 10 ml of alcoholic extract to the leaves of the Silybum marianum plant / liter of drinking water at a concentration of 1%, the fourth treatment: the addition of 10 ml of alcoholic extract to the leaves of the Silybum marianum plant / liter of drinking water at a concentration of 2%, the fifth treatment: Add 10 ml of alcoholic extract of the leaves of the Silybum marianum plant / liter of drinking water at a concentration of 3%. The results of the experiment showed a significant improvement (P≤0.05) for the fifth treatment in the concentration of total protein and albumin compared to the other experimental treatments, but with regard to the concentration of globulin and glucose, no significant differences were recorded between all treatments, while a significant decrease (P≤0.05) is noted in the concentration of the enzyme (Alanine Aminotransferase) ALT for the third, fourth and fifth treatments compared to the first treatment (control), and the treatments of adding alcoholic extract to the third, fourth and fifth leaves of the Silybum marianum plant showed a significant decrease (p≤0.05) in the level of As for the concentration of triglycerides, the second, third, fourth and fifth treatments recorded a significant decrease (p≤0.05) compared to the first treatment (control), as well as the third, fourth and fifth treatments recorded an increase in the concentration of high-density lipoproteins, and in return recorded a significant decrease (p≤0.05) in the concentration of low-density lipoproteins in bird blood serum compared to the first treatment (control).