This study was conducted in the fields of Babylon Governorate, and the field experiment lasted for 112 days. The aim is to know the effect of Garviola leaves on some physiological characteristics of blood for old laying hens. (105) White Lohmann laying hens were raised at 65 weeks of age, 66-69 weeks of age, 70-73 weeks of age, 74- 77 weeks of age, and 78- 81 weeks of age. 21 groups were distributed into 7 experimental treatments consisting of 15 birds. The treatment included three replicates containing five birds. T1: control without addition. (T2:15ml, T3:30ml, T4:45ml/liter of water of aqueous extract of Graviola leaves at a concentration of 1%). (T5:15ml. T6:30 ml and T7:45 ml/liter of water of alcoholic extract of Graviola leaves at a concentration of 1%). The results of the experiment showed a significant improvement (p≤0.05) in the concentration of total protein in treatments (4, 6, and 7) and albumin concentration in the fourth period. A decrease in uric acid for treatments (3, 4, 5, 6, and 7) and a reduction in the addition coefficients in the enzyme AST and ALT, and a significant improvement for two treatments (4 and 7) compared to the first control. We concluded that adding Garviola extracts improved blood parameters (protein, albumin, uric acid, AST, ALT, and ALP).
Keywords | Aqueous extract, Alcoholic extract, Biochemical parameters, Blood characteristics, Graviola, Laying Hens