The effect of adding local myrtle leaves powder and industrial antioxidant Butylated Hydroxy Toluene to laying hens feeding on some biochemical characteristics and special enzymes against oxidative stress in laying hens blood

Abstract

This experiment conducted in the poultry field "Al Sayada" affiliated to the Department of Animal Production at the College of Agriculture in the University of Kirkuk for the period  20/2/2022 to 12/6/2022 for 112 days (16 weeks), 200 laying hens, type  "LOHMANN BROWN", at the age of 54 weeks, were randomly distributed to 10 nutritional treatments, with 5 replications for each  treatment, and one repetition included 4 birds . The treatments were represented as follows: first treatment: control(without any adds), second treatment: first treatment + 1.0% myrtle leaves powder, third treatment: first treatment + 2.0% myrtle leaves powder, fourth treatment: first treatment + 0.05% Butylated hydroxytoluene, fifth treatment: The second transaction +0.05% Butylated hydroxytoluene, the sixth transaction: the third transaction +0.05% Butylated hydroxytoluene. It is clear from the statistical analysis of the study that there is a significant decrease (P≤0.05) in the levels of cholesterol, total protein and globulin for the addition treatments compared with the control treatment (without any addition) and an improvement in the levels of glucose, high-density lipoprotein, low-density lipoprotein and albumin, as well as an improvement in the antioxidants Malondialdehyde  and Glutathione  In blood serum, it can be concluded that the addition of local myrtle leaves powder at rates of 1% and 2% with (BHT) at 0.05% enhanced the improvement of biochemical properties and antioxidant enzymes in serum of laying hens.

Keywords

• myrtle leaves,,
• ,،؛bht,,
• ,،؛laying hens,,
• ,،؛biochemical characteristics,,
• ,،؛oxidative enzymes