تأثير إضافة أوراق نبات الزعتر (Thymus vulgaris) المطحونة إلى العليقة في بعض الصفات الدموية لفروج اللحم

Abstract

This study was conducted to investigate the influence of adding (Thymus vulgaris ) leaves powder to the diet on certain blood traits of broiler chickens during a period from 15-12-2009 to 10-2-2010 . A total of 300 broiler chicks, one day old were used and randomly allocated to four treatment groups (3 replicates per group; 25 chicks each). (Thymus vulgaris) leaves powder was supplemented to the diet of broiler chickens at the levels of 0 (control group, T1), 500 mg/Kg of diet (T2), 750 mg/Kg of diet (T3) and 1000 mg/Kg of diet (T4). These treatments were applied during the entire period of experiment (8 weeks). Blood traits included in this study were red and white blood cell counts, hematocrit, hemoglobin concentration, differential leucocyte count. Results revealed that supplementation to the diet of broiler chickens with (Thymus vulgaris ) leaves powder (T2, T3 and T4) resulted in significant (p < 0.01) increase in red and white blood cell counts, hematocrit and hemoglobin concentration and significant decrease in heterophil to lymphocyte ratio. Furthermore, the improvement in blood characteristics included in the president study was associated with the increasing of concentration of (Thymus vulgaris) leaves powder to the diet since the best means of studied blood traits were recorded for the high concentration of (Thymus vulgaris) leaves powder to the diet (T4) in comparison with the other two treatments of (Thymus vulgaris) leaves powder to the diet (T2 and T3).