![]() Furthermore, supplementation of thyme downregulated the pro-inflammatory mediators and increased the expression of mucin2 mRNA in the jejunum of chickens. The lipid profile of the broilers was affected by thyme supplementation at 2 and 5 g/kg as represented by a significant decrease in serum cholesterol levels as well as low density lipoprotein levels, which is known to be associated with a corresponding increase in high-density lipoprotein ( P ˂ 0.001). ![]() The economic evaluation showed that birds fed on 8 g/kg thyme yielded the lowest net revenue and highest feed cost to produce 1 kg of live weight compared to the other treatments, while birds fed on 2 and 5 g/kg thyme did not differ significantly from values obtained for the controls. Results obtained clearly indicated that thyme supplementation of the diet, especially at 5 g/kg, resulted in a significant increase in body weight and caused the increased body weight gain and feed intake ( P ˂ 0.05) as well as augmented WBC and lymphocyte count and IgG and NO levels ( P ˂ 0.001). At 42 days of age, the chickens were weighed and euthanized, and then blood and tissue samples were collected for the purpose of analysis. One group received a basal diet (control) while the others received a basal diet supplemented with 2, 5, or 8 g/kg of thyme powder. A total of 120 1-day old chicks (Cobb 500) were divided into four groups on the basis of the diet. ![]() It was also our aim to evaluate the growth performance, blood biochemical and hematological profiles, and economic efficiency of the diet. ![]() This study was conducted in an attempt to evaluate the impact of thyme powder supplementation on broiler diets with respect to cytokine and mucin2 gene expressions. ![]()
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