تاثير عصاره الكلي دو گياه دارويي سير و آويشن بر عملكرد و غلظت ليپيدهاي خون جوجه هاي گوشتي

Effects of alcoholic extract of two herbs (garlic and thymus) on the performance and blood lipids of broiler chickens

This experiment was conducted to evaluate the effect of two herbs (garlic and thymus) on the performance, blood lipids and hematocrit value of broiler chickens. 800 1 day-old Cobb 500 broiler chicks were reared in floor pens until 42 d of age. A basal standard diet was formulated based on NRC (1994) recommendation for starter (0-2Id) and finisher (22-42d) periods and also supplemented with 0.3 and 0.6 percent of thymus and garlic extracts. Each of 5 dietary treatments was fed to 4 replicate groups of 40 mixed sex chicks. Resultant data were analyzed in a completely randomized design. Results indicated that supplementing of herbs extracts (thymus and garlic) to starter and finisher diets had not any significant effect on body weight gain, feed intake and feed conversion ratio. Supplementing of thymus and garlic extracts and sex had no significant effect on blood lipids concentration and hematocrit value. However, the concentration of blood HDL was relatively lower in female rather than male birds. In the condition of this experiment, supplementing of mention alcoholic extracts had no significant effect on the performance and blood parameters of broiler chicks.