The effect of garlic powder (Allium sativum) on performance, blood parameters and egg quality of Japanese quail

This experiment was conducted to evaluate the effect of dietary garlic powder on performance, blood and egg parameters of Japanese quail, in 8-week old with 3 treatments (diets) and 4 replicates with 20 quail per each replicate for 9 weeks. Treatments including: control (basal diet without garlic powder), treatment 2 (2.5 percent of garlic powder) and treatment 3 (5 percent of garlic powder). Initial and final body weight, feed intake, egg production, eggshell thickness and egg weight were not affected by treatments (p>0.05). Yolk cholesterol, blood triglycerides and Uric acid were affected significantly and was significantly lower in treatment 3 than control diet (p<0.05). HDL in treatment of 3 was significantly higher than the other treatments (p>0.05). The results of this study demonstrated that adding 5% garlic powder to the laying quail diets resulted in improve blood parameters and cholesterol-reducing effect in egg yolk without adverse effects on performance and egg traits.