Effects of cinnamon and rosemary oils on egg production, egg quality, hatchability traits and blood serum mineral contents in laying quails (Coturnix coturnix Japonica)

This study was carried out to evaluate the effects of cinnamon (CO), rosemary (RO) and a mixture (MO) of these plants oil on egg production, feed intake, feed conversion rate, external and internal egg quality, blood serum mineral contents and hatchability traits in different sex ratios of [1/3 and 1/5, (♂/♀)] in laying quails. A total of 192 quail were distributed into special cages (12 quails/per cage) including three experimental diets and control. The experiment was continued two months. At the end of the study, 12 birds from each group were slaughtered in order to collect blood samples. The levels of Cu, Co, Cr, Zn, Fe, K, Na and Mg in serum were determined. The highest egg weight was found in RO group, while it was lowest in MO group (P