F. Hajiazizi

[ 1 ] - Effects of rosemary essential oils and zinc on performance, egg quality traits, and some serum biochemical metabolites of laying hens

This study was conducted to evaluate the effects of dietary supplement-ation of rosemary essential oils (REO) and zinc (as zinc sulfate) on performance, egg quality traits, and some serum biochemical metabolites of laying hens. A total of 144 44-weeks-old Lohmann LSL-Lite laying hens were randomly allocated into four treatments, each comprising six replicates of six birds. The first group was s...