Effect of in ovo lactoferrin injection in Fayoumi chicken eggs on immune response and some physiological parameters in posthatch chicks.

The effects of in ovo lactoferrin (Lf) injection on some physiological parameters and immune response of posthatch chicks were investigated. Live embryonated Fayoumi chicken eggs (n = 600) were randomly allocated into four groups. The first group as a control was noninjected eggs, the second group was only injected with 0.