In ovo injection of nano‐selenium spheres mitigates the hatchability, histopathology image and immune response of hatched chicks

In ovo injection of nano‐selenium (Se) produced by lactic acid bacteria (LAB–nano‐Se) was investigated on the hatchability, immune responses and the histopathological alterations in hatched chicks. The eggs (18 day age) were injected with 0.5 ml of 0.9% NaCl (normal saline, NS), while the control group was kept without injection. In the third, fourth and fifth groups, the eggs were injected with 0.5 ml of NS and LAB–nano‐Se at 10, 20 and 30...