I am a security dog handler. I need to build up confidence in my Rott. Do you think I can do that by giving him a live chicken to kill?

I am a security dog handler now. I have a Rotty. Could you give me your thoughts on giving him a live chicken for a kill to increase his prey drive and a confidence builder. I'll let him taste the blood. We are training him on the sleeve. He is 2 yrs. and 4 months old. He is fighting well on the sleeve and with whip work and gun work, we just need to build his confidence up.