Taking a life

I killed a chicken before breakfast this morning.

We where on morning chores and our group was on moving cows and looking after the broiler chickens which are in the brooder. They are on their eighth day at the farm and get fed five times a day.
While our group was in the brooder the group that was on laying hens came back with a weak hen which had a paralysis on one side of its body and could not move. Gustavo and Richard hat noticed it not moving on the days before and Richard said the two options where to kill it or to keep it in quarantine. The group decided on killing it given the slim chances of recovery and having killed a few chickens before I spontaneously volunteered for showing the others.