DEMAND the end of CRUEL and INHUMANE Slaughtering ....with this alternative

We all know how cruel and inhumane the slaughtering of all animals is to feed humans meat...
electic prodding of cattle, chickens in filth and inhuamne conditions, turkeys slashed to death, pigs beaten to face their ultimate cruel death..........
I have an alternative...WHY can't these animals be euthanized somehow...we all know the slaughtering will continue for decades to come if we don't come up with some kind of solution. We have to try...to all the vets and scientists... PLEASE HELP US to help these poor animals suffering.