If one could train a chicken to pull or not pull a lever to save x amount of chicken lives, does it weigh on the conscience of the trainer that they’ve compelle

If one could train a chicken to pull or not pull a lever to save x amount of chicken lives, does it weigh on the conscience of the trainer that they’ve compelled a self-aware creature to kill one of its own kind? (I’m not asking this to refute your point, it’s well met, I just found the opportunity to poke at the imaginary ethical elephant too much to resist, and no I’m not proud of it-those were good hens)