Earlier quoted context omitted.
I don’t think you need to invoke concentration camps here, true as it may be in some cases. They use antibiotics to make them grow faster. That’s half the reason.
What's the difference then? Piling up living beings in awful conditions to kill them in the most cost-effective way is pretty much the definition of a concentration camp. And making them grow faster than they're supposed to at the expense of everything isn't very nice either.
> During a visit to Minsk in August 1941, Himmler witnessed an Einsatzgruppen mass execution first-hand and concluded that shooting Jews was too stressful for his men. By November he made arrangements for any SS men suffering ill health from having participated in executions to be provided with rest and mental health care. He also decided a transition should be made to gassing the victims, especially the women and children, and ordered the recruitment of expendable native auxiliaries who could assist with the murders. Gas vans, which had been used previously to kill mental patients, began to see service by all four main Einsatzgruppen from 1942. However, the gas vans were not popular with the Einsatzkommandos, because removing the dead bodies from the van and burying them was a horrible ordeal. Prisoners or auxiliaries were often assigned to do this task so as to spare the SS men the trauma.
https://en.wikipedia.org/wiki/Einsatzgruppen#Transition_to_g...