Another excellent overview of the wider problem that's behind the usage of antibiotics in that scale can be found in the Meat Atlas, published by Heinrich Böll Foundation.

https://eu.boell.org/sites/default/files/2021-09/MeatAtlas20...

It delivers an excellent compilation of the issues at play that will keep the problem going. As long as there's no change in policies, consumer behavior and/or some mad disease that brings down the meat industry, it's going to keep continued.