Big companies like McDonald's are finally being pushed, by public concerns, to reduce antibiotics in beef.
"The vast majority of these drugs are routinely distributed en masse in feed or water - often to animals that are not sick to help them survive the crowded and unsanitary conditions on industrial farms.
Are you aware that American beef sold in Japan? These are drugs? Did you ever wonder why?
https://japantoday.com/category/business/mcdonald's-unveils-plan-for-cutting-antibiotics-in-beef
What does en masse mean?
https://dictionary.cambridge.org/dictionary/english/en-masse
What does unsanitary mean?
https://dictionary.cambridge.org/dictionary/english/unsanitary