This topic’s huge, and there’s always a risk of trying to oversimplify the problem or solutions.
However, some solutions for some issues might be fairly straightforward. Whether it’s on a farm, in a hospital or in a doctors office, there are situations where I think it’s widely accepted we don’t need to use antibiotics, yet for various reasons they still get used. Getting over those barriers sometimes requires a combination of medicine, behavioural science, communications, psychology, economics and a range of other fields. Sometimes, though, the answer seems fairly simple.
A paper published in The Veterinary Journal showed how use of a simple treatment algorithm designed to be used by farmers results in an 80% reduction in antibiotic use in diarrheic dairy calves, with no impact on calf health.
That’s just one condition in one species, but it shows that there are some “low hanging fruit” that we might be able to pick.
Reference: DE Gomez, LG Arroyo, Z Poljak, L Viel, JS Weese. Implementation of an algorithm for selection of antimicrobial therapy for diarrhoeic calves: impact on antimicrobial treatment rates, health and faecal microbiota.