Page 15 of articles about antimicrobial
Canada: Responsible use of Medically Important Antimicrobials in animals
Abundance and diversity of the faecal resistome in slaughter pigs and broilers in nine European countries
Countries step up to tackle antimicrobial resistance

Certification in antibiotic-free (ABF) production from weaning to slaughter in pigs
This article describes a real project for the production and marketing of pigs that are given no antibiotics after weaning