Antibiotic-free swine production, is it possible?

In the 1940s, antibiotics used as a therapeutic agent for humans became common. Around the same period, sick farm animals were treated with antibiotics, and besides the curative action, a secondary effect emerged – antibiotics could prevent disease and promote growth. Since then and until recently, antibiotics used as growth promoters (AGP) and prophylactic were considered essential for livestock production. In the 1980s, warnings about Antibiotic Microbial Resistance (AMR) began to attract