From piglet to finisher without antibiotics

Among the numerous professionals involved in livestock production nowadays, the topic is always the same: How to sustain animal production without antibiotics? How to reduce the need for antibiotics? Which are the alternatives? Antibiotics as growth promoters or prophylactics in healthy animals need to be restricted and antibiotics as curatives should only be administered on the basis of disease diagnosis and prescription. This leads to a major question: How can intensive animal production ens