Considering that in practice the use of these drugs constitutes a clinical decision, his should be based on the competence and experience of the Veterinariansince after making a diagnosis, appropriate therapy must be started as soon as possible.

In the particular case of antimicrobials, the responsible and prudent use of these drugs also prevents or reduces the emergence of bacterial resistance. Bacterial resistance is a cause of great concern worldwide, since many of these drugs have lost their clinical efficacyprolonging illnesses and/or increasing mortality in various production systems.

On the other hand, the emergence of multi-resistant bacteria to different groups of antimicrobials has reduced the currently available therapeutic arsenal, calling into question the availability of effective and safe therapeutic options in the future.

It should also be kept in mind that in salmon farming, most antimicrobial therapies are delivered through the feed (medicated feed), making it impossible to prevent a percentage of this from being eliminated into the aquatic environment (environmental impact)In this regard, it should be noted that at the end of 2002, the national salmon farming sector signed an Clean Production Agreement (CPA), whose objective is to seek a balance between economic growth and environmental protection. Likewise, in recent years, three international certifications have emerged that, among other measures, ensure environmental protection. Among these is the ASC (Aquaculture Stewardship Council) certification, which is lost after three antimicrobial treatments are applied during the fish production cycle..

The problem presented represents an opportunity for Favet, through the Diploma in Good Practices in the Use of Drugs in Salmon Farming, leads the training of professionals with knowledge in this area.