Treatment is applied only when there is clear evidence that it will improve fish health. “This is a major milestone for Scottish salmon farmers. Specifically, 7.1 percent of seawater farms and 10.6 percent of freshwater farms used antibiotics, meaning the vast majority of farms used none at all. Scottish salmon farmers continue to publish antibiotic use data covering 100 percent of the sector. “We continue to work to reduce use as low as possible while ensuring our fish stay healthy, giving consumers full confidence in Scottish salmon.