Descripción: “...These results may explain some phenomena of pattern change on the surface of the skin of animals that exhibit characteristic spots. ...”

Descripción: “...At necropsy examination, fish inoculated with bacteria showed: hem- orrhages on the base of fins and internal organs, pale and mottled liver, increased abdominal fluid and blood-stained fluid in intestine, unlike control animals that did not show these lesions. Additionally, hepatome- galy was observed in experimental infected animals, even though there were not significance differences in the hepatosomatic index of these animals with respect to control. ...”