Low temperature stress in a cultured fish (Piaractus mesopotamicus) fed with Pyropia columbina red seaweed-supplemented diet

This study aimed to analyze the cold stress effects (in terms of hematology, energy reserves, and oxidative stress) in Piaractus mesopotamicus (pacú) their mitigation by a Pyropia columbina red seaweed-supplemented diet. For this purpose, juvenile fish were fed with control (CD) or diet (RD) for 60 days, then, animals exposed low temperature (14 °C) (24 24 h. The shock generated an increase hemoglobin levels both diets. In CD-fed fish, plasmatic triglycerides, cholesterol, hepatic glycogen decreased after thermal shock; meanwhile, RD showed proteins, but increased cholesterol glycogen. Regarding stress, antioxidant enzymes augmented activity liver, intestine, gills; lipid damage was observed liver intestine 14 °C Pacú sensitive shock, no supplemented Further research should target higher concentrations P. diets take advantage valuable resource.