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

Autor: Carla Bacchetta, Pablo Augusto Scarabotti, Andrea Silvana Rossi, Jimena Cazenave, Analía Ale
Rok vydání: 2021
Předmět:
Fish Proteins
Gills
Gill
Antioxidant
Physiology
medicine.medical_treatment
Aquatic Science
medicine.disease_cause
Thiobarbituric Acid Reactive Substances
Biochemistry
Piaractus mesopotamicus
03 medical and health sciences
chemistry.chemical_compound
Animal science
Aquaculture
medicine
Animals
Intestinal Mucosa
music
Glutathione Transferase
030304 developmental biology
0303 health sciences
music.instrument
biology
Pyropia columbina
Superoxide Dismutase
business.industry
Cholesterol
Cold-Shock Response
Muscles
04 agricultural and veterinary sciences
General Medicine
Juvenile fish
Lipid Metabolism
Seaweed
biology.organism_classification
Diet
Oxidative Stress
Glutathione Reductase
Liver
chemistry
Dietary Supplements
Rhodophyta
040102 fisheries
0401 agriculture
forestry
and fisheries
Characiformes
business
Glycogen
Oxidative stress
Zdroj: Fish Physiology and Biochemistry. 47:829-839
ISSN: 1573-5168
0920-1742
DOI: 10.1007/s10695-021-00944-7
Popis: This study aimed to analyze the cold stress effects (in terms of hematology, energy reserves, and oxidative stress) in Piaractus mesopotamicus (pacú) and their mitigation by a Pyropia columbina red seaweed-supplemented diet. For this purpose, juvenile fish were fed with a control (CD) or a red seaweed-supplemented diet (RD) for 60 days, and then, the animals were exposed to a low temperature (14 °C) and a control temperature (24 °C) for 24 h. The cold shock generated an increase of hemoglobin levels in fish fed with both diets. In CD-fed fish, plasmatic triglycerides, cholesterol, and hepatic glycogen decreased after the thermal shock; meanwhile, the animals fed with RD showed decreased hepatic proteins, but increased cholesterol and hepatic glycogen. Regarding oxidative stress, antioxidant enzymes augmented their activity in the liver, intestine, and gills; meanwhile, lipid oxidative damage was observed in the liver and intestine of fish exposed to 14 °C and fed with both diets. Pacú was sensitive to cold shock, but no mitigation effects were observed in fish fed with the supplemented diet. Further research should target higher concentrations of P. columbina in supplemented diets to take advantage of this valuable resource.
Databáze: OpenAIRE
Externí odkaz: