J 2010

IMPACT OF MICROCYSTIN CONTAINING DIETS ON PHYSIOLOGICAL PERFORMANCE OF NILE TILAPIA (OREOCHROMIS NILOTICUS) CONCERNING STRESS AND GROWTH

ZIKOVÁ, Andrea, Achim TRUBIROHA, Claudia WIEGAND, Sven WUERTZ, Bernhard RENNERT et. al.

Základní údaje

Originální název

IMPACT OF MICROCYSTIN CONTAINING DIETS ON PHYSIOLOGICAL PERFORMANCE OF NILE TILAPIA (OREOCHROMIS NILOTICUS) CONCERNING STRESS AND GROWTH

Autoři

ZIKOVÁ, Andrea (203 Česká republika, garant, domácí), Achim TRUBIROHA, Claudia WIEGAND, Sven WUERTZ, Bernhard RENNERT, Stephan PFLUGMACHER, Radovan KOPP (203 Česká republika, domácí), Jan MARES a Werner KLOAS

Vydání

Environmental Toxicology and Chemistry, Elsevier Science, 2010, 0730-7268

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

30304 Public and environmental health

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 3.026

Organizační jednotka

Přírodovědecká fakulta

UT WoS

000275368600012

Klíčová slova anglicky

Microcystin-LR; Fish diet; Tilapia; Stress; Growth

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 23. 6. 2020 10:47, Mgr. Marie Šípková, DiS.

Anotace

V originále

Diets containing Microcystis with considerable amounts of the cyanotoxin microcystin-LR (MC-LR) were fed to determine their impact on the physiological performance of the omnivorous Nile tilapia (Oreochromis niloticus) with regard to stress and growth performance. Four different diets were prepared based on a commercial diet (control, MC-5% [containing 5% dried Microcystis biomass], MC-20% [containing 20% dried Microcystis biomass], and Arthrospira-20% [containing 20% dried Arthrospira sp. biomass without toxin]) and fed to female Nile tilapia. Blood and tissue samples were taken after 1, 7, and 28 d, and MC-LR was quantified in gills, muscle, and liver by using high-performance liquid chromatography (HPLC). Only in the liver were moderate concentrations of MC-LR detected. The stress hormone cortisol and glucose were analyzed from plasma, suggesting that all modified diets caused only minor to moderate stress, which was confirmed by analyses of hepatic glycogen. In addition, the effects of the different diets on growth performance were investigated by determining gene expression of hypophyseal growth hormone (GH) and hepatic insulin-like growth factor-I (IGF-I). For all diets, quantitative reverse transcription-polymerase chain reaction (RT-qPCR) demonstrated no significant effect on gene expression of the major endocrine hormones of the growth axis, whereas classical growth data, including growth and feed conversion ratio, displayed slight inhibitory effects of all modified diets independent of their MC-LR content. However, no significant change was found in condition or hepatosomatic index among the various diets, so it seems feasible that dried cyanobacterial biomass might be even used as a component in fish diet for Nile tilapia, which requires further research in more detail. Environ. Toxicol. Chem. 2010; 29: 561-568.

Návaznosti

QH71015, projekt VaV
Název: Minimalizace rizik výskytu metabolitů sinic v technologických procesech rybářského sektoru.
Investor: Ministerstvo zemědělství ČR, Minimalizace rizik výskytu metabolitů sinic v technologických procesech rybářského sektoru