Taurine modulates hepatic oxidative status and gut inflammatory markers of European seabass (Dicentrarchus labrax) fed plant feedstuffs-based diets

• Tipo: Artigo em Revista Científica Internacional
• Data: 2019

Autores

Martins, N (Autor) Outra; Magalhaes, R (Autor) Outra; Castro, C (Autor) Outra; Couto, A (Autor) Outra; Diaz Rosales, P (Autor) Outra; Oliva Teles, A (Autor) FCUP; Peres, H (Autor) FCUP

Revista

Título: Amino Acids

Vol. 51

Páginas: 1307-1321

ISSN: 0939-4451

Editora: Springer Nature

Indexação

ISI Web of Knowledge - 16 Citações

Scopus - 19 Citações

Outras Informações

ID Authenticus: P-00Q-ZTK

DOI: 10.1007/s00726-019-02769-4

Abstract (EN): This study aimed to evaluate the effect of taurine (tau) supplementation to low fishmeal (FM) diets on growth performance, oxidative status, and immune response of European seabass juveniles. Four isoproteic (46% crude protein) and isolipidic (19% crude lipid) diets were formulated to contain either 25 or 12.5% FM and a mixture of plant feedstuffs, supplemented or not with 1% tau. Twelve groups of 20 fish (IBW = 9.4 g) were fed each diet for 9 weeks. Reduction of dietary FM from 25 to 12.5% impaired growth performance, feed efficiency, and protein efficiency ratio but had no effect on nitrogen retention (% N intake). Independently of FM level, dietary tau supplementation improved growth performance and nitrogen retention without affecting feed efficiency. Dietary FM level reduction increased liver G6PDH activity, but did not affect lipid peroxidation or activities of redox key enzymes. Contrarily, dietary tau supplementation decreased hepatic G6PDH and GPX activities and lipid peroxidation. Gene expression COX-2 was not affected either by FM or tau levels but TNF-alpha increased with the reduction of FM level but not with the tau level. Dietary tau supplementation decreased Casp3 and Casp9 expression regardless of dietary FM level. Overall, this study evidenced that dietary tau supplementation improved growth performance and antioxidant response and reduced intestine inflammatory and apoptosis processes.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 15