nieuwe zoekopdracht
[ meld een fout in dit record ]mandje (0): toevoegen | toon Print deze pagina

Siberian sturgeon (Acipenser baerii) larvae fed Artemia nauplii enriched with poly-beta-hydroxybutyrate (PHB): effect on growth performance, body composition, digestive enzymes, gut microbial community, gut histology and stress tests
Najdegerami, H; Baruah, K.; Shiri, A.; Rekecki, A.; Van Den Broeck, W.; Sorgeloos, P.; Boon, N.; Bossier, P.; De Schryver, P. (2015). Siberian sturgeon (Acipenser baerii) larvae fed Artemia nauplii enriched with poly-beta-hydroxybutyrate (PHB): effect on growth performance, body composition, digestive enzymes, gut microbial community, gut histology and stress tests. Aquac. Res. 46(4): 801-812. dx.doi.org/10.1111/are.12231
In: Aquaculture Research. Blackwell: Oxford. ISSN 1355-557X; e-ISSN 1365-2109, meer
Peer reviewed article  

Beschikbaar in  Auteurs 

Trefwoorden
    Acipenser baerii Brandt, 1869 [WoRMS]; Artemia Leach, 1819 [WoRMS]
Author keywords
    Poly--hydroxybutyrate; sturgeon; growth performance; body composition;digestive enzymes; gut microbial community; gut histology; stress tests

Auteurs  Top 
  • Najdegerami, H
  • Baruah, K.
  • Shiri, A.
  • Rekecki, A.
  • Van Den Broeck, W.
  • Sorgeloos, P.
  • Boon, N.
  • Bossier, P.
  • De Schryver, P.

Abstract
    The effects of feeding Artemia nauplii enriched with or without poly-ß-hydroxybutyrate (PHB) and/or highly unsaturated fatty acids (HUFA) on Siberian sturgeon (Acipenser baerii) larvae were investigated. Feeding larvae with PHB-enriched nauplii (PHB, PHB + HUFA) decreased the growth performance of the larvae. PHB affected the body composition by increasing the lipid content of the whole body and decreasing total saturated, monoenoic, n3, n6 and decosahexanoeic acid (DHA) in the larvae, indicating that the PHB addition affected lipid metabolism. A high activity of pepsin was observed in the digestive extracts of PHB treatments (PHB, PHB + HUFA), while PHB suppressed amylase activity in the intestine of the larvae. Based on molecular analysis, PHB changed the microbial community in the distal intestine of the larvae. The highest counts of goblet cells were observed in the HUFA-containing treatments (HUFA, PHB + HUFA), indicating that HUFA addition may improve the mucosal barrier defence system. The overall quality of the larvae was evaluated by exposing them to different salinities and ammonia stress levels. PHB decreased survival rates in these challenges. Our results show that optimal PHB doses for bio-encapsulation into Artemia remain to be determined for further application at the earliest larval stages of sturgeon.

Alle informatie in het Integrated Marine Information System (IMIS) valt onder het VLIZ Privacy beleid Top | Auteurs 
IMIS is ontwikkeld en wordt gehost door het VLIZ, voor meer informatie contacteer .