Growth, Feed Utilization, and Glycemic Response in European Sea Bass, Dicentrarchus labrax, Juveniles Fed Carbohydrate of Different Complexities

• Type: Article in International Scientific Journal
• Date: 2011

Authors

Paula Enes (Author) FCUP; Helena Peres (Author) FCUP; Ivone Almeida (Author) Other; Ana Couto (Author) Other; Aires Oliva Teles (Author) FCUP

Journal

Title: Journal of the World Aquaculture Society

Vol. 42

Pages: 873-879

ISSN: 0893-8849

Publisher: Wiley-Blackwell

Indexing

ISI Web of Knowledge - 12 Citations

Scopus - 14 Citations

Scientific classification

FOS: Agrarian Sciences > Agriculture, Forestry, and Fisheries

Other information

Authenticus ID: P-002-J4E

DOI: 10.1111/j.1749-7345.2011.00525.x

Abstract (EN): The effect of dietary carbohydrate complexity on growth, feed utilization, and glycemia was studied in European sea bass juveniles. Four isonitrogenous (50% crude protein) and isolipidic (15% crude lipids) diets were formulated to contain 20% pregelatinized maize starch (PGS diet), dextrin (DEX diet), maltose (MAL diet), or glucose (GLU diet). No effect of dietary carbohydrate complexity on growth was noticed. Feed efficiency and protein efficiency ratio were lower in fish fed the GLU diet than in the other groups, whereas the opposite was observed for feed intake. Plasma glucose peaked 3-4 h after feeding in fish fed the MAL and GLU diets, whereas in fish fed the PGS and DEX diets the peak was reached 5-6 h after feeding. Peak plasma glucose concentration (13 mmol/L) was higher in fish fed the GLU diet than the other diets (9 mmol/L). Shorter hyperglycemia duration was observed in fish fed the MALT and GLU diets (6 h) than the PGS and DEX diets (10 h). Complex carbohydrates delayed plasma glucose concentration peak compared with simple sugars, whereas the opposite was observed for hyperglycemia duration. Overall, dietary maltose, dextrin, and starch were apparently better utilized as energy source than glucose by European sea bass juveniles.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7