Dietary soybean lecithin affects growth performance, fillet biochemical composition and digestive enzyme activity in Sparidentex hasta juvenile. Issue 1 (1st January 2019)

• Record Type: Journal Article
• Authors: Pagheh, Esmaeil; Agh, Naser; Marammazi, Jasem G.; Nouri, Farzaneh; Sepahdari, Abolfazl; Gisbert, Enric; Torfi Mozanzadeh, Mansour
• Is Part Of: Journal of applied animal research. Volume 47:Issue 1(2019)
• Page Start: 24
• Page End: 33
• Publication Date: 2019-01-01
• Subjects: Digestive enzymes -- feed intake -- humoral immunity -- lipid composition -- soybean lecithin -- Sobaity seabream; Animal culture -- India -- Periodicals; Animal culture -- Tropics -- Periodicals; 636.005
• DOI: 10.1080/09712119.2018.1557663
• Languages: English
• ISSNs: 0971-2119

Abstract

ABSTRACT: An eight-week study was conducted on silvery-black porgy ( Sparidentex hasta ) juveniles to evaluate four isoproteic, isolipidic and isoenergetic different diets (50% crude protein, 20% crude lipids, 18.5 MJ kg −1 ) containing graded levels of soybean lecithin (SBL) (0, 30, 60 and 90 g kg −1 diet) at the expense of fish oil (FO). Fish fed the 60 g SBL kg −1 diet had significantly higher weight gain (32.4%) and feed intake (8.8 g fish −1 ) than the control group (SBL 0) ( P < 0.05). The fillet fatty acid (FA) profiles were correlated with the FA profile of the experimental diets. Fish fed with SBL-supplemented diets had higher fillet phosphatidylcholine levels than the control group ( P < 0.05). Plasma total immunoglobulin was higher in fish fed 60 and 90 g SBL kg −1 diets than in the other groups ( P < 0.05). Total protease activity was higher in fish fed the 90 g SLB kg −1 diet than other treatments ( P < 0.05). Results indicated that substitution of dietary FO with SBL diet up to 67% (60 g SLB kg −1 diet) improved somatic growth performance and profoundly affected the fillet fatty acid profile in silvery-black porgy juveniles.