Effects of various dietary factors on astaxanthin absorption in Atlantic salmon (Salmo salar)

Download
  1. Get@NRC: Effects of various dietary factors on astaxanthin absorption in Atlantic salmon (Salmo salar) (Opens in a new window)
DOIResolve DOI: http://doi.org/10.1111/are.12108
AuthorSearch for: ; Search for: ; Search for: ; Search for: ; Search for:
TypeArticle
Journal titleAquaculture Research
ISSN1355-557X
Volume45
Issue10
Pages16111620; # of pages: 10
SubjectAbsorption; Astaxanthin; Atlantic salmon; Carotenoid; Cholesterol; Fibre; Lutein; Phytosterol; Vitamin E; Zeaxanthin
AbstractThe experiment was designed to investigate the dietary factors that might enhance or interfere with astaxanthin (Ax) absorption in salmon including potentially interfering factors such as certain carotenoids (zeaxanthin and lutein), plant sterols, fibre and enhancing compounds such as cholesterol and vitamin E. Two hundred and eighty-eight salmon (778 ± 78 g) were reared in sea water under controlled conditions and fed practical experimental diets. The experimental diets were supplemented with 40 mg Ax kg-1, in addition to various dietary factors, including cholesterol (2%), vitamin E (450 IU kg-1), wheat bran (5%), lutein (40 mg kg-1), zeaxanthin (40 mg kg-1) and phytosterol (2%). After 26 days of feeding, blood was collected and plasma was separated to determine the plasma Ax concentration. Ax was not detected in the plasma of fish fed the non-pigmented diet. Fish fed diet containing 2% cholesterol significantly improved Ax absorption, which was reflected in the higher Ax concentration in plasma of Atlantic salmon. Other supplements including vitamin E, wheat bran, lutein, zeaxanthin and phytosterols in diet had no significant effect on plasma Ax concentration. Fish fed diet containing 2% cholesterol significantly increased cholesterol concentration in fish plasma. Phytosterol had no benefit to lower cholesterol plasma level in fish fed 2% phytosterol-supplemented diet.
Publication date
PublisherWiley
LanguageEnglish
AffiliationNational Research Council Canada; Aquatic and Crop Resource Development
Peer reviewedYes
NRC numberNRC-ACRD-55462
NPARC number21272731
Export citationExport as RIS
Report a correctionReport a correction
Record identifier360ead43-3aa9-42e5-b8fb-942abeb42ee5
Record created2014-12-03
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)