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Forskningsartikel2010Vetenskapligt granskad

Effects of -linolenic acid and eicosapentaenoic acid from linseed and algae, respectively, on reindeer (Rangifer tarandus tarandus L.) muscle fatty acid composition

Sampels, Sabine; Turner, Tyler; Öström, Åsa; Pickova, Jana

Sammanfattning

In an earlier study, we concluded that pellet-fed reindeer could not elongate 18:3n - 3 (-linolenic acid - ALA) sufficiently towards long-chain polyunsaturated fatty acids (LC PUFA) and need supplementation of LC PUFA. The present work investigated that the addition of n - 3 LC PUFA to feed in combination with ALA would increase the LC PUFA in the meat. Two groups of reindeer were fed pellets containing either linseed cake or linseed cake combined with algae (Nannochloropsis oculata) for 6 weeks before slaughter. Dietary n - 6/n - 3 ratio had a distinct influence on meat fatty acid (FA) composition when comparing linseed and linseed algae-fed animals with animals fed a conventional diet. Increased dietary proportions of ALA and eicosapentaenoic acid (EPA) increased these FA in muscle and docosapentaenoic acid (DPA) and docosahexaenoic acid in the polar lipid fraction compared to the conventional-fed animals. We concluded that an increased proportion of dietary EPA might lead to an increased elongation towards DPA in muscle. Algae and linseed are possible additives to reindeer feed in order to assure a similar valuable FA composition as in pasturing animals.

Nyckelord

DHA; GLC; lipid metabolism; nutrition; -3 fatty acids; sensory

Publicerad i

Acta Agriculturae Scandinavica, Section A - Animal Science
2010, volym: 60, nummer: 3, sidor: 175-186
Utgivare: TAYLOR & FRANCIS AS

SLU författare

Globala målen (SDG)

SDG2 Ingen hunger

UKÄ forskningsämne

Livsmedelsvetenskap
Husdjursvetenskap
Veterinärmedicin

Publikationens identifierare

  • DOI: https://doi.org/10.1080/09064702.2010.523092

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/47831