Effect of dietary omega-3 fatty acids on red blood cell lipid composition and plasma metabolites in the cockatiel, Nymphicus hollandicus

摘要: Although dietary n-3 fatty acids have been extensively studied in poultry, they not yet prospectively investigated psittacines, despite potential benefi ts for preventing and treating athero- sclerosis, osteoarthritis, other chronic disease processes. The objectives of this study were to inves- tigate the incorporation into red blood cells (RBC) determine effects supplementation psittacine diets with fi sh or fl ax oil on plasma lipids lipoproteins cockatiel. Adult cockatiels fed a custom-formulated diet containing either 4% (wt/wt, as-fed) beef tallow (CON), 3% + 1% (FSH), 3.5% 0.5% (FLX; n = 20 per group). Baseline measurements obtained RBC acid composition, triacyl- glycerides (TAG), cholesterol. After 8 13 wk diets, chemistry profi les, lipoprotein density composition determined. At wk, total cholesterol was least FSH birds (P < 0.05) TAG concentrations less than FLX 0.05). Total acids, docosahexaenoic acid, docosapentaenoic eicosapentaenoic markedly great- er CON Alpha linolenic greatest Initial nal BW, nonlipid values did differ among groups. No adverse observed during 13-wk feeding period. oils provided similar PUFA caused greater reductions TAG, incorporation. Thus, mod- ifi cation long chain from appears safe may be cial these long-lived companion birds.