Akademik Veri Yönetim Sistemi
ANKARA UNIVERSITESI VETERINER FAKULTESI DERGISI, cilt.68, sa.3, ss.259-267, 2021 (SCI-Expanded)
This study was aimed to determine fatty acid compositions of Jerusalem artichoke herbages (Helianthus tuberosus) at five different phenological stages. Jerusalem artichoke was harvested at early vegetative, vegetative, early flowering, full flowering, and early seed stages and its herbage samples were obtained. In the herbages, the saturated fatty acid (Sigma SFA), unsaturated fatty acid (Sigma UFA), polyunsaturated fatty acid (Sigma PUFA), monounsaturated fatty acid (MUFA), medium chain fatty acids (Sigma MCFA), long chain fatty acids (Sigma LCFA) and very long chain fatty acids (Sigma VLCFA) were analyzed. The linoleic acid (C18:2n 6c) concentrations of herbages were changed from about 21 to 23% at different growing stages (P<0.05). The oleic acid (C18:2n 6t) concentrations of this forage increased with plant growing (20 to 34% in total fatty acids) (P<0.001). The Sigma PUFA, w-3, w-6, Sigma MCFA and Sigma VLCFA concentrations of Jerusalem artichoke herbage were positively correlated with plant growing stage (from vegetation to after flowering) (P<0.05). The Sigma MUFA, w-9 and Sigma LCFA concentrations of this herbage were negatively correlated with plant growing stage of plant (P<0.05). As a result of the study, the Sigma UFA, Sigma MUFA and w-9 fatty acids compositions of Jerusalem artichoke herbage, harvested at early flowering stage, were high than those of other plant growing stages. Besides, the Jerusalem artichoke herbage, harvested at flowering stage, was rich from Sigma PUFA, w-3 and Sigma VLCFA fatty acids. Therefore, Jerusalem artichoke herbage, harvested at early flowering and full flowering stages, has high functional properties for ruminants and other herbivorous.