The effect of dietary Rhus coriaria L. supplementation on fatty acids composition in table eggs

Branislav Gálik, Henrieta Arpášová, Daniel Bíro, Michal Rolinec, Milan Šimko, Miroslav Juráček, Ivana Novotná


The aim of the study was to analyse the effect of Rhus coriaria L. on fatty acids composition in table eggs. In the experiment, there were used laying hens Hy-Line Brown at the age 20 weeks, experiment lasted 21 weeks. Two diets for two hen´s groups (control: C and experimental: E) were used in trial. In control group, hens were fed by commercial total feed mixture, in experimental group the feed mixture was supplemented by Rhus coriaria L. seeds (1 % in feed mixture). During the last week of experiment, eggs of group were collected and after adjustment were analysed for fatty acids. In experimental group of hens was found in egg´s yolk significantly (P<0.05) higher percentage of myristic, myristoleic and palmitic acid. The same effect of Rhus coriaria L. was found in palmitoleic acid (P<0.05). In major fatty acid in yolk, oleic acid was found a positive effect (P<0.05), lower percentage in yolk fat in experimental laying hens group with supplemented feed mixture. In eggs from experimental group was found a tendency (P>0.05) of a higher linoleic acid percentage. The same tendency (P>0.05) was found in γ-linoleic acid. In egg´s yolk from control group of hens were found higher percentage of α-linoleic acid (P<0.05).  In arachidic and arachidonic acid, there were didn´t found a effect of Rhus coriaria L. seed supplementation in total feed mixture hen´s diet.

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