تغييرات اسيدهاي چرب سيست هاي فاقد پوسته آرتميا اورميانا در زمان نگهداري

Fatty acids fluctuations on decapsulated cysts of Artemia Urmiana during storage

Urmia Lake is one of the largest habitats of artemia which is located at Northwest of Iran. The larvae of artemia contain different fatty acids as well as EPA &DHA which are essential for feeding of fishes and crustacean larvae. These fatty acids are useful against disease and pigments production. The aim of present study was to investigate the quantitive variation of fatty acids of decapsulated cysts artemia in Urmia Lake which stored for nine months after production. For this study some lowhatching Artemia urmiana cysts were selected, purified, then decapsulated by chemical materials. They packed in cans after drying. These cysts stored at +4 to +10 °C for nine months and their fatty acid profiles were analyzed during five intervals. Analysis of data showed significant outcome (P:OO.05) for CI8:ln9, C20:0 and C20:5n3 (EPA) and non-significant for the rest of fatty acids (P>O.05).