This research deals with amain steps related to preparing live
food which is necessary to grow up larvae of different species of
marine family Penaeidae prawn, in this study the isolation of two
species of phytoplankton one cells they are Chlorell
a sp,
Tetraselmis sp, and the specimens are collected from littoral of
jableh and rearing them up in hard and liquid medium in laboratory
in Faculty of Sciences, Tishreen University, in the period between
April and august 2013.
This study aimed to investigate the effect of frozen live food (Daphnia magna) and artificial diets on growth performance, feed conversion ratio and survival of Cyprinus carpio fry reared in 25-liter glass aquaria. Duplicate groups of fry were fed o
n the tested diets three times a day to satiation for 21 days.
The results revealed that the growth rates (weight gain, % weight gain) were significantly (P<0.05) affected by the used diets. Fry fed on the frozen live food showed the worst growth rates, even their feed conversion ratio expressed the lowest value compared with the results obtained from fry fed on the artificial diets, although survival was not significantly (P>0.05) affected with the different diets. No significant differences (P>0.05) were noticed in the results obtained from fry fed on the different artificial diets.
