Motility of spermatozoa was studied on 12 and 7 specimens of Acipenser persicus and A. stellatus, respectively. The density measured to be 2.22±0.65x109ml-1 in A. persicus and 2.21±0.55x109ml-1 in A. stellatus. Semen samples were diluted with two extenders containing tris 118mM, sucrose 23.4mM, pH=8, egg yolk (20%), dimethyl sulfoxide (15%) and penicillin potassium (500IU/ml) and biociphus exte...

Abstract The eastern part of the Black Sea and its tributaries are suitable habitats for several sturgeon species, among which Acipenser gueldenstaedtii , A. stellatus nudiventris persicus sturio H. huso well documented. However, different threats have led these species to a dramatic decline, all them currently listed as Critically Endangered some Locally Extinct in that area. We tested 94 wild...

The effects of dietary phospholipids (PL) on the performance juvenile stellate sturgeon (Acipenser stellatus) was evaluated in terms growth and feed efficiency parameters, muscle liver fatty acid profiles, activity digestive antioxidative stress enzymes, expression lipoprotein lipase (lpl) insulin-like factor (igf1). For this purpose, seven isoproteic (44% crude protein) isolipidic (17% fat) di...

One of the last wild populations critically endangered stellate sturgeon (Acipenser stellatus) survives in Danube River. Limited knowledge about genetic structure, ecology, and evolution this species led to poor inconsistent management decisions with an increased risk for extinction wild. Here we show results structure screening River population over 12 years timespan. Our research does not bri...