تاثير آنزيميت (زئوليت) بر فاكتورهاي رشد، بازماندگي و تركيبات لاشه بچه تاس ماهيان ايراني(Acipenser persicus Borodin, 1897)

Anzymite efficacy on growth factors, survival and carcass compound of Persian sturgeon {Acipenser persicus Borodin, 1897) finger lings

Persian sturgeon (Acipenser persicus Borodin, 1897) is one of the most precious species of Caspian Sea. Considering Persian sturgeon is dominant species of Southern part of Caspian Sea; we should concern its facilities and test it in vivo. Persian sturgeon acclimatizes to artificial foods is very difficult. For this reason a mineral material matter by (Anzymite=Zeolite) added to food ration in order to stimulate food digestion and absorption. This is the first time that it has been added to food ration of Persian sturgeon finger lings to identify the effect of Anzymite on food ration efficiency in Shahid Beheshti Propagation and Culture of Sturgeon. 450 Persian sturgeon were tested by average weight of (3.70±0.74 gr) in fiber glass tanks (1 m3). Feeding conducted for a 60 period and three treatments (Anzymite 3%, Anzymite 5% and control group) applied by 3 replicates. The results has shown that there are statistical significant differences between treatment of 3% Anzymite with other treatments according to total weight and length, biomass increase, growth factors like this growth rate, specific growth rate, body weight index and food efficiency those were preferred comparing other treatments. Although condition factor and protein efficiency ratio in control were higher than other treatments. Feed conversion ratio in treatment diet contained by 5% Anzymite was significantly higher than other treatments. Survival rate of Anzymite 3% was higher than other treatments. Carcass analysis showed significantly highest protein and ash percent and the least fat and moisture in Anzymite5% (P<0.05). According results of this study we propose Anzymite 3% as an additive to get appropriate survival rate and growth for Persian sturgeon during finger ling culture.