The Effect Of Three Different Diets On Growth And Survival Of Persian Sturgeon (Acipenser Persicus) Larvae
Efekat tri različite hrane na rast i preživljavanje larvi persijske jesetre (acipenser persicus)
Author
Pajand, Z.
Moghaddam, Haddadi
Parandavar, H.
Chubian, F.
Rufchaei, R.
Keywords
GrowthSurvival
Acipenser persicus
Nereis diversicolor
Daphnia spp
Diets
Metadata
Show full item recordAbstract
A feeding experiment was conducted to evaluate growth and survival of Persian sturgeon larvae fed with live food (Nereis diversicolor and Daphnia spp.) and artificial diet. Diets were included: Diet 1: Dafnia (Dafnia magna), Diet 2: Nereis diversicolor worm; Diet 3: Mix of Daphnia (Daphnia spp.) (50%) and Nereis diversicolor (50%), Diet 4: Mix of Nereis diversicolor (50%) and concentrate food (50%) and Nereis diversicolor (50%); Diet 5: Mix of Daphnia spp. (33.33%) and Nereis diversicolor (33.33%) and concentrate food (33.33%). Persian sturgeon larvae were distinctly transferred to 15 tanks and fed for 15 days. For each treatment, 60 larvae were stocked into tanks. The total length and body weight of the fish were determined once before initiation of the experiment and at the end of the experimental period to assess their growth performance. Water quality parameters were recorded two times a day. There was significant difference (P<0.05) in survival of Persian sturgeon larvae fed diets 2 and 3 and the other diets. Significant differences (P>0.05) were not found between diets 2 and 3 and also between diets 4 and 5.
The value for BWI, PBWI, GR, DGI, SGR was higher in larvae fed mix of Nereis diversicolor and Daphnia spp. (diet 3) (p<0.05) and there was significant difference between all of groups. Except diet 3 there was no significant difference in the CF of fish fed the survey diets.