Research regarding bioproductive indicators [sup][/sup]achieved by the Siberian sturgeon (Acipenser baerii) juvenile in recirculated syste
Journal Title: Aquaculture, Aquarium, Conservation & Legislation - International Journal of the Bioflux Society - Year 2011, Vol 4, Issue 4
Abstract
For this research we used a population of 2799 Siberian sturgeons (Acipenser baerii) between 11.04.2009 and 23.05.2009. The age of juveniles was between 316 days and 360 days and they were maintained in 4 tanks with a volume of 12.56 m[sup]3[/sup]/tank. Average water temperature in the breeding tanks was 17.3 [sup]0[/sup]C in the first study period, 18 [sup]0[/sup]C in the second period and 19.8 [sup]0[/sup]C in the third period. In this period the average value of dissolved oxygen level in the tanks was 5.1 mg/L. The Siberian sturgeon juveniles were fed with Agua Bio Sturion (Ø=3 mm; 45% Protein and 20% Fat). At every 2 weeks, the average body weight and the average body length of 30 individuals from each tank were registered. At the age of 316 days the juveniles reached an average body weight between 164.43±7.63 g and 325.80±15.20 g and an average body length between 35.78±0.48 cm and 45.31±0.66 cm. During the 44 experimental days, the 2799 Siberian sturgeons have achieved an real weight gain of 310.67 kg, with a specific consumption of 0.67 kg feed/kg body weight gain and an index of feed conversion of 1.48 kg body weight gain/kg of consumed feed.
Authors and Affiliations
Szelei Tibor, Bura Marian, Szücs Clara
Keywords
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