Effect of feeding with different dietary protein level on hematological indices of juvenile Siberian sturgeon, Acipenser baeri reared under recirculating systems conditio
Journal Title: Aquaculture, Aquarium, Conservation & Legislation - International Journal of the Bioflux Society - Year 2011, Vol 4, Issue 2
Abstract
Hematological indices are important parameters for the evaluation of fish physiological status. The aim of present study was to obtain a basic knowledge of the hematological response of Siberian sturgeon maintained in different technological condition induced by percentage of protein in feed. Specimens belonging to four experimental groups had individual weights of 135 g/fish, aged 5 months. The stocking density was 7.20 kg/m³ for the four variants; the fish biomass have been fed with ADVANCE BE 1 P granules with a protein content of 46 % for VE46P, respectively ALLER CLASSIC granules with a protein content of 30 % for VE30P (daily ration of 3 %). The sampling of Acipenser baeri blood from the four variants before and after the experimental trial allowed determination of hematological indices. Red blood cell counts (RBCc), haematocrit values (Hct), haemoglobin concentration (Hb), mean corpuscular volume (MCV), mean corpuscular haemoglobin (MCH) and mean corpuscular haemoglobin concentration (MCHC) were measured and analyzed, with routine methods used in fish hematology. Differences in hematological parameters were statistically analyzed by Student T test. Physiological stress induced by maintenance in different technological condition induced by percentage of protein in feed, is reflected in the hematological indices (significant decrease, p=<0.05, RBCc, Hb, MCV, MCHC) with direct implications at the biotechnological level.
Authors and Affiliations
Angelica Docan, Lorena Dediu, Victor Cristea
Keywords
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