Hematological profile in juvenile carp reared under a recirculating system conditio
Journal Title: Aquaculture, Aquarium, Conservation & Legislation - International Journal of the Bioflux Society - Year 2011, Vol 4, Issue 5
Abstract
The object of this paper is to investigate the influence the density of population and fish size has on the physiological condition of Cyprinus carpio in the light of the hematological coefficient and the erythrocyte constants. The physiology of the blood is an important parameter in order to define the general condition of the organism for all teleostean fish. The investigations of the metabolic profile of the blood aimed at determining the hematologic answer of the carp under the conditions of its exposure to the controlled modification of the following technological factors: size class, stocking density. The low value of the hematocrit (27% in both experiments) suggests a condition of anemia or the dehydration of the organism. The values registered by the hemoglobin were different, according to the size of the fish, varying between 5.22 and 5.34 g/dL blood for fish with size 65-66 g/fish, respectively 6.7-7.02 g/dL blood for fish with size 150-152 g, being with 29.92% higher in the case of fish with a larger size. The average number of red blood cell counts is constant for both experiments and these values are falling into the normal physiological gap. Erythrocyte constants (MCV, MCH and MCHC) vary according to the two size classes: MCH grows by 31.53% and MCHC by 28.60% with the individual growth of the carp. MCV presents values between 186.48 and 199.73 (µm[sup]3[/sup]), normal value for the studied species. The present study outlines the fact that the main hematological parameters vary according to the size class, the results being related to the results obtained following the investigation of the metabolic profile in the light of the technological parameters.
Authors and Affiliations
Ionica Enache (Bancu), Victor Cristea, Angelica Docan, Adina Popescu
Keywords
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