RESEARCHES REGARDING THE TECHNOLOGICAL PERFORMANCES OF CARP REARING DURING WINTER PERIOD IN THE CONDITIONS OF A RECIRCULATING AQUACULTURE SYSTEM
| Autor: | G. STEFAN, V. CRISTEA, A. MIHALACHE, I. GRECU, I. VASILEAN, L. SFETCU, D. GHEORGHE, A. DOCAN |
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| Jazyk: | angličtina |
| Rok vydání: | 2008 |
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| Zdroj: | Scientific Papers Animal Science and Biotechnologies, Vol 41, Iss 2, Pp 148-155 (2008) |
| ISSN: | 2344-4576 1841-9364 |
| Popis: | The techniques of carp culture are highly diversified, ranging from the extensive production in pond or open water with no fertilization or supplemental feeding to highly intensive systems in concrete tanks or cages. Among the different carp species, common carp is the best species reared in intensive monoculture, the others (Chinese and Indian carps) being usually cultivated in polyculture (P. Kestemont, 1995). An experiment was conducted in inside recirculation system conditions to identify the technological performances on carp growth and survival at the Fishing and Aquaculture Department, Galati, during winter period (February, 2007 – March, 2007). The 1-year-old carp (Cyprinus carpio) 4792g; 4594 g; 4561 g and 4525 g (total weight) grew to 7384g; 7017g; 6924g and 7125 g in 44 days in aquarium 1, 2, 3 and 4, respectively. In all aquariums, the fish appeared healthy and no mortality was observed. Feed conversion efficiencies (FCE) had similar values among all aquariums, the highest FCE being found in B4 aquarium with 1, 57 value. Water quality parameters were acceptable range for fish culture. Results show that the carp rearing during winter period in the inside recirculation system is a very good economic solution. |
| Databáze: | OpenAIRE |
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