Published in Scientific Papers. Series D. Animal Science, Vol. LXIV, Issue 1
Written by Alina MOGODAN, Isabelle METAXA, Ștefan-Mihai PETREA, Ira-Adeline SIMIONOV, Aurelia NICĂ, Victor CRISTEA
The present study was carried out to measures and analyses the condition of cyprinids, reared in a two IMTA systems by using a few organosomatic indices. The first pond (PCP) was used for rearing common carp in polyculture with other cyprinids. The second pond was divided in two parts: first part-common carp (CP) and the second part - polyculture (PP). During this experimental period (May to September), the biometric measurement was made monthly. Regarding to the feeding regime, fish were feed only in PCP and CP pond (part of CP-PP pond). At the end of the experiment the results showed an increase in viscerosomatic index (VSI), hepatosomatic index (HIS), gastrosomatic index (GaSI) at cyprinids in CP and PCP. This is mainly due to the fact that only in CP and PCP feed was administered. An increase in the relative gut length (RGL) index was observed especially in grass carp, followed by the other cyprinids in the PP pond, part of the CP-PP pond, in which feed was not administered. In conclusion, this shows us that cyprinids can adapt to the natural feeding conditions in case of feed absence (cereals mix).
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