Effect of probiotic Primalac on growth performance, survival and body composition of Acipenser persicus fingerlings

Document Type : Physiology (Animal)

Authors

Department of Fisheries, Faculty of Fisheries and Environment, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran

Abstract

The  use  of  Probiotics  for  increasing  the  growth  and  resistance  against  disease  are  well documented  in  aquaculture.  We  conducted  a  study  to  determine  the  effects  of  probiotic (Primalac)  on  the  growth,  survival  and  body  composition  in  Acipenser  persicus  fingerlings. The  commercial  Probiotic,  Primalac,  were  mixed  thoroughly  with  the  artificial  feeds  at concentration  of  0.0  (control),  0.05,  0.1  and  0.15  %  of  dry  diet  and  fed  to  healthy  fish (14.676±0.813 g) at 2 – 3.5 % of their body weight daily in two split doses for 15 weeks. The trail was carried out in 12 PVC tanks 500 Liter which about 200 liter of water. That all tanks 10  juvenile  Persian  sturgeons  were  stocked.  During  the  experimental  period,  weight  and length  of  fish  were  recorded  at  an  interval  of  14  days.  Results  showed  that  specific  growth rate (SGR), body weight gain (BW %), net protein utilization (PER) and feed efficiency (FE) showed  significantly  (P<0.05)  different  among  the  experimental  groups.  The  present  study results showed that probiotic treatments indicated no significant difference were observed in body chemichal compositions (P>0.05).  

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