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Paper Information

Journal:   IRANIAN SCIENTIFIC FISHERIES JOURNAL   Spring 2004 , Volume 13 , Number 1; Page(s) 115 To 128.
 
Paper: 

EFFECT OF THE TIMING OF INITIAL FEEDING ON GROWTH AND SURVIVAL OF PERSIAN STURGEON (ACIPENSER PERSICUS) LARVAE

 
 
Author(s):  KORDJAZI Z.*, KAMALI A., YAGHMAEI FARHAD, NAZARI R.M.
 
* Fishery Faculty, Gorgan University, Gorgan, Iran
 
Abstract: 
Effect of the timing of first feeding (9, 10, 11, 12 and 13 days post hatch) with a live food (Anemia naupli) on Persian sturgeon was examined at 17.7±0.8 and 18.1±0.4°C. The results showed that the timing of first feeding affected on weight, length, length-weight ratio and specific growth rate, but one day delay in the timming of initial feeding doesn't affect on the survival and two days delay in the timming of initial feeding doesn't affect on the condition factor. Results of this research showed that some factors such as weight, length, length-weight ratio and specific growth rate, are more suitable than survival and condition factor for exhibiting of effects of delay in the starting time of initial feeding in Persian sturgeon fish larvae. Thus it is better that the initial feeding of Persian sturgeon at 17.7±0.8 and 18.1 ±0.4°C started on 12 and 9 days after hatching, respectively, as well as more delay in intiating exogenous feeding has negative effects on growth of larvae.
 
Keyword(s): LARVAE, EXOGENOUS FEEDING, GROWTH, SURVIVAL, ACPENVER PERSICUV
 
References: 
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