The Effect of Different Levels of Immunogen Stimulant on Growth and Survival of Common roach, Rutilus rutilus caspicus

Subject Areas : New Technologies in Aquaculture Development

azadeh nousratpour ¹ , Farahnaz Lakzaei ²

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Received: 2022-02-05 Accepted : 2022-02-05 Published : 2021-12-22

Keywords: growth, Survival, Keywords: Immunogen, Rutilus rutilus caspics,

Abstract :

AbstractThis research carried out to evaluate efficiency of immune stimulant (immunogen) in four treatments (0, 0.5%, 1%, 1.5%) to the diet of young Caspian roach (Rutilus rutilus caspicus) with average body weight of 1.21±0.36 gr. for eight weeks. Fish were fed 3 times a day. At the end of cultivation period, the amount of growth and survival rate of common roach was compared. The results showed that, body weight increase, the percentage of body weight increase, specific growth rate and net production of fish in 1.5% treatment of immunogen was higher than control group but it didn’t reveal a significant difference. Moreover, the percentage of daily consumed food in 1.5% treatment of immunogen showed a higher significantly than control group. The survival rate in 0.5 treatment of immunogen was higher than control group but it didn’t show significant differences. In general, immunogen stimulant cann’t be used as a food supplementation for growth and survival in common roach cultivation.