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  1 - Survey of Ergosan additive effects on gain weight, perpetuity rate and food conversion index in Rainbow trout
  Sh Notash حمید Mirzaei سعید Sadigh Eteghad
      Evaluation of the effect of Ergosan additive on growth rate, feed conversion index and survival rate of 1gr Rainbow trout hatchlings. The purpose of the present study was to evaluate the effect of consumption of Ergosan additive on production indices More

      Evaluation of the effect of Ergosan additive on growth rate, feed conversion index and survival rate of 1gr Rainbow trout hatchlings. The purpose of the present study was to evaluate the effect of consumption of Ergosan additive on production indices of 1gr Rainbow trouts namely growth rate, feed conversion index and survival rate. Thus the effect of this additive was investigated by selecting five experimental groups (one control and four treatment groups) each consisting of 1500 fish with a weight of 1gram reared in exactly identical conditions. The treatment groups were fed 1, 2, 3 and 4 kg/ton of Ergosan with their diet for 60 days and the data were then analyzed. According to the results, Ergsan had the best effect on the production indices of the third treatment group (3 kg/ton) (p<0.05) and the least production indices were seen in the control group. Consequently, Ergosan additive at the rate of 3kg/ton for 2 months with an interval of 10 days can be included in the diet of Rainbow trouts with the body weight of 1 gram reared at the temperature of 12 ± 0.5 degrees Celsius.   Manuscript profile