On the Efficiency of Soybean Meat as a Protein Source Substitute in Fish Feed for Common Carp

An experiment on the efficiency of soybean meal substituted for fish meal in the diet of common carp was carried out at the Fish Culture Experiment Station of the National Fisheries University of Pusan from June 27 to August 25, 1983. The carp used for the experiment were 50 fish each lot, each averaging 26 g in initial weight (total weight 1300 g). The experimental diets contained , and soybean meal (-protein) at iso-protein content basis in place of white fish meal in the control diet which contained protein. The growth rate in the control division was highest with progressive decrease in performance of the fish with increasing rates of soybean meal substituted in the test diets. Nevertheless, the soybean meal test diet groups showed acceptable conversions and growth rates, i. e. feed coefficients being 1.28 and l.30 and daily growth rates, compared to for the control group, respectively. Therefore, soybean meal could be substituted for fish meal in carp diet by without significant differences of performance with some saving in feed cost.