Effect of replacement fish meal by soybean meal on growth and survival of Kuttum (Rutilus frisii kutum)
Subject Areas : New Technologies in Aquaculture Development
Keywords: growth, fish meal, Kutum, Keywords: Soybean meal,
Abstract :
Abstract This study was carried out in Sefidroud Fisheries Research Station in Astaneh-Ashrafieh city in 2009. The research was conducted to assess the effect of 5 pure dietary of Isonitrogenous and Isoenergetics with different protein sources. The test followed a Randomized complete design. Each treatment was organized with 4 replicates and totally 20 rearing tanks were involved. The period of test was planned for 60 days and the test organism was housed in fiber-glass tanks of 110 l capacity. The main sources of protein in test diets were fish meal (F) and soybean meal (S), as fish meal was replaced by soybean meal in each treatment. Test diets consisted of F100/S0 F70/S30, F50/S50, F30/S70 and F0/S100 fish meal per soybean meal percent. Daily Feeding was planned on 3% of body weight and similar in each treatment. The results showed that with increment of fish meal level in proportion to Soybean meal in experimental diets the indices of growth of Rutilus frisii kutum concerning body weight, specific growth rates, food conversion ratio and protein efficiency ratio improved. As in a diet with 100 and 70 % fish meal maximum improvement of vital factors were achieved. Survival ratio (100%) was similar in all of the diets. The diet of F100/S0 and F70/S30 had no significant differences, so it is worthto replace 30% of fish meal with soybean meal in kutum diet for maximum growth and optimum economically point of view.
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