عنوان مقاله [English]
In this study, 5 diets were formulated to examine the effect of replacing 0, 25, 50, 75, and 100 % of canola meal to soybean meal on the growth performance of rainbow trout (Onchorhynchus mykiss). All of the experimental diets were iso-caloric and iso-nitrogenous. The experimental period was 63 days and used a total of 450 rainbow trout weighting 10gr randomly assigned to 15 tanks (30 fish per tank). Three tanks used in each diet. At the end of the trial, the performance was determined by weight gain, total feed intake, feed conversion ratio, protein efficiency ratio, specific growth rate, and survival. There was no significant difference in any of the performance growth and feeding parameters. These studies show that canola meal has potential to replace substantial level of soybean meal in diets for rainbow trout with no significant decrease in growth or feed efficiency.
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