Determination the effects of replacing canola meal with soybeen meal on the composition weight of rainbow trout (oncorhynchus mykiss).
Subject Areas : New Technologies in Aquaculture Development
Keywords: Canola meal, Keywords: Body composition, Rainbow trout, Soybean meal,
Abstract :
In this study, 5 diets were formulated to examine the effects of replacing 0, 25, 50, 75, 100% canola meal with 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 weighing 10 g, randomly assigned to 15 tanks (30 fish per tank). Three tanks were used for each diet. The approximate analysis of the carcasses was performed before initiation and after termination of the experiment. The result showed that replacement of soybean meal by canola meal did not have any significant effect on body moisture and crude fat among the fish fed the 5 different diets. However, it showed significant differences in crude protein and fiber. There was no significant difference in growth. This study showed that canola meal has the potential to replace a substantial level of soybean meal in diet for rainbow trout.
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