Performance of Genetic Modified Soybean Meal in Trout Diets

Japanese researchers investigated the use of genetically modified (GM) soybean meal in trout diets.  A GM defatted soybean meal compared to a regular soybean meal fed at two levels (15 and 30%) in a 42% protein diet fed to juvenile trout (48.3 g) for 12 weeks.  The results showed no significant differences in growth or feed performance between the two soybean meal sources.  Promoter fragments were detected in muscle of fish fed the GM soybean meal; however, these fragments were not detected after five days on the non-genetically modified meal diet.  Note-These research results are another example showing that the nutritional value of protein in GM soybean meal is similar to non-GM soybean meal.

Chainark, P. and co-workers.  2006.  Availability of genetically modified soybean meal in rainbow trout (Oncorhynchus mykiss) diets.  Fisheries Sci. 72(5): 1072-1078.