The experiments are far from satisfactory in its sample size and the statistic method used. Our group transcribed all raw data and redid statistical analysis using Turkey multiple method. I wondered why there is no such difference in female rats group. It is highly possible that female rats also showed significant growth difference if experiment is conducted in much larger scale and with longer feeding period. Chemical analysis of the components from both normal and genetically modified is important to certify so-called substantial equivalence.
Difference is observed in toasted soybeans.
Besides such main components like water content, protein, fat, fibre and ash, the analysis detected trypsin-inhibitor, lectin and urease which are called harmful physiologically active substance as feed. Urease is used an indicator of protein denaturation by heat treatment. These physiologically active substances remained active even after heat treatment in the genetically modified soybean, though those of herbicide sensitive normal bean were easily denatured and inactivated. The high activity of these elements does not usually satisfy the feed standard. However re-toasting further widened the difference in the activity between the two strains.