Scheme of experiments.
Investigations of the influence of GM-soya (Roundup Ready, RR) on Wistar rats and first posterity were performed. Rat females received additionally to the diet the soya flour (5-7 g for each rat) two weeks before mating, during mating, pregnancy and lactation: traditional soya and GM-soya (Roundup Ready, RR). Group of rats, which received only diet without any food additives, was considered as the control group. The weight, size and mortality of rat kids were analyzed.

Results can be found here in pdf format

Conclusion: So, the high mortality (~ 55,6%) of rat kids in first generation after addition of GM-soy (Roundup Ready, RR) into the diet of rat females (before pregnancy, during pregnancy and
during lactation) were revealed in these experiments. Weight of 36% rat kids, whose mothers were fed by GM-soya, was less than 20 grammas in two weeks after birth in comparison with control group and group "tradit. soya" (6% and 6,7% accordingly).
These data were represented at the session of GMO risks during Gastroenterological Week in Russia.

I would be very glad if you apply to scientists of your country with the request to perform this kind of experiments with GMO (GM-potatoes, or GM-soya, or GM-corn and others).