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Seeds for genetically modified maize NK603 are not freely available for cultivation in Europe and test material is purchased outside Europe.

All maize material (GM, near-isogenic and conventional varieties) used for feed production in the frame of G-TwYST was available on the market. The G-TwYST consortium did not sign any contract with the variety and event owners.


The diets purchased for the feeding trials are nutritionally balanced and serve the trial design. Diets for the long-term feeding trial are ordered batch-wise because of limited shelf life. All diets shall be produced according to GLP standards. Diet suppliers shall warrant that no other transgenes than those expected are present.

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Tomorrow‘s food: How GMOs change global farming

30 July 2018

Austrian documentary makers from the media and research platform addendum.org published a version of their documentary "Tomorrow‘s food: How GMOs change global farming" with english subtitles (put subtitles 'on') on their Youtube channel. They included the G-TwYST findings that were presented at the final Conference in Bratislava on April 16, 2018 (between 28:15 and 31:20 in the documentary).


G-TwYST Conclusions & Recommendations

29 April 2018


At a Conference held in Bratislava, Slovakia, on 16 April 2018, G-TwYST presented draft conclusions and recommendations regarding guidance on the design, conduct, interpretation, and analysis of animal feeding studies and their value for GMO risk assessment. A final version of G-TwYST Conclusions and Recommendations can be downloaded here.