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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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Comments on statistical methods for safety assessment published

March 6, 2018


In safety assessments a large number of non-target effects  has to be analysed statistically. A recent paper published in the Journal of Agricultural and Food Chemistry advocates an approach which leads to over-optimistic conclusions. In a recent Correspondence to this journal the concerns about the misapplication of methodology are explained. See: Safety Assessments and Multiplicity Adjustment: Comments on a Recent Paper, available on the Journal of Agricultural and Food Chemistry website at http://pubs.acs.org/doi/abs/10.1021/acs.jafc.7b03686.

Registration for Final Conference open

1 March, 2018


On April 16, 2018 G-TwYST organises a conference on general conclusions and recommendations from three scientific projects: G-TwYST, GRACE and GMO90+. Registration for this conference is compulsory and can be done by completing the registration form at the G-TwYST website. Registration is open until April 6, 2018.

More information, including a preliminary programme, is available on the G-TwYST Final Conference webpage.