TITLE:
Glyphosate-Residues in Roundup-Ready Soybean Impair Daphnia magna Life-Cycle
AUTHORS:
Marek Cuhra, Terje Traavik, Mickaël Dando, Raul Primicerio, Daniel Ferreira Holderbaum, Thomas Bøhn
KEYWORDS:
Transgenic GTS 40-3-2 Roundup-Ready Soybean, Glyphosate Residues, Life-Long Animal Feeding Study, GMO Risk-Assessment, Herbicide-Tolerant Cultivar Quality, Aquatic Invertebrate Ecotoxicology
JOURNAL NAME:
Journal of Agricultural Chemistry and Environment,
Vol.4 No.1,
January
30,
2015
ABSTRACT: Herbicide tolerant plants such as Roundup-Ready soybean contain residues of glyphosate herbicide. These residues are considered safe and previous animal-feeding-studies have failed to find negative effects related to such chemical residues. The present study tests 8 experimental soy- meal diets as feed in groups (each containing 20 individuals) of test-animals (D. magna). The diets have different levels of glyphosate residues and we show that animal growth, reproductive maturity and number of offspring are correlated with these chemicals. The tested soybeans are from ordinary agriculture in Iowa USA and the residues are below the regulatory limits. Despite this, clear negative effects are seen in life-long feeding. The work enhances the need for including analysis of herbicide residues in future assessment of GMO.