%A Martin T. S?rensen %A S?ren H?jsgaard %T Effects of field crops on animals: Considerations with regard to design using Chlormequat-treated wheat crop as an example %X There is concern whether consuming products based on crop from Chlormequat-treated fields can cause reproduction problems in animals and humans. An experiment is presently being conducted to investigate this using the pig as a model. Considerations with regard to experimental design when investigating whether differently treated crop can affect animal/human biology is discussed. Only about half of the data are presently available. A preliminary survey of these data does not show clear differences between Chlormequat-treated and organic non-treated wheat with regard to reproduction performance of pigs. %D 2007 %K Plant growth regulator, Chlormequat, experimental design, reproduction, pig %L orgprints10354