I can only speculate. For example: how was this data obtained? Is the level of scrutiny equal for all countries or is there some self-reporting going on? All I know is about the differences that exist between regulations and incentives between the EU and the US. This was recently brought to public attention in the EU and there have been some large protests because of the TTIP attempt to "harmonize" practices.
Where's it say that antibiotics can't be used medically in livestock in the EU?
I see where it says antibiotics in animal feed – significantly restricted in the EU in 1998 and banned for non-medical use in 2006., but that points to them being allowed for medical purposes (on sick animals, rather than as feed additives).
http://capreform.eu/food-safety-in-the-us-eu-ttip-negotiatio...
Do you think this is a lie or being misrepresented in some fashion?