Livestock farmers need access to genetically modified crop technologies if they are to help feed the burgeoning world population, says Barry O’Neil (pictured), deputy director general of MAF Biosecurity New Zealand and president of the World Organisation for Animal Health OIE. Speaking at a briefing in London he said the world population was set to rise by 50% by 2020. Already a third of all arable crops were grown for animal feed, with some fed through inefficient feed conversion systems. Unless efficiency improved output would fail to keep up with demand.