DUBLIN (Reuters) - Beef containing horse DNA that was supplied by an Irish company to major food companies like Tesco originated in Poland, Ireland's agriculture department said on Saturday. The British food industry has been rocked by the revelation retailers sold beef products that contained horse DNA, a scandal that has also left Ireland's 2 billion euros ($2.6 billion) beef industry reeling from the knock-on effects. Results of tests showed that Polish ingredients used by Irish burger manufacturer Silvercrest contained 4.1 percent horse DNA, the agriculture department in a ... Read More