2013 horse meat scandal as 100% beef. British company Primerdesign Ltd provided many of the tests to laboratories and companies wishing to test for contamination. By 16 January 2013 four subsidiaries of ABP had been accused of supplying adulterated meat. They were Silvercrest in County Monaghan, Dalepak in North Yorkshire, Freshlink in Glasgow, ABP Nenagh in County Tipperary, Ireland and Dairy Crest, Rossington. Hamburger meat from Silvercrest Foods, a subsidiary of Larry Goodman's ABP Food Group, in County Monaghan, Ireland, was found to contain 29% horse meat relative to beef. Porcine DNA was also found. Tesco dropped Silvercrest as a supplier of processed meat,
Viktor Hamburger Viktor Hamburger Viktor Hamburger (July 9, 1900 – June 12, 2001) was a German professor and embryologist. In 1951 he co-authored the Hamburger-Hamilton stages. Hamburger lectured, among others, Nobel Prize-winning neurologist Rita Levi-Montalcini, who identified nerve growth factor along with Hamburger when they collaborated. Hamburger began to work at Washington University in St. Louis in 1935; he retired from his professor position in 1969 and continued researching until the 1980s. Hamburger was born on in Landeshut, Silesia, Germany to Max Hamburger and Else Gradenwitz. In the 1960s, Hamburger did embryological work that established that chick movements in embryo were spontaneous