Its Suffolk factory at Bury St Edmunds has about 50 people and makes pig and poultry compound feed for the farming industry. An AB Agri spokesman said: "We have taken an incredibly difficult decision about the future of our UK monogastric compound feed business, ABN. ABN operates as a specialist compound feed manufacturing division of AB Agri. "It will be a concern to lose such a key feed supplier but we don’t know what’s going to happen at this stage. A company decision to explore all options - including potential sale of Bury St. Edmunds - was announced in January .