3 Min Read SAO PAULO (Reuters) - Brazilian beef producer Marfrig Global Foods SA tried to acquire control of rival Minerva SA before it announced late on Friday it had bought a stake in poultry and pork processor BRF SA, a person with knowledge of the matter told Reuters on Monday. FILE PHOTO: A worker cuts up joints of beef at the Marfrig Group slaughterhouse in Promissao, 500 km northwest of Sao Paulo October 7, 2011. REUTERS/Paulo Whitaker The source, who requested anonymity to disclose private discussions, said the talks were interrupted last week, after Marfrig took the stake in BRF, due...