Nigeria sought to draw a line under decades of corruption last week when President Olusegun Obasanjo declared his private income, disclosing that he makes £140,000 a month from a chicken farm. Mr Obasanjo, the first Nigerian leader to declare his assets, told a bemused nation that his farm in Otta state yields annual profits approaching £1.7 million. The president's spokesman, said his declaration was part of a government campaign to clean up Nigeria.