Deals of the day- Mergers and acquisitions
(Adds Yum Brands, General Motors, FedEx, Merck, United Technologies Corp, Bank Hapoalim, PMC-Sierra, Actelion, AmSurg Corp and Lockheed Martin)
Oct 20 (Reuters) - The following bids, mergers, acquisitions and disposals were reported by 1600 GMT on Tuesday:
** PMC-Sierra Inc said Microsemi Corp's $2.2 billion unsolicited offer for the chipmaker could lead to a "superior proposal". Microsemi's offer on Monday trumps a $2 billion bid from Skyworks Solutions Inc.
** AmSurg Corp proposed a $5.3 billion merger with TeamHealth Holdings Inc as it looks to add heft to its business that provides doctors to hospitals and other healthcare services.
** KFC owner Yum Brands Inc said it plans to split off its China business, which has been besieged by food scandals and marketing missteps, bowing to pressure from an activist shareholder.