May 28 (Reuters) - The following bids, mergers, acquisitions and disposals were reported by 1000 GMT on Tuesday:
** Rosneft, Russia's top oil producer, is buying out the 49 percent stake in gas company Itera owned by founder Igor Makarov for around $3 billion, the Kommersant daily reported on Tuesday, citing sources.
** Norwegian fish farmer Marine Harvest will go ahead with its hostile $1.7 billion bid for local rival Cermaq if current talks with management and key shareholders fail, the company said on Monday.
** Valeant Pharmaceuticals International said on Monday it agreed to buy Bausch & Lomb Holdings Inc from Warburg Pincus LLC for $8.7 billion, a cash deal set to vault the Canadian company into the upper ranks of the global pharmaceutical sector.
** Club Mediterranee's top shareholders plan to take over the French holiday firm in a bid that values it at around 541 million euros ($700 million), to accelerate its shift to fast-growing emerging markets.
** AstraZeneca is to buy Omthera Pharmaceuticals for as much as $443 million to build up its cardiovascular drug business, a priority area for Britain's second-biggest drugmaker, sources said on Tuesday.
** Britain's Crown Estate has signed a 320 million pound ($483 million) joint venture with Canada's Oxford Properties to redevelop London's upmarket St James's Market district, the two companies said on Tuesday.
** Russia's Altimo failed to secure a majority stake in Egypt-based Orascom Telecom by a Monday deadline and said it was ready to take a smaller interest in the company if Egypt's financial market regulator allows.
** Deutsche Telekom is considering buying Poland's GTS Central Europe for 600 million euros ($775 million) as part of plans to strengthen its position in eastern Europe, the Wall Street Journal Deutschland reported on Monday.
** A unit of Chilean retailer Falabella has inked a deal to buy a 50.1 percent slice of Brazilian home improvement chain Dicico for 388 million reais ($189 million), the Andean company said on Monday evening.