NEW YORK (AP) -- Advisory firm Proxy Governance on Monday recommended shareholders of freight railroad CSX Corp. support two out of five board contenders nominated by a group of dissident shareholders.

The firm said that while it does believe the current board has delivered strong results, it said it sees a benefit in adding more directors with railroad operating experience, as pushed for by activist hedge fund shareholders TCI and 3G Capital.

It recommended shareholders elect 3G Managing Director Alexandre Behring and Gilbert Lamphere, managing director of private investment firm Lamphere Capital Management and a former director at Canadian National Railway Co.

The other three TCI nominees are TCI Founder Chris Hohn, London Underground Managing Director Timothy O'Toole and Gary Wilson, a former chairman at Northwest Airlines Corp.

Another proxy adviser, Egan-Jones Proxy Services, recommended that shareholders re-elect all of the CSX nominees.

"The Egan-Jones recommendation reaffirms our belief that we have the right board in place to continue driving sustainable shareholder value creation at CSX," the freight railroad company said in a prepared statement.

CSX shares fell 29 cents to close at $65.13.