The injection of fresh blood comes after former Test captain John Wright was appointed head coach this week in a bid to turn around the team's dismal recent form, which included series whitewashes against Bangladesh and India.

Chief selector Mark Greatbatch said the squad, which will be cut to 15 in January, had the potential to be competitive at the World Cup, which begins on February 19 and takes place in India, Bangladesh and Sri Lanka.

"A number of uncapped guys who have excelled domestically made the squad.  We believe it represents the best one-day cricketers we have in New Zealand," said Greatbatch, who was dumped as coach to make way for Wright."There is genuine competition for places as we look to select final 15 for the World Cup and that's exciting."

The new faces in the squad are Brent Arnel, Doug Bracewell, Dean Brownlie,  Adam Milne, Rob Nicol, Luke Woodcock and Reece Young.

Wicketkeeper Young was also named today in a 13-man Test squad for the two-Test home series against Pakistan in January, displacing Gareth Hopkins.

New Zealand's recent one-day form has been hard to take for a nation used to punching above its weight in the 50-over game -- reaching the World Cup semi-finals five times, most recently in 2007.

New Zealand's 30-man squad for the World Cup beginning February 19: Brent Arnel, Hamish Bennett, Doug Bracewell, Dean Brownlie, Ian Butler, Grant Elliott, Daniel Flynn, Martin Guptill, Jamie How, James Franklin, Kyle Mills, Adam Milne, Brendon McCullum, Nathan McCullum, Peter McGlashan, Andy McKay, Rob Nicol, Jacob Oram, Jeetan Patel, Jesse Ryder, Tim Southee, Shanan Stewart, Scott Styris, Ross Taylor, Daryl Tuffey, Daniel Vettori, Bradley-John Watling, Kane Williamson, Luke Woodcock, Reece Young.