MOSCOW, March 29 (Reuters) - Russia wants to borrow more in the second quarter this year, and it plans to implement a new bond-offering mechanism and take advantage of growing global demand for its debt, a senior ministry official said.

After months of uncertainty related to possible new U.S. sanctions on holdings of Russian debt, demand for OFZ treasury bonds soared this year. That's led the finance ministry to rethink how it raises money for its budget needs.