Ginnie Mae mortgage-backed securities issuance fell in the first quarter of 2015 with FHA volume slipping during the period, according to an Inside FHA/VA Lending’s analysis of agency data.Ginnie MBS production in the first quarter totaled $79.8 billion, down from $80.6 billion in the 4Q14, despite a 29.3 percent increase from February to March. On the other hand, production was up 41.6 percent from a year ago.FHA-backed Ginnie MBS issuance dropped 3.1 percent in the first quarter from 4Q14, ending the period with $39.9 billion. Year-over-year volume rose 22.0 percent from the previous year. On the other hand, refinancing increased to $12.3 billion from $7.8 billion during the same stretch. VA securitization totaled $35.5 billion, up from $33.6 billion quarter-over-quarter, powered by refinance loans. Rural housing securitization totaled $4.2 billion in the first quarter, down from $5. 7 billion in 4Q14. Securitized FHA purchase loans rose 7.7 percent in March from February, while ... [3 charts].