Creating DNS records via the ActiveDirectory driver should set the TTL:

Add-DnsServerResourceRecordA -ComputerName "ny-dc01" -ZoneName "internal" -Name "pingdomcheck.stackoverflow.com" -IPv4Address "10.10.10.10" -TimeToLive 123

It should only be included if the TTL value is non-zero and not 300 (or the default TTL for this zone).