Failing to load zone file after upgrade to 9.4.2

[Chris Dibble]

A recent upgrade of Bind 9.2.2 to 9.4.2 has yielded the following
errors:
21-Jan-2008 08:46:15.527 general: info: zone
0.0.127.in-addr.arpa/IN/internet: loaded serial 1995101201
21-Jan-2008 08:46:15.530 general: warning: master/chicken.zone:96: TTL
set to prior TTL (600)
21-Jan-2008 08:46:15.531 general: warning: master/chicken.zone:374:
warning: '174.94.233.20': MX is an address
21-Jan-2008 08:46:15.532 general: error: master/chicken.zone:542:
//.chicken.ab.ca: bad owner name (check-names)
21-Jan-2008 08:46:15.532 general: error: zone chicken.ab.ca/IN/internet:
loading from master file master/chicken.zone failed: bad
 owner name (check-names)
21-Jan-2008 08:46:15.533 general: notice: running

Im particularly concerned about: "bad owner name (check-names)". Is
there anyone that might have an idea what is causing it to choke?

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