Did I under bet the river

[syka16]

When I made the bet, I thought that the f/d would discourage him from calling all in. Or perhaps he would lay down a weak Q. But now I figure there is no way he's laying down a Q and he might have been on a f/d. Does anyone else think I should have pushed on the river?

***** Hand History for Game 2879371822 *****
NL Texas Hold'em $50 Buy-in + $5 Entry Fee Trny:16538294 Level:2 Blinds(15/30) - Tuesday, November 15, 21:26:44 EDT 2005
Table Table 16926 (Real Money)
Seat 2 is the button
Total number of players : 9
Seat 7: RekaSyka7 ( $1305 )
Seat 2: champshere23 ( $1350 )
Seat 3: riphosey ( $2335 )
Seat 10: ruinatotal ( $860 )
Seat 8: mdp1975 ( $1230 )
Seat 4: cmikesoup9 ( $855 )
Seat 6: Mrfullboat ( $585 )
Seat 1: atk101 ( $1070 )
Seat 5: sputnick1 ( $410 )
Trny:16538294 Level:2
Blinds(15/30)
** Dealing down cards **
Dealt to RekaSyka7 [ Qd Kd ]
sputnick1 calls [30].
Mrfullboat folds.
RekaSyka7 calls [30].
mdp1975 folds.
ruinatotal folds.
atk101 folds.
champshere23 folds.
riphosey calls [15].
cmikesoup9 checks.
** Dealing Flop ** [ 5s, 9c, Qc ]
riphosey checks.
cmikesoup9 checks.
sputnick1 checks.
>You have options at Table 14213 Table!.
RekaSyka7 bets [80].
riphosey folds.
cmikesoup9 calls [80].
sputnick1 folds.
** Dealing Turn ** [ Qs ]
cmikesoup9 checks.
RekaSyka7 bets [200].
cmikesoup9 calls [200].
** Dealing River ** [ Kc ]
cmikesoup9 checks.
RekaSyka7 bets [225].
cmikesoup9 calls [225].
RekaSyka7 shows [ Qd, Kd ] a full house, Queens full of kings.
cmikesoup9 doesn't show [ 3c, Ac ] a flush, ace high.
RekaSyka7 wins 1130 chips from the main pot with a full house, Queens full of kings.