Poker Stars, $0.10/$0.25 No Limit Hold'em Cash, 6 Players
Poker Tools Powered By Holdem Manager - The Ultimate Poker Software Suite.

SB: $21.15 (84.6 bb)
BB: $26.48 (105.9 bb)
UTG: $34.82 (139.3 bb)
MP: $41.17 (164.7 bb)
Hero (CO): $38.70 (154.8 bb)
BTN: $29.65 (118.6 bb)

Preflop: Hero is CO with 5 A
UTG raises to $0.62, MP calls $0.62, Hero raises to $3, 3 folds, UTG calls $2.38, MP folds

Flop: ($6.97) A J 7 (2 players)
UTG checks, Hero bets $2.20, UTG calls $2.20

Turn: ($11.37) 5 (2 players)
UTG checks, Hero bets $8.15, UTG calls $8.15

River: ($27.67) 6 (2 players)
UTG checks, Hero bets $25.35 and is all-in, UTG calls $21.47 and is all-in

Results: $70.61 pot ($2.00 rake)
Final Board: A J 7 5 6
UTG showed J J and won $68.61 ($33.79 net)

Hero showed 5 A and lost (-$34.82 net)

Should I push River for thin value?
Villian is average NL25 reg