Temeka Johnson led LSU (9-0) with 15 points, all coming in the first half on 7-of-8 shooting, and Seimone Augustus added 12 points.
Twelve of the 14 Lady Tigers who got into the game figured in the scoring, with Ke-Ke Tardy and Patty Hanten contributing nine points a piece.
Despite a 65.5 percent shooting performance from her team, LSU head coach Sue Gunter said she was concerned with the number of offensive rebounds Southwest Texas recorded. The Lady Tigers held a 37-35 overall rebounding edge, but the Bobcats battled inside with 24 offensive boards.
"It is really ridiculous that we are not doing a better job boarding," said Gunter. "It is going to reach up and it going to bite us if we do not get better at it."
Southwest Texas (1-7) was not able to keep the score as close as the rebounding battle thanks to 25.9 percent shooting for the game. Aleise Johnson and Julie Brooks led the visitors with 10 points.
The game was the first as a Lady Tiger for Crystal White, a sophomore transfer from Duke who gained her eligibility following the recently completed fall semester. She led LSU with four blocks and recorded a steal immediately after being inserted into the game in the first half. She finished the game with 4 points and three rebounds.
"I was just excited to be out there," said White. "For my first game, it was just exciting to be able run out onto the court with a chance to play."
LSU already had a 16-point lead when White came into the game and help the Lady Tigers add to it with a steal that was converted into a layup for Wendlyn Jones. On the next SWT possession, White recorded her first block and Ke-Ke Tardy drove for a basket on the turnover. It gave LSU a 31-11 lead at the 11:56 mark of the first half.
The Lady Tigers scored 33 points off 29 Bobcat turnovers and also held a 43-12 bench scoring advantage. No LSU starter played longer than 18 minutes in the game, while Kisha James came off the bench and led all players with 24 minutes of action.
"I liked the distribution of minutes and the play that we got out of our people coming off the bench," said Gunter, who recorded career win No. 394 at LSU.
After LSU built a 61-25 halftime lead, it took Southwest Texas 6:45 to record its first basket of the second period. In the interim, the Lady Tigers scored 13 unanswered points. The next scoring from the Bobcats would be a free throw from Mercey Okorie with 8:14 left to play, by which time LSU had built an 80-28 lead.
A layup from Brooks with 6:32 remaining marked the start of a 10-8 run for Southwest Texas, the closest thing to a rally the Bobcats could muster down the stretch.
The Lady Tigers will break briefly for the holidays and return to action next Saturday against No. 22 Texas. The game is scheduled for 2 p.m. at the Maravich Assembly Center.