BOCA RATON (CBSMiami) – More than a third of the 140 dogs found in the back of a U-Haul truck in Tennessee earlier this month will be flown to South Florida where they will be put up for adoption.

The 50 dogs will be flown in Wednesday night and put up at the Tri-County Humane Society shelter in Boca Raton.

The dogs were discovered in the back of the truck in Fayette County last Tuesday during a traffic stop. Investigators said the dogs probably hadn’t been fed or walked in day and were living in filth. A week later, they’re doing much better and are ready for adoption.

“We are finally seeing major improvement in the animals that were so frightened when we first saw them, every single dog goes out twice a day for a walk, they absolutely love it,” said Tracy Reis with the American Humane Association.

“There’s a one hundred percent difference, The first thing I noticed when I walked into this shelter was the smell and it was a wonderful smell, it’s a smell of cleanliness,” said Gina Thweatt who was one of the first animal rescuers on the scene last week. “Some of the dogs I saw I’ve been worrying about and to see them looking better is just thrilling.”

Rescuers can’t comment on the medical condition of the dogs as that is part of the criminal case. The woman who was driving the U-Haul and a female companion are now charged with felony animal cruelty case. If convicted, each faces up to years in prison.