In a horrific incident, an owner of a pet spa in Florida has been caught on camera manhandling and abusing a dog.

Briana Brady, a former employee of Happy Puppy Pet Spa, took the one minute video of her boss grooming a dog after she saw another dog leaving the salon with a broken jaw.

In the video posted on 11 November, Phylis Lucca, the owner of the pet spa can be seen putting both her hands around the dog's neck and laying it down on the table.

"This is what this horrible woman does every day to every dog.

"The dog was picked up by the throat, choked, shacked and then his head slammed on the table," Brady said in her Facebook post.

The viral video (contains graphic content and may disturb some viewers) has over 251,000 views.

Brady said she worked at the spa for four weeks prior to posting the video on social media. "It was very hard for me to witness any of that happening," Brady said, according to Fox 4 website.

"She called me threatening me a little bit ago and cussed me out," Brady said in her Facebook post.

In her defence, Lucca said that her actions were not abuse, but were good for the dog's health, Fox 4 reported

"If you see the video, I know it looks bad, but that's not what I'm doing," Lucca said. "What the dog did was pass out and she faints and what I did was hold her head and shake her. That's all."

According to Brady, two weeks prior to the video going viral, a puppy named Pumpkin had left the spa with a broken jaw and bruises all over his stomach.

But Lucca claims that Brady was the one responsible for the dog's injuries. "The only one that was in the room alone, with the dog, was Briana."

However, both Brady and Pumpkin's owner believe the pet spa boss was responsible for the dog's injuries, and added that they will be pressing charges against Lucca.