Star of “1000-Lb Sisters” Amy Slaton needed a stretcher after being bitten by a camel at a Tennessee zoo, according to police … and her wound was wrapped in a makeshift bandage.

TMZ obtained photos of Amy leaving the Tennessee Safari Park at Alamo on a stretcher on Monday… looking like she’s in pain and wearing a piece of clothing as a tourniquet.

People who were there said they saw Amy walking through the parking lot with a shirt around her arm … before paramedics helped put her on a stretcher.

To make matters worse, after all of this, Amy was arrested… because police told us that officers found psychoactive mushrooms and marijuana in her car… and we were told the drugs were in plain sight.

As we reported, Amy caught for illegal possession of Schedule I and VI drugs…plus two counts of endangering a child following a wild Labor Day at the zoo.

Police told us Amy had two children in the car…She was charged with both counts of child endangerment because of the drugs.

Tennessee Safari Park offers a driving safari and a walk-through zoo where visitors pay to feed exotic animals such as camels and giraffes.

Police say Amy was bitten by a camel, but one of the owners of Tennessee Safari Park, Jon Conleytells TMZ … it’s impossible that she was bitten by one of her camels, and the cut above her elbow does not indicate a camel bite since the skin is torn and there is no bruised tissue.

Conley says the park has thousands of visitors each year and no one has ever been bitten by a camel… and the zoo couldn’t find any surveillance video to back up Amy’s claim that a camel bit her. Jon also says Amy can’t explain where in the park she was allegedly bitten.

After being taken away on a stretcher and taken to a hospital for further treatment, police say Amy was hauled off to jail for arrest…where she posed for a mugshot.