help, hen has no feathers on back from rooster!

[ChickenTV27]

I have a pair of Salmon Faverolles a rooster and a hen.
The rooster is low on the pecking order and only mates with her and one other hen. He mounts her so often that she has no feathers left on here lower back. I'm concerned and not sure what to do. Winter will be here sooner than we think and i want my hen to be ready for it. I'd like to not separate her if possible because she's low on the pecking order too. Any ideas would be greatly appreciated, thank you

 

[ChickenTV27]

here is her back. There is no infection but some scabbing. I look at it every day.

 

[KaylorFarms]

You could buy a chicken saddle. It goes on their back and when the rooster mates her, he won't pull out the feathers. You can buy them on amazon or ebay