Well first I would get a full panel Thyroid test done.
You can switch to a Blue Buffalo with fish in it.
We supplement with a organic raw egg everyday, 2,000 mg fish oil or a can of sardines in pure olive oil, Vit. E 400 iu
We also use this home made coat spray you make yourself
It was in Doberman Digest Jan/Feb 2011
Items to get
24oz spray bottle
Listerine (Yes the mouth wash)
Alpha Keri or CVS Shower & Bath Oil
Any Human Hair Conditioner
Filtered or bottled water
A soft Kiwi shoe Brush
Mixture:
Pour in bottle
Liserine 1 in
Alpha Keri or CVS Shower & Bath Oil .5 in
Any Human Hair conditioner 2 in
Add water to top
Mix it up
Spray coat with filtered or bottled water
Wipe with microfiber cloth
Brush thoroughly to stimulate skin and remove flaky skin
Wipe again with microfiber cloth
Spray with coat spray and work into the coat
Brush with soft Kiwi shoe brush
You can do it daily to get coat into condition then weekly to maintain