My horse has been doing well on healthy edge by Purina for about 1 1/2 - 2 years now. Great coat and feet. Well I've switched barns and his feet have started chipping (it's wet season so expected that) but his coat is rough.. not all over him just on his neck and flank back. He's been wormed. Only diet change is grass 24/7 and biotin supplement. He's been sun bleached pretty bad, could that also make his coat rougher?
So sorry for the long story. Just worried about him. Done a little research and only came up with a copper deficiency? Thanks in advance!