Coat Change Disorders
The coat change is a metabolically intensive phase; a sluggish, delayed or incomplete change can indicate increased nutrient demand, metabolic strain or an underlying disease. In older horses, a delayed coat change is a classic warning sign of PPID (Cushing).
Priority · vet & management
The basis is needs-based feeding and good coat care; with a delayed coat change, long/curly coat or hypertrichosis in the older horse, veterinary PPID clarification (ACTH) is indicated. Compounds are only adjunctive.
Possible causes
- · increased nutrient and energy demand during the changing phase
- · mineral/trace element imbalances (e.g. zinc, copper) — what matters is the ratio, not the single amount
- · scarce supply of sulphur-containing amino acids (methionine, cysteine) as keratin building blocks
- · liver/metabolic strain
- · disturbed light rhythm from long stable lighting
- · PPID (Cushing) as a common cause in the older horse
Supportive compounds · supplementary feed, not medication
Zinc
AMGFEI freecofactor for skin/keratin and coat metabolism
Compound profile →Biotin
AMGFEI freeB-vitamin for skin and coat metabolism
Compound profile →Linseed
AMGFEI freeomega-3 for the skin barrier and coat shine
Compound profile →Brewer's yeast
AMGFEI freeB-vitamins, traditionally used during the coat change
Compound profile →Milk thistle
AMGFEI freeliver support during the metabolically intensive change phase (traditional)
Compound profile →Prevention
Demand-appropriate mineral/trace element supply and good management during the changing phase support a smooth coat change; in seniors watch for signs of PPID.
Equiterna's take
Equiterna reads a disturbed coat change as a metabolic signal — in the older horse always with an eye on PPID, not just as a coat-care topic.
Usage note
This content is for information and education. It does not replace veterinary diagnosis or treatment. If your horse shows signs of illness, consult a veterinarian.
Equiterna is an intermediary platform for equine knowledge, marketplace and tools — not a veterinary-medicines dealer, veterinary practice or pharmacy. Compound information is study-attributed and free of healing claims. Legal framework: Regulation (EU) 2019/6 / TAMG (DE/AT), Feed Regulation (EC) 767/2009, FEI Prohibited Substances List, HWG.