There are a number of reasons why horses may have poor quality hooves. 
These include:

• Genetics
• Bad farriery
• Dietary reasons
• Their environment
• The work that they do

Certain nutrients are said to be of use in helping a horse’s hoof growth.  These include the following:

• Biotin – this is a water soluble B vitamin which is one of the most popular ingredients found in supplements for hoof growth and health. It is manufactured naturally when fibre is broken down in the large intestine.  The horse may not produce enough of this naturally if their diet is lacking in certain foods.
• Zinc – this is needed to support healthy hair, skin and hooves. It supports healthy keratin growth (keratin is the material found in the outer layers of the hoof).  If the keratin is not formed correctly, the hoof is brittle and soft.
• Calcium – this is essential for bone development and attachments in the hoof horn.
• Methionine – another nutrient recommended for hoof growth and quality.  It is a sulphur containing essential amino acids.

Other nutrients associated with hoof quality are:

• Manganese
• Copper
• Vitamins A and E

The overall condition of the horse and the quality of his diet are also important when it comes to supporting hoof health and condition. If you need advice relating to the condition of your horse’s hooves, speak to you farrier and also consider calling any of the free feed helplines as the nutritionists at the various companies will be happy to offer advice.