Definition

Zinc (Zn) is an essential trace mineral for horses, involved in numerous physiological processes. It plays a critical role in maintaining healthy skin, hooves, and hair, and is a key component of enzymes that regulate oxygen transfer and support protein and carbohydrate metabolism.

Importance

Zinc is vital for:

• Skin and hoof health: Contributes to the structure and function of skin, hooves, and hair.
• Metabolic processes: Supports enzymes involved in energy metabolism.
• Immune system development: Promotes wound healing and strengthens defence against infections.
• Reproductive health: Essential for stallions to produce active sperm and maintain testosterone levels.

Deficiency symptoms

A lack of zinc can lead to:

• Disrupted bone development
• Decreased appetite
• Overproduction of hoof material
• Altered skin structure and hair loss
• Stunted growth in young horses
• Clinical signs such as mug, a dull coat, or summer eczema

Excess zinc

An excess of zinc is rare but can cause fractures around the hooves. However, such cases are almost non-existent under normal feeding conditions.

Role in equine health

Zinc is indispensable for overall health, growth, and performance in horses. Balanced zinc intake ensures strong hooves, healthy skin, robust immunity, and optimal reproductive function.

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