Zinc supports over 300 enzyme reactions in your rabbit's body, playing key roles in immune defense, skin and coat health, wound healing, and reproductive function. It is particularly important for maintaining the integrity of the skin barrier and supporting a dense, healthy fur coat. Zinc is present in hay, greens, and seeds, though plant-based zinc can be less bioavailable due to phytates that partially block absorption. A varied diet helps ensure adequate intake.
A tablespoon of rolled oats (about 10g, offered as a rare treat) provides roughly 0.3mg of zinc — your adult rabbit needs approximately 2.5 to 5mg of zinc per day (about 25 to 50mg per kilogram of diet), which is met through the combined intake of timothy hay, leafy greens, and a small pellet ration.
0.01% of daily nutrient intake
Zinc makes up 0.01% of your domestic rabbit's total daily nutritional requirements by weight. That's a tiny amount — but it matters.
Rough or thinning coat, flaky or crusty skin (especially around the face and ears), slow wound healing, reduced appetite, poor growth in young rabbits, and increased susceptibility to skin infections.
Zinc excess from food sources is very rare. High-dose zinc supplements could interfere with copper absorption, but this is not a concern from a normal diet of hay and greens.
| Life Stage | Size | Min | Max | Unit | Notes |
|---|---|---|---|---|---|
| Adult | — | 2.5 | 5 | mg | About 25-50mg per kilogram of diet. Supplied by hay, greens, and pellets. |
Source: NRC 1977, general veterinary consensus
Excess calcium can interfere with zinc absorption by competing for transport proteins in the intestine. Given that rabbits absorb all dietary calcium, high-calcium diets may reduce zinc availability.
What this means: Another reason to moderate calcium intake in adult rabbits. Rotating high-calcium and low-calcium greens helps keep both minerals in balance and prevents zinc depletion.
Zinc and copper compete for the same absorption pathways in the intestine. Excess zinc can block copper absorption and vice versa, potentially leading to deficiency in one mineral despite adequate dietary levels.
What this means: This is rarely a concern for rabbits on a normal hay-and-greens diet, since both minerals are present in balanced amounts. Avoid giving mineral supplements unless prescribed by a veterinarian.
