Why Light Matters for Rabbit Growth

1 How Rabbits Depend on Light

Light is a natural factor a rabbit cannot do without, and long-haired rabbits depend on it most — the length and intensity of light strongly affect their fleece yield. Moderate light aids growth and speeds fur, so every rabbit, caged or free-range, needs enough of it. In rainy spells or short winter days, add artificial light to keep metabolism and development on track.

Natural and artificial light differ in both need and effect. Long-haired rabbits under moderate natural light out-yield those in poor light by about 18%; under moderate artificial light they out-yield natural-light rabbits by roughly 35%. Long-haired rabbits want more light, and a bigger window area suits them. Caged meat rabbits are often under-lit, yet they still need adequate light — just not too bright or too large a window. To save energy and add weight, meat rabbits should move little, so their windows should open during feeding and close after, for restful sleep.

2 Managing Light

Generally use natural light as the main source with artificial as backup. Breeding does need about 16 hours of light, so make up the shortfall — before sunrise or after sunset — according to local daylight. Moderate light also helps hygiene and health, so let rabbits out for sun and a little exercise per their breed’s needs, but cap the time, especially in summer, to prevent heatstroke and dehydration.