FlemishGiant

3 Breed Introduction

The Flemish Giant is the largest domesticated rabbit breed in existence. While still uncommon in the Chinese market, it is kept by many enthusiasts abroad.

Originating in Belgium and later refined through planned breeding programs in the United States, the Flemish Giant is the heaviest of all companion rabbit breeds, with a history tracing back to at least 1860.

Recognized by the American Rabbit Breeders Association (ARBA), the breed comes in seven accepted coat colors, the most common being sandy brown. Adults typically weigh more than 13 kg, are born live (viviparous), and are strictly herbivorous. Mature rabbits measure at least 50 cm in body length with ears no shorter than 14.6 cm; the recorded heaviest individual reached 12.7 kg. The body is heavily muscled and the coat is dense, glossy, and lustrous.

4 Appearance & Physical Traits

The Flemish Giant is a very large rabbit. Although most giant breeds were developed for meat, the Flemish Giant is kept as a companion pet and is best suited to farms or homes with ample space; it remains rare in the Chinese pet market.

Standard weight is around 6 kg, with top weights reaching 13 kg — three to four times heavier than the average pet rabbit under 3 kg, roughly the weight of a three- or four-month-old baby. It has long, large ears (over 5.75 inches) and a long, large body (about 20 inches tall), making for a truly impressive animal. The heaviest on record weighed 28 lb.

Its coat is dense, smooth, and glossy to the touch. ARBA recognizes seven coat colors, though the original sandy-brown remains the most common. Despite a trend toward smaller dwarf and mini breeds, dedicated breeders continue to preserve and refine the giant bloodline, keeping the Flemish Giant a living emblem of the large-rabbit world.

6 Habitat & Living Environment

The Flemish Giant’s most important environmental needs are space and cleanliness. As the largest rabbit breed, it requires far more room than other pet rabbits — not just for sleeping, but for exercise.

Cage cleaning and disinfection: litter-trained rabbits do not need a full daily cage clean, but the resting board (where the rabbit’s feet sit) should be wiped daily with plain water to remove droppings, urine stains, and shed fur. Clean the cage base 1–2 times per week (daily if not litter-trained); disinfect the board and base every 2–4 weeks depending on your setup. Rinse and dry the cage frame with plain water regularly.

Litter box cleaning: empty the rabbit’s litter box daily. Normal droppings are odorless, but urine has a pungent smell that irritates a rabbit’s eyes and respiratory tract, so empty it every day. Absorbent wood or paper pellets help control odor and moisture — but daily emptying also lets you monitor your rabbit’s droppings for early health signs.

Outings: avoid taking young Flemish Giants outdoors. Grass can carry parasites and pesticide residues that cause illness or poisoning if eaten, and free-roaming cats and dogs are a real threat. Keep juveniles safely indoors until they are fully grown.

7 Feeding Guidelines

The Flemish Giant eats enormous amounts and feeds almost continuously as an adult, so food selection and feeding method directly affect its health.

1. Kits (baby rabbits) aged 30–45 days should receive a single-dose rabbit hemorrhagic disease vaccine (1 ml each). Nurse kits once daily, ideally before sunrise when the doe’s milk supply peaks.

2. Juveniles: feed pelleted feed four times daily (6:00, 11:00, 16:00, and before bed). Add small amounts often rather than filling the bowl at once.

3. Kits under about 1 kg should not be given green feed; never let nursing kits eat green feed before weaning.

4. Does with litters and breeding bucks: feed 5 raw peanuts twice daily (morning and evening) to support condition.

5. Never feed only grass without pellets. Pellets should contain 35–50% hay meal (alfalfa is best, followed by peanut vine, bean pods, sweet-potato vine, wild grass, bean straw, and corn stalk; peanut-shell meal is poorest). Trim the roots off peanut vine, as residual soil causes diarrhea.