Key Takeaways & Summary
- Adult rabbits require 80%–85% unlimited Timothy or Orchard grass hay daily to prevent fatal GI stasis and molar spurs.
- Fresh leafy greens should be portioned at 1 packed cup per 2 lbs of body weight; fortified pellets must stay under 5%.
- Zero fecal output or refusal of greens for 8 to 12 hours is a life-threatening exotic veterinary emergency.
- PetHorizon Small Pet profiles let families log daily hay refills, greens, and litter output.
Domestic rabbits possess a specialized hindgut fermentation digestive tract that requires continuous fiber movement to survive. Unlike dogs or cats, a rabbit whose gut slows down for even 12 hours faces life-threatening Gastrointestinal (GI) Stasis. This exotic veterinary guide details the 85% grass hay ratio, safe daily leafy greens, pellet gram limits, and how PetHorizon tracks daily hay and fecal output.
The Veterinary Rabbit Food Pyramid: Why 85% Must Be Grass Hay
A rabbit’s open-rooted hypsodont teeth grow continuously at 2 to 3 millimeters per week. Grinding long-strand grass hay wears down molars evenly while driving indigestible fiber through the cecum.
Adult rabbits (over 7 months old) require unlimited, 24/7 access to fresh Timothy, Orchard, or Meadow hay—comprising 80% to 85% of their total dietary intake. Alfalfa hay is legume-based and overly high in calcium and protein; it should be reserved strictly for growing kits under 6 months or nursing does to prevent bladder sludge and uroliths.
Fresh leafy greens (Romaine lettuce, cilantro, parsley, dandelion greens, bok choy) should make up 10% of the daily diet, measured at roughly 1 packed cup per 2 lbs (0.9 kg) of body weight. Fortified Timothy-based pellets must be restricted to 5% (1/8 to 1/4 cup daily for an average 5 lb rabbit).
| Life Stage | Hay Type & Allocation | Daily Leafy Greens | Fortified Timothy Pellets |
|---|---|---|---|
| Young Kit (Under 6 Mos) | Unlimited Alfalfa + Timothy Hay | Introduce 1 green slowly at 12 wks | Unlimited plain pellets for bone growth |
| Adult Rabbit (7 Mos – 5 Yrs) | Unlimited Timothy / Orchard (85%) | 1 cup per 2 lbs body weight daily | 1/8 to 1/4 cup (approx. 15g–25g) daily |
| Senior Rabbit (6+ Years) | Unlimited Timothy / Oat Hay | 1 cup per 2 lbs body weight daily | Adjust grams in PetHorizon to maintain weight |
Recognizing & Preventing Gastrointestinal (GI) Stasis
GI stasis occurs when intestinal peristalsis slows or halts due to low fiber intake, dehydration, dental spurs, or acute stress—allowing gas-producing pathogenic bacteria (*Clostridium* spp.) to proliferate.
- Fecal Pellet Monitoring: Healthy rabbit droppings are large, round, uniform, and fibrous. Suddenly smaller, tear-drop-shaped, or absent fecal pellets are the earliest clinical warning sign.
- Posture & Tooth Grinding: A hunched posture, pressing the abdomen to the floor, refusal of favorite greens, or loud tooth grinding (bruxism) indicates acute visceral pain.
- Hydration Bowl vs. Bottle: Heavy ceramic water bowls increase daily water consumption by up to 30% compared to ball-bearing sipper bottles.
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