Introduction: Why Hay and Greens Are Economical and Nutritious
For small herbivores such as rabbits, guinea pigs, chinchillas, and degus, a diet centered on high-quality hay and fresh greens is both affordable and healthful. Hay is a low-cost, high-fiber staple that supports dental and digestive health, while greens provide essential vitamins and hydration. This guide outlines how to feed your pet economically without compromising nutrition.
Recommended Diet Types for Small Herbivores
Hay: The Foundation
Unlimited grass hay (timothy, orchard, brome, or meadow hay) should make up at least 80% of the diet. It is inexpensive, low in calories, and high in fiber. Avoid alfalfa hay for adult pets because of its high calcium and protein content, which can lead to obesity and urinary issues.
Fresh Greens: Daily Supplements
Daily greens (about 1-2 cups per 2-3 kg of body weight) provide variety and nutrients. Leafy greens like romaine lettuce, kale, cilantro, parsley, and dandelion greens are budget-friendly. Rotate types to ensure balanced nutrition.
Limited Pellets
Pellets can supplement but are not necessary if hay and greens are adequate. High-quality timothy-based pellets (1/8 cup per kg of body weight daily) are affordable. Avoid muesli mixes with seeds or colored bits.
Portion Sizes and Daily Calorie Needs
Calorie requirements vary by species, age, and activity. The table below provides general estimates for common small pets.
| Pet | Weight | Daily Hay (unlimited) | Daily Greens | Approx. Calories |
|---|---|---|---|---|
| Rabbit (adult) | 2-4 kg | Unlimited (body-sized pile) | 2-3 cups | 150-300 |
| Guinea Pig | 0.7-1.2 kg | Unlimited | 1-2 cups | 100-200 |
| Chinchilla | 0.4-0.7 kg | Unlimited | 1-2 tbsp (occasional) | 50-100 |
Adjust portions based on activity. More active or young pets may need more greens (but maintain hay dominance).
Feeding Frequency and Timing
Hay should always be available. Greens are offered once or twice daily, preferably in the morning and evening. Remove uneaten greens after a few hours to prevent spoilage. Pellets (if used) are given once daily, at a fixed time.
Essential Nutrients from Affordable Sources
- Protein: Hay provides 8-12% protein; greens add some. Pellets can boost if needed.
- Fat: Low content in hay and greens (1-3%). Essential fatty acids come from a small amount of flaxseed or oats (occasional treat).
- Carbohydrates (Fiber): Critical for digestion. Hay is 30-40% fiber. Greens offer soluble fiber.
- Vitamins: Vitamin C is crucial for guinea pigs (they cannot synthesize it). Offer bell peppers, kale, or cilantro daily. Other vitamins (A, K) come from greens like dandelion and parsley.
- Minerals: Calcium from greens (small amounts) and hay; avoid excess. Phosphorus balanced by oxalates in greens. Low-sodium diet is natural.
Foods to Avoid (Toxic or Harmful)
- Iceberg lettuce (low nutrition, high water)
- Starchy vegetables (carrots, potatoes, corn) only as occasional treats
- Sugary fruits (bananas, grapes) in very small amounts, if at all
- Seeds, nuts, grains (except oats as rare treat)
- Processed human food, chocolate, avocado, onions, garlic
- Any moldy or spoiled hay/greens
Water Intake Requirements
Fresh, clean water must be available 24/7 in a bottle or bowl. A rabbit-sized pet drinks about 50-100 ml per kg daily. Greens provide some water, but always maintain a water source.
Beneficial Supplements (Optional, Budget-Friendly)
- Vitamin C (for guinea pigs): Crush a 100 mg tablet and sprinkle on greens daily.
- Probiotic: Rabbit-safe probiotics (e.g., Benebac) can help during stress or antibiotic use.
- Digestive enzymes (papaya): Occasional papaya bits for hairball prevention.
Most supplements are unnecessary if diet is varied.
Feeding Differences by Life Stage
Juvenile (under 1 year)
Unlimited alfalfa hay (higher calcium for bone growth) and alfalfa-based pellets. Greens introduced slowly after 12 weeks.
Adult (1-5 years)
Switch to grass hay and limited pellets. Greens daily, including variety.
Senior (over 5 years)
Keep hay unlimited; easier-to-chew greens (e.g., soft romaine). Monitor weight; fewer pellets if obese. Continue greens with extra soft options like cilantro.
Signs of Healthy vs. Poor Diet
Healthy Diet Signs
- Active, curious behavior
- Smooth, shiny coat
- Consistent, well-formed fecal pellets (round, golden-brown)
- Normal weight (ribs easily felt but not visible)
- Good appetite for hay
Poor Diet Signs
- Lethargy, weight loss or obesity
- Dull, rough hair coat
- Soft or irregular feces (diarrhea, mucous, oversized pellets)
- Overlong teeth (visible malocclusion)
- Refusing hay; preferring pellets or treats