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🐹 Guinea pig · size Medium

Rex

Sociable and expressive guinea pig.

Photo · Wikimedia (CC BY-SA 4.0)

Weight

0.8–1.4 kg

Size

Medium

Lifespan

6–8 ans

Energy

Moyen

Maintenance

Faible

Training

Faible

The rex rabbit exhibits a phenotypic characteristic resulting in a coat variation in the domestic rabbit (Oryctolagus cuniculus). This characteristic stems from a spontaneous genetic mutation which, unlike the Angora rabbit, gives individuals a fuzzy, very dense and short coat resembling velvet, composed entirely of fine down 16 to 20 mm high. Since 1929, the rex rabbit has been an official French breed presenting this characteristic.

Compatibility

With childrenApartment

Profile

At a glance

Energy

Modéré

Trainability

Faible

Maintenance

Faible


With children
Apartment

Indicative profile — every animal is an individual.

⚡ Key facts in 30 seconds

L'essentiel

  • 1Medium size (0.8–1.4 kg) — balance between presence and practicality.
  • 2Life expectancy: 6 to 8 years on average, depending on maintenance and diet.
  • 3Moderate energy — 30 to 60 minutes of exercise per day is sufficient.
  • 4Minimal maintenance — little shedding, occasional brushing.

Chapter 1

Getting to know the Rex

Physical

Breed standard

Castorrex, the original large breed Rex rabbit, the large breed in various approved colorings Rex lop, variation with long lop ears Small rex, intermediate size between the large breed and its dwarf variant Dwarf rex, dwarf variation Dwarf lop rex, dwarf variation with lop ears

What if you adopted your future companion?

The Rex of your dreams may already be waiting in a shelter. Hundreds of rex (and equally wonderful crossbreeds) are looking for a family in France — every adoption starts a new story.

Editorial recommendation — no affiliate links.

Âge

What human age for a rex ?

The calculator is already set to the breed's adult size (espérance de vie 6–8 ans). Drag the slider to see the equivalence and corresponding life stage.

3 years
Birth11 years

Equivalent human age

45years

Mature

Metabolism slows down. Monitor weight and early signs of joint stiffness, and have teeth checked.

Estimate: Proportional estimate: a reference life expectancy of 6 years, scaled to an 80-year human life. No reference veterinary table exists for this species.

These equivalences are statistical benchmarks drawn from published veterinary tables. Every animal ages at its own pace, depending on genetics, diet and care. This calculator is neither a diagnosis nor veterinary advice.

Alert

To avoid for guinea pig

Our database lists toxic ingredients and problematic additives by species.

  • PotatoModerate
  • caffeineLow
  • titanium dioxideHigh
  • rhubarbHigh

Calculator · daily ration

How much to give a rex ?

Estimate based on the veterinary formula RER × DER, adjusted for guinea pig. Adjust according to package recommendations.

1.1 kg
0.8 kg1.54 kg
Moderate

Result

22 g

per day · 83 kcal

11 g / repas (2 par jour)

Calculation for food of 380 kcal/100g.

For an exact calculation for your Rex (breed, age, allergies, health conditions): create a free account

Appears in

Rex in our rankings

FAQ

Frequently asked questions about Rex

How long does a Rex live?+
Average life expectancy: 6 to 8 years with appropriate diet and enriched environment.
Can a Rex live in an apartment?+
Yes, provided you plan a sufficiently large enclosure and daily supervised free time.
Is the Rex suitable for children?+
Yes, it is an ideal companion for children, provided they learn to handle them gently.

If you like this guinea pig

Breeds with similar profiles

For more information

Sources & official links

Supplementary documentation on reference sites — breed clubs, encyclopedias, veterinarians.

The right score for your Rex.

SokoScan calculates a personalized PawScore based on breed, age, weight and your pet's sensitivities. Free, instant.