Peruvian Guinea Pig
Breed Description

The Peruvian Guinea Pig ranks among the oldest and most recognizable long-haired guinea pig breeds, named for the South American country associated with guinea pig domestication rather than being specifically developed there. This spectacular variety features a floor-length coat that grows continuously, creating a dramatic flowing appearance that has captivated cavy enthusiasts for over a century.

Within the guinea pig fancy, this breed is known simply as Peruvian or Peruvian Cavy. The scientific name Cavia porcellus applies to all domesticated guinea pig varieties, with "Peruvian" describing this specific long-haired type. When the Peruvian coat mutation combines with the satin gene (producing glossy, hollow hair shafts), the variety is called Peruvian Satin.

The Peruvian is recognized by guinea pig registries worldwide as one of the original long-haired breeds, with detailed show standards specifying coat length, density, texture, and presentation. Show Peruvians may display coats exceeding 20 inches in length, requiring extensive preparation including wrapping (protecting the coat in paper or fabric rolls) between shows. Pet Peruvians are often kept in shorter trims for comfort and practicality while still displaying the breed's characteristic flowing coat direction.

The Peruvian Guinea Pig presents the compact, cobby body typical of the species, though this structure is largely hidden beneath dramatic flowing hair. Adults measure 8-10 inches in body length and typically weigh between 1.5 and 2.5 pounds, with boars (males) generally outweighing sows (females) by 10-15%. Beneath the coat lies the standard guinea pig conformation with broad head, large eyes, and Roman nose profile.

The defining characteristic of Peruvian Guinea Pigs is their extraordinary coat, which grows continuously to floor length and beyond in show specimens. Unlike the Silkie whose hair flows backward from the face, the Peruvian's coat grows forward over the head as well as backward and to the sides, creating a dramatic all-direction flow. A mature show Peruvian appears as a flowing mass of hair with the pig nearly invisible beneath.

The Peruvian coat features two rosettes (hair growth centers) positioned on the lower back/hip area. From these rosettes, hair radiates outward in all directions—forward over the head creating a distinctive forelock or fringe, backward toward the rear, and down the sides. This growth pattern, combined with continuous hair growth, produces the characteristic sweeping appearance where the hair may trail on the ground.

Coat texture in Peruvians should be silky and smooth, flowing freely without tendency toward waviness or curling. Hair density varies but should be sufficient to create full coverage without thin or sparse areas. Show standards emphasize even length throughout, smooth texture, and proper rosette placement creating symmetrical sweep patterns.

Peruvians appear in the full range of guinea pig colors and patterns including solid colors (self), agouti, tortoiseshell, Dutch, Himalayan, and multi-colored combinations. The long, flowing coat showcases color beautifully, with multi-colored Peruvians displaying dramatic sweeps of contrasting hues. Show presentation often involves careful arrangement of the coat to display color and coverage optimally.

Peruvian Guinea Pigs typically display sweet, gentle temperaments that complement their elegant appearance. Their calm dispositions suit the extensive handling required for daily grooming, and many Peruvians seem to enjoy grooming sessions as bonding time with their owners. With patient socialization, they form strong attachments to dedicated caregivers.

As prey animals, Peruvian Guinea Pigs retain instinctive wariness common to all guinea pigs. New arrivals may be initially skittish, requiring time and positive experiences to build trust. Their long coats can make them feel more vulnerable, as vision may be partially obscured by forelock hair. Some owners trim the facial hair to improve visibility and reduce stress, particularly for pet Peruvians.

Guinea pigs communicate through extensive vocalizations that Peruvians employ fully. The characteristic wheek signals excitement about food or owner arrival. Purring indicates contentment during grooming and handling—a sound Peruvian owners hear frequently during daily coat care. Social chattering maintains communication among cagemates, while rumblestrutting appears during courtship and social hierarchy interactions.

Daily activity in Peruvian Guinea Pigs follows typical crepuscular patterns with peak activity at dawn and dusk, though they adapt to household schedules. Their long coats may somewhat limit vigorous running compared to short-haired varieties, but healthy Peruvians still enjoy exploration during supervised floor time. Care must be taken that coats don't catch on obstacles during play.

Popcorning behavior, while potentially restricted by heavy coats in full-length show Peruvians, still appears in happy individuals—particularly those kept in practical pet trims. These spontaneous leaps of joy indicate contentment and should be encouraged through enriching environments and positive experiences. Young Peruvians with shorter coats popcorn more readily than heavily-coated adults.

Housing Peruvian Guinea Pigs presents unique challenges due to their extraordinary coats. While space requirements match other guinea pigs—minimum 7.5 square feet for one pig, 10.5 square feet for two—additional considerations apply to protect and maintain their flowing hair. Clean, well-designed housing significantly reduces grooming burden while keeping Peruvians comfortable.

C&C (cubes and coroplast) cages work well for Peruvians, offering customizable sizing and smooth surfaces that won't catch or tangle hair. Avoid cages with wire components at coat level, as long hair easily tangles in wire grid. The coroplast base should have high enough sides to contain bedding while allowing easy entry and exit without dragging coats through soiled areas.

Bedding selection critically impacts Peruvian coat maintenance. Fleece liners represent the best option, providing soft surfaces that won't tangle in long hair while wicking moisture away to absorbent underlayers. Paper-based bedding can work but may stick to coats. Loose substrates like shavings, while acceptable for short-haired varieties, tangle badly in Peruvian coats and should be avoided. Whatever bedding is chosen, cleanliness is paramount—soiled bedding ruins coats quickly.

Environmental enrichment must be coat-conscious for Peruvians. Hiding houses should have smooth interiors and wide entrances that won't catch hair. Avoid hay racks with small openings where hair can tangle; instead, provide hay in piles or wide, smooth containers. Tunnels work only if smooth-sided and wide enough to prevent coat dragging on sides and ceiling.

Temperature management holds special importance for Peruvians, as their thick coats provide significant insulation. Maintain temperatures between 65-75°F, erring toward the cooler end of this range. Peruvians may overheat more readily than short-haired varieties, making air conditioning essential during warm weather. Watch carefully for signs of heat stress including lethargy and sprawling.

Floor time requires supervision and preparation. Create a clean, smooth-surfaced area free from objects that could catch or soil the coat. Some owners place Peruvians on clean towels or blankets during floor time to protect coats from floor debris. Keep sessions active but controlled, as dragging coats pick up everything in their path.

Nutrition fundamentally impacts Peruvian Guinea Pig health, with proper diet supporting both overall wellness and the spectacular coat that defines this breed. Like all guinea pigs, Peruvians cannot synthesize vitamin C internally, making daily supplementation essential. Scurvy develops within 2-3 weeks without adequate vitamin C intake.

Timothy hay should comprise approximately 80% of the diet, available in unlimited quantities at all times. Hay provides essential fiber for digestive health and necessary dental wear for continuously growing teeth. For Peruvians, hay presentation matters—use wide containers or piles rather than racks where hair might tangle while eating. Young pigs and pregnant or nursing sows benefit from alfalfa hay before transitioning to timothy at maturity.

High-quality guinea pig pellets supplement the hay foundation. Choose plain timothy-based pellets fortified with vitamin C (though not relying on this as the sole source). Some breeders recommend pellets formulated for long-haired guinea pigs, which may contain additional nutrients supporting coat health. Feed approximately 1/8 cup daily per adult pig.

Fresh vegetables provide essential vitamin C and contribute to coat condition through proper nutrition. Bell peppers remain the premier vitamin C source at 100-200mg per pepper. Other excellent options include romaine lettuce, cilantro, parsley, and dark leafy greens. Vegetables rich in omega fatty acids and vitamins support healthy hair growth and shine. Avoid dangerous foods including potatoes, onions, and iceberg lettuce.

Daily vitamin C requirements range from 10-20mg for healthy adults to 30-50mg for pregnant or nursing sows. Vitamin C tablets (human children's chewable or guinea pig specific) ensure adequate intake regardless of vegetable consumption variations. Never add vitamin C to water, as it degrades quickly and affects taste.

Clean water must be continuously available. Consider bottle placement carefully for Peruvians—position bottles to minimize coat contact with wet spouts. Some owners find water bowls problematic as Peruvians may drag coats through them while drinking. Whatever system is used, ensure adequate hydration while protecting coat condition.

Peruvian Guinea Pigs share the general health profile of domesticated guinea pigs, with additional considerations related to their extensive coats. With excellent care, they typically live 5-7 years. Coat-related issues represent the primary health concern unique to this breed—matting, skin problems from poor coat hygiene, and heatstroke risk require vigilant prevention. As prey animals hiding illness, daily observation during grooming provides excellent health monitoring opportunity.

Finding a veterinarian experienced with guinea pigs—and ideally with long-haired breeds specifically—before emergencies arise ensures appropriate care when needed. The Peruvian's extensive coat may complicate examination and treatment; an experienced exotic vet understands how to work with these unique patients. Regular wellness visits establish baseline health parameters for comparison during illness.

Handling Peruvian Guinea Pigs requires special attention to protect their flowing coats while ensuring security and comfort. Support the full body weight when lifting, using one hand under the chest and another supporting the hindquarters. Gather the coat to prevent dragging or catching before lifting. Never grab by the coat, as this causes pain and damages hair.

Daily grooming is non-negotiable for Peruvian Guinea Pigs. Using a wide-toothed comb or soft brush, work through the entire coat systematically, section by section. Begin at the ends of the hair to detangle, gradually working toward the skin. Never pull through mats forcefully—use detangling spray and work mats apart gently, or carefully cut them out if necessary.

Show Peruvians require coat wrapping between shows to protect their floor-length hair. This involves rolling sections of coat in tissue paper or fabric wraps, secured but not tight, to prevent tangling and soiling. Wrappers must be checked and changed regularly. This intensive maintenance suits dedicated show exhibitors rather than casual pet owners.

Pet Peruvians benefit significantly from practical trimming. Many owners keep their Peruvians in cuts that maintain the breed's beautiful flowing appearance while allowing comfortable, hygienic daily life. Common approaches include trimming to 4-6 inches overall, maintaining slightly longer body hair with shorter belly and hindquarter trims, or keeping facial hair trimmed for better vision. Any trim is preferable to matted, neglected long coats.

Sanitary trims around the hindquarters prevent waste accumulation in long rear hair. This practical maintenance should be performed regularly regardless of overall coat length. The genital area and around the anus need particularly close attention to prevent soiling and associated skin problems.

Bathing Peruvians should be minimized but may be necessary occasionally. Use guinea pig-safe shampoo, work gently through the coat, rinse thoroughly, and dry completely—dampness causes coat damage and skin problems. Professional grooming may be worthwhile for extensive cleaning or mat removal.

Peruvian Guinea Pigs suit dedicated owners prepared for significant daily grooming commitment. Their spectacular appearance comes with substantial care requirements that should not be underestimated. Prospective owners must honestly assess their willingness and ability to provide daily coat maintenance before choosing this demanding breed.

The Peruvian is not recommended for first-time guinea pig owners or families seeking low-maintenance pets. Children may be initially attracted to the beautiful coats but rarely possess the patience and consistency required for daily grooming. If families do choose Peruvians, adults must assume full responsibility for coat care regardless of children's involvement with other aspects of guinea pig keeping.

Show enthusiasts and dedicated breed fanciers represent the ideal Peruvian owners. Those who enjoy grooming as a bonding activity and take pride in maintaining beautiful coats find Peruvian keeping deeply rewarding. The breed offers unique satisfaction for owners willing to invest the necessary time and effort.

Practical pet Peruvians—kept in shorter, manageable trims rather than full show coats—expand the potential owner base somewhat. With regular trimming reducing daily grooming time, Peruvians become more accessible to committed owners who appreciate the breed but cannot maintain show-length coats. Even trimmed Peruvians require more grooming than short-haired varieties.

The social requirement for companion housing applies to Peruvians as with all guinea pigs. Housing multiple long-haired pigs increases grooming workload proportionally. Some owners pair a Peruvian with a short-haired companion to reduce total grooming time while meeting social needs for both pigs.

Financial considerations include grooming supplies (quality combs, brushes, detangling spray, scissors for trimming), appropriate bedding that won't tangle coats, and potentially professional grooming services. Veterinary care for coat-related issues adds another possible expense. Time investment—potentially 20-30 minutes daily for full coat maintenance—represents the greatest ongoing commitment.