Peruvian Guinea Pig

The Peruvian guinea pig is widely regarded as the oldest long-haired guinea pig breed, believed to have originated in Peru. Adults measure 20–30 cm and weigh 900–1,400 g. Their coat is extraordinarily long—sometimes exceeding 30 cm—and grows forward over the head, giving the animal an appearance that is almost entirely hidden by flowing hair. Multiple color varieties exist, including solid, bicolor, and tricolor combinations. Despite their exotic appearance, Peruvians are known for their gentle, sociable temperament. However, their coat demands significant daily care: thorough brushing every day is required to prevent severe matting, and trimming every 3–4 months is strongly recommended. Like all guinea pigs, they require daily vitamin C supplementation. Common health issues include scurvy, fur impaction, dermatitis, and dental disease. Lifespan is 4–8 years. Prices typically run 50,000-100,000 yen—higher than common short-haired guinea pigs (1,000-5,000 yen) because of the long coat. Availability is limited, and bloodlines with fine coat quality and color cost more from breeders. They are often compared with the Sheltie (Silkie): the Peruvian's coat sweeps forward over the head and hides the face, while the Sheltie's coat sweeps backward leaving the face visible. Grooming is far more demanding than for short-haired or curly breeds like the Teddy or Abyssinian, making them better suited to intermediate-to-advanced keepers. They are gentle and become well socialized through daily brushing, but since their vision is often obscured by coat, approaching slowly so as not to startle them is the key to taming.