Guinea Pig — enrichment (owner-practical care, Merck Veterinary Manual pet-owner)
Source: first-hand Merck Veterinary Manual pet-owner text, saved to source_file; every claim below is a C1 byte-substring of it.
Claims
Have the cage set up, and have food, bedding, chew toys, food dishes, a water bottle, and a brush ready.Put a small wood or cardboard box inside the cage as a hiding place for security and sleeping.Do not use exercise wheels, which can injure guinea pigs.Provide daily supervised out-of-cage time in a guinea pig–proofed area without cords or other chew hazards.They like to chew and may gnaw electrical cords or toxic houseplants.Always supervise a guinea pig outside of its cage, and make sure the area is safe and free of hazards.
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Source: pdf-raw/owner-care/merck_guinea_pig.txt · https://www.merckvetmanual.com/all-other-pets