Wild pacs eat a far more varied diet which allows for greater micronutrients uptake. Those in captivity on the other hand are generally fed a staple diet of whatever feeder is easiest for the owner to procure. Staple feeders, depending on gut loading, are generally not nutritionally complete. Which is why vitamin and calcium dusting is required.
Unfortunately most pet shop clerks are only vaguely aware of the care needs of the animals they sell so new owners may not receive the information they need to properly care for their new pet.
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