The Skeletal System of a Chinchilla
Chinchillas are gaining a reputation for delicate skeletons as well as for their thick, luxurious fur and cute appearance. But why are broken bones so common in an animal adapted for jumping? As with most exotic pet problems, we need look no further than diet and husbandry.
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History
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The chinchilla is a rodent native to the Andes mountains of South America. They were hunted to the brink of extinction for their fur. All pet chinchillas are descended from eleven trapped in 1923. They are adapted for climbing and jumping in a dry, chilly, mountainous environment.
Diet
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The only appropriate pet chinchilla diet is pellets made specifically for chinchillas, and dry timothy hay. Pellets made for any other animal, or with treats mixed in, will eventually kill your pet. Brittle bones are caused by improper diet and, often, being born to a mother who had an improper diet during growth, pregnancy, and nursing.
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Calcium Considerations
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Like all exotic pets, improper calcium causes problems in chinchillas. Chinchillas should always be fed chinchilla pellets with a 2:1 calcium to phosphorus ratio. Read the label. Too much phosphorus leads to bone loss, while feeding calcium supplements to chinchillas causes urinary problems. Magnesium also leaches calcium from bones. If you have problems with feline urinary blockage in your area, your water supply probably has high magnesium content.
Handling
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Many injuries are caused by squeezing. The ribcage is very delicate and easily broken. Always pick a chinchilla up underneath its back legs, gently cradling its body against you. Do not grab or lift high off the ground, and never squeeze.
Accidents
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Other broken bones result from falls, being struck, or becoming stuck. Heights, falling objects, and loose cage wire and doors are common culprits, but a weak skeletal system allows these injuries. The hind legs, teeth, and tail are frequent victims. Broken teeth must be filed down and will regrow. Broken bones require veterinary intervention.
Veterinary Care
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Be sure to locate a vet experienced in chinchilla care, preferably before acquiring your pet. A small animal practice is not enough, the doctor must be experienced specifically in caring for chinchillas and knowledgeable regarding their special needs.
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References
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- Photo Credit Image by Flickr.com, courtesy of Dave Morris
