Internal
Parasites Giardia Chinchillas normally harbor giardia species in low numbers [Donnelly etal] which commonly causes no problems for the chinchilla. But, under stress, in the presence of a dirty environment, contaminated water supplies, or at times when the immune system is lowered in other illnesses or trauma the Giardia can then cause disease. [If you don't think your water supply can possibly be contaminated, remember that the levels that are safe for humans are higher than levels of the same organism that are safe for something as small as a chinchilla. Know too that the whole Sierra Nevada water system is contaminated with Giardia, and the Rocky Mountain water system is fast becoming so.] |
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Giardia,
as seen under an electron microscope
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Wounds
left by the sucker-mouth of a Giardia Parasite
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Drawing
of Giardia, as seen under a microscope
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The symptoms tend to be anything from increased appetite, to decreased activity, diarrhea [or constipation] and even collapse. The diarrhea tends to be large wet stools that shine with mucous, are very squashy and tend to be smeared on the house, perches, and other flat surfaces of the chinchilla cage. Diagnosis is best done on a fresh fecal smear-- take your sick chinchilla to a vet, let him/her get a piece of feces dropped within the past 2 minutes in the office, place it onto a slide and squash it, and put a couple drops normal saline onto the slide. The slide should show the giardia easily. Treatment is usually recommended to be metronidazol [flagyl] but we have found better success with albendazole or fenbendazole. Care of the animal consists of fluids to replace fluids lost in the diarrhea [see diarrhea], high energy foods [see food supplements] and cleaning the cage and environment of the chinchilla with good disinfectants such as 20% bleach, dettrol, lysol etc. Coccidiosis |
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Coccidiosis tends to be a disease problem in areas of poor sanitation, so animals should be housed to prevent contamination of food and water by contaminated feces. If infected, food and water dishes should be disinfected by steam cleaning or immersion in boiling water, 5% ammonia solutions can also help disinfect the cage and dishes. Insect control is also essential as flies and cockroaches may serve as insect vectors of the oocysts. |
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Coccidia
Oocysts
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Worms |
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Hookworm,
taken under an electron microscope
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Cryptosporidia Again, crowding, and unsanitary conditions increase the risk to the animal. In this case, when the vet examines the fecal sample of your animal, the vet should kill the cyst in formalin before checking under the microscope, as this bug is more infective than other parasites. It can also infect you and your vet. Again, a fresh sample of stool examined under the microscope can give the vet a good idea of contamination. Other tests can be run, but this will give the veterinarian a good idea of what he is working with. This organism is harder to eradicate than the others, and most antibiotics used are used mainly to combat secondary infections. Your animal will probably be in severe dehydration, and parenteral fluids need to be given by the vet under those circumstances. Care of your animal again consist of supportive care [see diarrhea and food supplements]. The cage, all cage materials, anything the animal has dropped feces onto, and its environment must be sterilized with a very strong disinfectant, bleach does not seem to kill this organism. All dishes should be boiled for at least 20 minutes or run through your dishwasher on sanitary cycle. Anything that is porous [carpeting, wooden shelves or houses, perches etc.] should be thrown away tied in plastic bags so not to contaminate the landfill. If you feel your water is the culprit, you need to filter water through a very small ceramic filter, as most regular water filters are not small enough to catch any of these organisms. Boiling water for 20 minutes will also kill these organisms. The authors use either filtered water or purified bottled water for their animals. |
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