Upper respiratory infections (URI) and respiratory disease are the most common issue rats face and a leading cause of premature death in many parts of the world.
Symptoms
It’s important to know how to prevent it and what to do as soon as symptoms arise. If you just got your rats less than 2 weeks ago or you just switched to a new bedding, this is actually just “New Home Sneezes”, check out my blog on this topic for more information. If there are symptoms other than sneezing such as excess porphyrin (red discharge on eyes and nose), lethargy, not eating or drinking as usual, audible breathing noises like honking, squinted eyes, sucked in sides, puffed fur, then you must contact an exotic vet immediately.
Causes
Ammonia, dust, and stress are common causes of respiratory illness. Ammonia is the major irritant to rats, and their own urine turns into ammonia as it breaks down. We must ensure proper bedding is used and stay on top of cleaning with safe products. Only kiln-dried aspen, kiln-dried pine, hemp, and bioactive bedding properly neutralize ammonia. Just make sure to get a dust-free. Many rats are born with Mycoplasma pulmonis bacterium which will cause flare-ups when these irritants are present. Once an initial Mycoplasma flare-up occurs, the chances for recurring infection are higher- and they become contagious to other rats.
Preventing These Irritants
•Cleaning:
Only clean rat cage items and around the cage with vinegar and hot water, a couple drops of unscented soap like pure Castile soap if you need to scrub something well. Strong scents like air fresheners, laundry detergent, and scented soap can irritate their respiratory systems and cause a flare up. Remove rats from cage when cleaning with vinegar.
•Stress:
Reduce stress by doing a proper quarantine before introducing groups of rats and respect their boundaries during the bonding process. Keep them in a quiet room if possible away from other pets like dogs, cats, your resident rats for their first 2 weeks. Ensure you’re washing your hands before and a fter nteracting with any animal. Don’t introduce any scents like air fresheners, smoke, laundry detergent, or clothes that smell like other animals in the home to your new rats.
•Genetics:
Genetically, respiratory disease can be passed in the womb or vertically from cage-mates as baby rats grow. Pinched and/or pointy noses are more likely to have respiratory problems as it’s harder for them to dispel irritants. It’s important to find a source that is breeding out respiratory disease like an ethical breeder, or find a rescue that does proper quarantines and utelizes vets to check over every rat to reduce chances of illness.
•Other Environmental Considerations:
-prevent drafts (make sure there isn’t a ceiling fan, AC, or open window by the cage)
-ensure humidity is between 40-60%
-ensure temperature is between 65-80 F
-use an air purifier by cage to draw in dust and ammonia (with the cord out of reach) -use dust-free bedding
-use ammonia controlling bedding so only kiln-dried aspen, kiln-dried pine, hemp, or bioactive.
Supplements:
-couple drops of apple cider vinegar to water 6 days on, 1 day off or offer ACV in only one of the sources of water and use plain water in the other
-you can give them a drop of mullein leaf extract a day or other supplement like colloidal silver to bolster respiratory system.
Even when we do absolutely everything right, some rats are born with Mycoplasma pulmonis bacteria and will have recurring respiratory infections because of it. It’s more likely to recur after initial flare-up. It’s important to prevent the initial flare-up by following every step in this blog and educating ourselves on the signs of illness to start immediate antibiotics to prevent worsening symptoms.
Another common pathogen that can cause recurring issues is PCAR/RRV. Once they get over initial flareup they typically build immunity after treatment, but it can leave lung lesions which impact their respiratory health for the rest of their lives.
It’s best to find sources of rats that actively test free of these pathogens when searching to adopt and have pristine living conditions that prevent initial flare-ups. Check out my blog on Where to Get Pet Rats to find an ethical breeder or rescue that promotes the improvement of the health of rats.
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