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Rattery News

2/25/2023 0 Comments

What's New at EVO

So much has happened since we wrapped up the SBM/RBF Project last summer.  I was lucky enough to retire last June, just in time to give the rattery a complete overhaul ready for their return in July. The space was gutted, and painted, and the rats got updated cages, with all new enrichment. Thanks to a very generous donation, I was able to kit every cage with an Exotic Nutrition Wheel, and new ladders (Channel Drain Grates) that are easier to keep clean and sanitized.  
Since retiring I am able to concentrate on the rattery full time and start on some breeding projects. I am currently outcrossing the Black Eyed Siamese and Martens to Albino. The hope is to improve on overall health and vitality in the Black Eyed Siamese and we have already been successful in re-introducing both Black and Agouti to the Marten line.
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Red Eyed Black and Agouti Martens
Now that I have more time I am able to offer transports in SC, GA and NC. The transports to Richmond VA also look to become a regular occurrence with enough interest. I am hoping to get a set route established, and do an extended transport at least once per quarter.

Lastly, I wanted to share a video of the babies that are currently posted and available for reservations.  Babies will be able to go to new homes once they are eight weeks old (March 25th), and the few young adults and retirees are available NOW! I am happy to schedule a Video Chat so that you can see the rattery and available rats. Contact Me to schedule one at your convenience. 

THANK YOU all for all your continued support and encouragement.
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3/9/2022 0 Comments

SBM Project Finish Line is in Sight.

In June 2021, Evolution Rattery and Oakgrove Rattery undertook a project to try to eradicate Streptobacillus moniliformis (SBM), the bacteria that causes Rat Bite Fever (RBF), from the fancy rat breeding community, using a cross-fostering method.
Over these months, we have raised a thriving colony of pathogen free albinos, including a ‘control’ group and a foster group. We can now start offering other breeders clean rats in trios of 1 male and 2 females. We would love to be able to offer these rats free-of-charge, but the cost of maintaining our colonies without the income from adoptions has been a challenge.  We have had several generous donations; however, the majority of expenses for maintenance and testing has been out of our own pockets. Therefore, we will be charging a nominal fee of $40 per albino trio.  Likewise, when we can start offering breeding stock, we will do all that we can to charge low fees. Our belief is that we shouldn’t profit from helping the fancy rat community.
As for testing, we were excited when the community came across a low-cost testing facility, and initially used this resource for our testing needs.  Unfortunately, we received some positives which almost made us give up since the project appeared to have failed. We discussed these results with Charles River (CR), and reviewed our process and husbandry with them.  They were encouraged by our interim results and offered to sponsor several tests to confirm/deny the positives we had received from the other lab. 
We can now confirm that 100% of litters fostered so far are SBM FREE, this includes litters whose biological mothers were SBM positive!  The results we received from CR were ALL NEGATIVE! They are so extremely excited about this progress that they are sponsoring a second round of tests in a couple weeks. Since the other lab has proved to not be as reliable as we had hoped, we will now exclusively use CR for foster litter testing.
Exciting, right! That’s not all! We have also included testing for viral pathogens as part of our process.  We did this to ascertain what pathogens present in our original colony had been transferred along with the foster litter.  100% of our foster litters have tested NEGATIVE for the following pathogens:
  1. Sendai (SEND)
  2. Sialodacryoadenitis virus (SDAV)
  3. Kilham's rat virus (RV; KRV)
  4. Lymphocytic choriomeningitis virus (LCMV)
  5. Hantaan virus (HTNV)
  6. Mycoplasma pulmonis (MPUL)
  7. Filobacterium rodentium (CAR Bacillus; CARB)
  8. Rotavirus type. B (IDIR)
  9. Encephalitozoon cuniculi (ECUN) 

This means we have proved that cross fostering CAN effectively clean colonies of even some of the most difficult pathogens – especially those that can harm us. Mind you: we accomplished this without the use of antibiotics!!! We have cut no corners in this process to get as conclusive of results as possible – to the point that CR said our process was more thorough than some lab attempts at cross fostering.
We want to test at least one more generation before we claim our process to be a total success – this will be around the first of May. At that time we will publish our ‘Draft Process’ to be available to ALL. And yes!! Start adopting again!!!!!!!! Our final step has been to introduce several confirmed clean rats to our ‘dirty colony’ to gauge how susceptible they are to viral infection. This way we can inform adopters if clean rats can be safely introduced to their current mischief or if we will advise against it.

​For now, please help support us if you can via our GoFundMe or if you would rather help by sending a gift card, our supplies frequently come from Chewy, Tractor Supply, and Ace Hardware. Please contact us at either [email protected] or [email protected] for a mailing address.
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    Melanie DeHaven

    Owner/Operator of EVO, all around animal lover and essential oil junkie.


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