Is the google info on Wry neck beneficial or is there a specific source I should go to learn more about it?
She threw beautiful kits and was a great momma. Now with her spontaneous rolling I’m not sure I should breed her any more.
Wry neck can result from several different causes, including injury, but the one that I've personally encountered is the microorganism
Encephalitazoon cunuiculi.
E. cuniculi has been identified as a protozoan, but it has fungal qualities including transmission by spores, among other other common routes, like exposure to/ingestion of contaminated urine. The parasite is usually found in the kidneys, but when the rabbit is stressed it can migrate to the nervous system, commonly the brain and/or eye(s). The rabbits I've dealt with have had various symptoms including wry neck, vertigo, rolling, and weepy/cloudy/bulging eyes, depending on where it lodged (eye/eyes or brain or both). This microorganism appears to be fairly prevalent, and only under certain situations does it become problematic.
We have had a couple of rabbits come through it, and though most of them never recovered enough for me to feel comfortable breeding them, one was quite healthy and had several litters after her recovery. We don't see it often, but over the years, for our rabbits and those of others, we've used fenbendazole, ivermectin, or neomycin oral, with moderate success in does; bucks seem to go downhill more quickly and we've never had one pull through. It does take a while to get better. The eyes would clear up first, usually starting after the first dose, and then their head tilt would begin to slowly right itself. I don't believe any of them ever got their head completely back into the right position, but it was improved enough that they didn't roll or fall over anymore, and had no trouble eating and drinking normally.
If your rabbit is still rolling, I would definitely not breed her. If the torticollis is due to injury, that would preclude breeding; and since
E. cuniculi is not a bacterium, if that's what's going on with your doe, antibiotics may not have really addressed the issue, although as noted above, we did have success with neomycin oral, which is an antibiotic. If it was me, I'd try one of the therapies named above (fenbendazole would be my first choice), and give her time. Success will be indicated by a slow righting of her head and cessation of rolling.
Note that this microorganism appears to be zoonotic (can be passed to and cause problems in people), so if there are immunocompromised people in your life, be conscious of exposure.
Here are a couple of related threads, one with a photo of our Mini Rex Moonlight, who bred successfully for years after recovery:
https://rabbittalk.com/threads/rabbit-with-hole-in-lip-and-a-rabbit-with-ec.36885/#post-357884
https://rabbittalk.com/threads/unbalanced-17-day-old-kit.37223/#post-361268
Here are some technical papers regarding the organism and its action in rabbits:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9785705/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7337189/
And this is an article from the House Rabbit Society, which I don't usually rely on for information because of certain biases generally present in their publications, but this one has a lot of data from a study on
E. cuniculi they did in California:
https://rabbit.org/health/e-cuniculi/
