Genetic Disorders
The gene that gives the Cymric and Manx their unusual tails can also be lethal. Kittens who inherit two copies of the tailless gene die before birth and are reabsorbed in the womb. Since these kittens make up about 25 percent of all kittens, litters are usually small. Even cats who inherit only one copy of the gene can have what is called Manx syndrome. This can cause Spina Bifida, gaps in the vertebrae, fused vertebrae, and bowel or bladder dysfunctions. Also, a rabbit-like hop can sometimes be seen in Cymric cats due to the spinal deformity.
Not every Cymric with a short spine has problems or Manx Syndrome. It is simply an attribute of the Manx gene, and its expression cannot be entirely prevented. As the problems usually become apparent within the first six months of age, Cymric and Manx kittens are usually kept by breeders until older before being made available.
Read more about this topic: Cymric (cat)
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