^ Somerville, Louisa (2007). The Ultimate Guide to Cat Breeds. Edison, New Jersey: Chartwell Books. p. 44. ISBN 9780785822646. There is a lot of confusion surrounding the use of this name in the cat world, although it is always used to describe cats of distinctly Oriental type. It has been adopted simply because of the tradition which has grown up for using the names of countries and islands from south-eastern Asian for other Oriental breeds, such as the Siamese and Balinese.
Russian Blues like their daily routine to be just so, and dislike household changes more than the average cat— and the average cat dislikes household changes a lot. They particularly dislike changes to their dinner schedule, and will make you aware of their displeasure. They are also fastidious about their litter boxes and will complain or may even go elsewhere if they’re not spic and span.
Please do not ask us to sell you a kitten, nor to refer you to a broker, dealer or breeder.  These animals do not make good pets and if you have the experience and expertise to care for one for the rest of it’s life, then you should be donating your time to caring for the hundreds of unwanted ones who have ended up in real sanctuaries.  Real sanctuaries do not breed.
The cat staged its first public appearance in 1871, when a Russian Blue was displayed at the Crystal Palace in London, under the name Archangel Cat. In those days, the Russian Blue looked quite different than what we are familiar with today. They were short-haired, solid blue cats with thick, dense, glossy coats. And though they were allowed to compete in the same class as other shorthaired blues, the Russian Blue frequently lost to the British Blue breed, a cat that had caught the fancy of the people.
It is difficult to say whether this is something pathological or not since the rapid breathing for a short period of time may be due to smelling something (looks like breathing with the chest movements) or another cause; if there are no other symptoms and these ‘episodes’ only last a couple of seconds I would keep an eye on things for now and bring it up with your Veterinarian at Salem’s next checkup. Regards Dr Callum Turner DVM
Queening is a painful process just like childbirth is for humans and some heavy breathing or panting may occur afterwards for a few days due to discomfort. But if you feel that she is straining or in distress you should visit your Veterinarian to check her over to ensure that there isn’t a retained kitten or another issue leading to these symptoms. Regards Dr Callum Turner DVM