Breeding and lifespan

Second cross Tonkinese litters (the progeny of first generation Tonkinese) may yield only 50 per cent Tonkinese types with a possible 25 per cent each of Burmese and Siamese looking kittens. Commonly known as 'throw backs', these irregularities are the result of the strong influence exhibited by the genetically similar foundation breeds. It is argued by some breed societies that this is good reason for the Tonkinese not to be recognised as a breed in its own right, as a true type may not be relied upon in more than 50 per cent of offspring. Regardless of its appearance, the Tonkinese is still a robust cat, and could remain a member of the family for up to 15 years.