I should use males of a whole colour

I should use males of a whole colour

To breed tortoiseshell he-cats, I should use males of a whole colour, such as either white, black, or blue; and on no account any tabby, no matter the colour. What is wanted is patches of colour, not tiny streaks or spots; and I feel certain that, for those who persevere, there will be successful results.

Fonte: Cats