3 weeks ago we adopted from a rescue centre a gorgeous new kitten, 6 months old. She is utterly delightful and affectionate. She gets on really well with our dogs (one of whom adores her) but our other cat has completely lost the plot. We have had cats come in before (sadly deceased) and have never had a problem integrating a new one, but this time all hell is breaking loose. Our current cat is also a girl, both are speyed. Current cat is 11 years old. It is so bad that we still have to keep them in separate rooms as they just go for each other and fight so badly that they are drawing copious amounts of blood. Both are instigators of the fights. In addition, new kitten loses total control of her bladder and bowels when they fight, so we are constantly washing clothes and shampooing the carpets.
Does anyone have any advice as to how to calm them down? I have owned cats all y life, as has DH and neither of us has ever had any issues or problems integrating a new cat to the family.
any hep very gratefully received.