Thanx folks , when i called my vety yesyerday she said she wasn't too concerned at present but if it carries on send in a urine sample for testing on, she also said it could be from where suka hadn't weed for a while not too sure about that one as she can get outside nearly always , anyway suka has just finished the 4 week course of CARTROPHEN injections , it may be that which has caused this green colour, it was only a small amount of green liquid in her pee but i will be keeping an eye on this, thanx again.