hi,
i have a 17 yr old border collie bitch, i let her have her first season on the vets advice then she was spayed at around 6 - 7 months.
she now, with age and the fact she was spayed ,has incontinence and has done for about 3 years. however she has incurin tablets one a day which manage this very well.
i will be getting cocker bitch to go with my 9 month old cocker boy, soon. the vet has already said he won't spay the bitch until she has had her first season and won't touch the dog until he is at least oneyear old.