Over the years i have had two bitches spayed,both at 8 years as they got a pyametra.Both were black/white show dogs,Within 12months they both looked hairy monsters,growing hair from every where,i cried buckets when i clipped all the coats off the first time, :embarassed:but it was the only way i could stop them getting knots all the time.I gave a home to a spayed bitch from my friend.Spayed in the Nov.i got her in the March,by the end of the year her coat had changed from soft/silky to harsh and knotty,so i have to clip her now as well.she is a blue roan.