How long do you sit on a dog?

I think yalls ideas are great. Like I said if I would have researched a little more I might have held on longer. The window for labs pointers are about the same if that 5 month old lab is not showing any sign of retreiving he won't last long with them as well. Even furturity horses its by date of birth by my short hog dogging the ones who starts baying cows and horses are those dogs that cross water don't lost bark will be sick about there job. I mean lots of stay power and adapts to hunting easier to me. I breed a litter of pups for myself every year by the time there 6 monthes old they are like the pup I took to E C as well as Penny. Young but know and love there jobs but also I can go to the source that have been breeding these dogs so they know all about them.Also I think females a serious about it earlier all about business in the lines of dogs I'm breeding. For myself a man has to know his limitations I mean this about myself I better stick to dogs I think I know. Before I mess up some elses good line of dogs. Des