My does, dpending on the rabbit as well, but I generally keep them if they are productive adn retire by 4 years of age, with 2-3 litters a year. my bucks, well if they're herd bucks or show bucks they stay as long as they live.
I try to not over bred, a lot of my gals only have 2 litters a year, mainly because my dutch have large litters and the Vlop, well I'll bred her out again when I breed her daughter(That i'm keeping out of the litter) out this fall, but they also have large litters