In HOLLAND LOPS I think that does are
an anomaly of sorts. Chances are that a doe that is very showable,
meaning having a long show life including wins will either not
produce offspring or produced sparingly. Her ugly sister though,
will probably produce some very nice looking offspring. The sister
will also produce a higher number of offspring. Of the thirty
or so does 
that I am currently using in my breeding
program, maybe only five of them are 'showable'. With does that
I have selected strictly for breeding I try to start breeding
them between five and six months. I seem to get better results
through out the span of their breeding lives by starting them
a bit earlier. If I am showing the doe, I try not to let her
go past nine months before attempting to get her bred. Of course
there is always the exception, I have gone over a year before
breeding and have had does that have produced and have gone on
to have long fruitful breeding careers. As long as a doe is producing
and is producing good 
quality
offspring I keep her in my breeding program no matter her age.
I have found in my breeding program that young does bred to young
bucks have the least amount of misses and tend to produce higher
numbers of offspring in a single breeding. I find using the younger
does and younger bucks in the winter and summer or during times
when the animals are reluctant to breed also helps keep my production
of litters up.
