Posted 2010-11-12 2:41 PM (#126999 - in reply to #126997) Subject: RE: How to get a filly
Without getting into a lot of sexual detail on a public site frequented by youngsters, the reason some stallions have more of one sex than another is a result of their physical length.
Male sperm, is fast and short lived. Female is slower and longer lived.
Hence, a short stallion and a breeding roll will drastically increase the probability of a filly. And a big, over zealous stallion will produce more colts than fillies.
We spent 40 years in the breeding business, and made a lot of extra money giving folks the sex they requested.
It is not all nature, we have evolved a little bit. Or better stated, we have learned how to use natures differences.