Skip to content
scrotal circumferenceJoe Segen2016-12-14T22:19:19+00:00
A self-explanatory term for a surrogate measure of the sperm producing tissue in bulls.
It is easily (?) measured and a better predictor of puberty than age or body weight. And bigger balled bulls breed daughters that reach puberty earlier.
The image raises the question of who has bigger balls, the bulls or the boys