Measurement of scrotal circumference, (especially in young bulls) gives a fairly accurate estimation of their ability to produce semen. The tape is put around the testicles and the metric measurement compared to the fertility chart supplied. Instructions for use included.
Even experienced breeders will find this simple rotating chart handy. Just set the inner disc to breeding date, and all other important dates are indicated. These include: return oestrus, pregnancy check, dry off, calving date. Calendar is 22cm square o.a. Waterproof materials.