Pictured above is a 27 month old Mashona / Angus bull bred by Rancho Carretas, Mexico. He was identified (observation) as the most virile yearling Mashona / Angus bull out of a group used for multi-siring last year. Semen has just been collected from him in preparation of inseminating similar genotype heifers and cows.
There is both SCIENCE (organised common sense) and ART (“reading” nature correctly) involved in cattle breeding.
The result: Accelerated Natural Selection.
This is the ONLY appropriate role for cattle breeders.