We sold the first two Polled Purebred Simmental bulls in 1976. He sold at the National Sale in Reno in 1980. She is the dam of Eight Ball, Montana Blak, Infiniti, Montana Red plus many other herd sires. Charles Pride grandam was also sired by Ace of Spades. Bulls with large testicles, not only service more cows and produce more semen, but they also sire daughters and sisters that cycle at an earlier age and have a higher conception rate.
Most testicular growth occurs from nine to twelve months of age.
Consider the age of the calf when using these numbers. A cow herd will cycle 20 days earlier if they have a bull present. This is why we use a gomer bull for heat detection. Calving ease EPD s are 3 times more accurate than birth weight EPD s in predicting calving problems. United States is fourth in cattle numbers.