Bulls account for half of the genetic input when making improvements in cattleherds. Therefore, to make a rapid, less costly improvement a cattle producer is morelikely to change bulls than cows. One of the problems that breeders who supply bullsface is that the attributes of bulls come bundled...

Bulls account for half of the genetic input when making improvements in cattle herds. Therefore, to make a rapid, less costly improvement a cattle producer is more likely to change bulls than cows. One of the problems that breeders who supply bulls face is that the attributes of bulls come...