These cattle were sold on the Gelbvieh grid. The grid price adjustments labeled Quality, Yield, and Conformance are the premiums and discounts for quality grade, yield grade, and conformance. S e x Live Wt. Once an endpoint is defined, a breeding program can be outlined. As a producer, you cannot focus on a single trait, but you must consider the whole animal and all traits simultaneously.
Fertility is extremely important, but few producers really target the genetics of fertility.
Although it is a complex trait, there are opportunities to genetically impact fertility. First, consider scrotal circumference in bulls. Data from Colorado State University and others have shown that scrotal circumference in yearling bulls is positive and highly related to sperm production. As scrotal circumference increases, age at puberty in half-sib females declines. However, these relationships are not perfect correlations.