What are some scientific methods used in breeding beef cattle?
The most important “scientific method” used in beef cattle breeding is the use of production records of individual calves within contemporary groups to calculate genetic estimates of breeding values for every animal within a breed of beef cattle. These genetic estimates are called EPD’s (Expected Progeny Differences) and are a prediction of what future progeny of any bull or heifer will produce in their lifetime. These estimates are calculated from the difference between an individual and the average of the contemporary group, the heritability of the trait being measured and the merit of all relatives in the individual’s pedigree. Super computers are able to utilize a matrix of all related animals in a breed to make these complex calculations and keep them updated on a regular basis. Through artificial insemination (AI), bulls are able to sire calves in many herds , thus allowing for the estimation of environmental effects and making it possible to calculate breeding values. The combin
