Genetic Testing


By Larry Stalcup Identify the traits you want. G


enetic testing evolves virtually every day, as the new miracle technology helps ranch-


ers identify traits that can improve cattle per- formance in the pasture and on feed. It leads to improved carcass quality and ultimately enhances beef fl avor and tenderness among consumers who demand their money’s worth for a $15-per-pound ribeye. Expected progeny differences (EPDs) and


information on dozens of genetic traits help even the smallest herds reach their selection goals. Higher pregnancy and calving rates, more effi cient weaning rates, better gains and


68 The Cattleman November 2013


fewer herd animal health problems are possible through genetic testing. So are more Choice quality grades and premiums that follow them. Joe Paschal, Texas A&M AgriLife Extension


livestock specialist in Corpus Christi, has fol- lowed the advancement of genetic testing since the fi rst markers were identifi ed in the 1980s. “Genetic testing has been around for a long


time,” Paschal says. “But the current form of testing the DNA of an animal for genes, or markers that indicate the presence of a gene, is still new.” The past 20 years have seen the tests im-


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