Gene Max Data Definitions $M - Maternal Weaned Calf Value - An index, expressed in dollars per head, predicts profitability differences from conception to weaning with the underlying breeding objective assuming that individuals retain their own replace- ment females within herd and sell the rest of the cull female and all male progeny as feeder calves. $B - Beef Value - A terminal index, expressed in dollars per carcass, to predict profitability differences in progeny due to genetics for carcass grid merit compared to progeny of other sires. $C - Combined Value - An index, expressed in dollars per head, which includes all traits that make up both Maternal Weaned Calf Value ($M) and Beef Value ($B) with the objective that commercial producers will replace 20% of their breeding females per year with replacement heifers retained within their own herd. The remaining cull heifer and steer progeny are then assumed to be sent to the feedlot where the producers retain ownership of those cattle and sell them on a quality-based carcass merit grid. BW - Birth Weight - Higher BW scores are generally more desirable and indicate genetics for lower BW. WW - Weaning Weight - Higher scores represent genetic merit for more growth. CEM - Calving Ease Maternal - Higher scores indicate a greater likelihood of unassisted calving due to underlying genomic predictions for maternal (i.e., pelvic size) and direct (i.e. birth weight) effects on calving ease. Milk - Higher scores represent greater predicted genetic potential for the maternal component of weaning weight - which favorably impacts progeny weaning weights but unfavorably influences feed requirements, associated costs and possibly expressed future reproductive performance (if feed requirements are not met). As with MW, Intermediate Milk score values are likely optimal for many situations. CW - Carcass Weight - Higher scores indicate genetic merit for heavier carcass weights transmitted to progeny. REA - Ribeye Area - Higher scores communicate genomic predictions for larger ribeye areas (square inches) and more favorable associated USDA Yield Grades passed on to progeny. Marb - Marbling - Higher scores are associated with genetic merit for more marbling and more favorable USDA Quality Grades expected to be transmitted to offspring. --Source: GeneMax
Note: Videos of all cattle can be found on www.blackbeltcattlemarketing.com or the DV Auction site (www.dvauc- tion.com) and search for Fall Ball.
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