Common Terms and Definitions BULL INFORMATION Special Additions - This logo signifies bulls that are a part of the ABS Special Additions semen collection and marketing program. ORIgen – This logo signifies the sires that are accessed through the ORIgen marketing network. Elgin- These bulls are part of the ABS/Elgin Alliance. Semen has been produced by Elgin Breeding Service. Angus Sire Alliance - ABS reached an agreement with Circle A Ranch to market the winners of their innovative Angus Sire Alliance program. The Angus Sire Alliance has put together one of the most comprehensive progeny test programs in the industry; by using economic modeling programs and relative economic weights they have combined the various genetic components into an overall Profitability Value (or EPD). Calving Ease - Star ratings are a subjective estimate of a bull's calving ease. In assigning stars, objective data (such as birth weight and calving ease information for heifers and cows) is used. Stars may generally be interpreted as follows: **** Bull proven for a high level of calving ease based on calving ease scores, birth weight EPD, and accuracy level. *** Bull who can be used on heifers of the same breed. ** Bull who can be used on cows - no assists should be expected. * Bull who should only be used on mature cows - expect large birth weights. Carcass Rating - Steak ratings are a subjective estimate of a bulls overall carcass merit based on his percentile ranking within his breed for carcass traits and/or ultrasound body composition. In the Angus breed, bulls receive one steak for Marbling/IMF, REA and %RP, if they rank in the top 50% of the breed. They also receive an additional steak if they rank in the top 25% for Marbling/IMF. Red Angus, Charolais, Gelbvieh and Limousin bulls receive one steak each for Marbling, REA and Fat, if they rank in the top 50% of the breed and an additional steak if they rank in the top 25% for Marbling.
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