Page 8 - Red Hill Farms – Oct. 31, 2020 Red Angus & SimGenetics Bulls and Females

Red Angus Guide to Indexes

ProS ... Profi tability and Sustainability is an all-purpose index that predicts average economic
differences in all segments in the beef supply chain. This index is a combination of the
breeding objectives modeled in the HerdBuilder and GridMaster selection indexes. In this
index, replacement heifers are retained from within the herd and all remaining progeny are
fed out to slaughter and sold on a quality-based grid. Traits included in this index include
calving ease, growth, HPG, STAY, Mature Weight, Dry Matter Intake and carcass traits. The
resulting index is expressed in dollars per head born (Index/High Value).

HB ..... HerdBuilder is a maternal selection index that predicts the economic differences of
animals for traits that are important from conception through weaning. Expressed as dollars
per head born, HB is calculated based on the scenario that bulls are mated to heifers and
cows, replacement heifers are retained and all remaining progeny are marketed at weaning.
Traits included in the HB index include Calving Ease Direct, Calving Ease Maternal, Weaning
Weight, Milk, Mature Weight, Heifer Pregnancy and Stayability (Index/High Value).

GM..... GridMaster is a selection index that predicts the average economic difference of
non-replacement calves through the post-weaning phase of production. GM places selection
pressure on growth, feedyard performance and carcass traits. Expressed as dollars per
head born, GM is calculated based on the scenario that progeny are fed out to slaughter and
marketed on a quality-based carcass grid. Traits included in GM include Average Daily Gain,
Carcass Weight, Dry Matter Intake, Marbling, Back Fat and Rib Eye Area (Index/High Value).

6 – Red Hill Farms