The sale order for the IPT Bull Sale will be determined by using the Power Score.

Power Score (PS). The PS will be calculated for a bull based on “Percentile Rank” for $ Value Indexes. 

Angus bulls will be ranked by % Rank for $C. Simmental- % Rank for API and TI; Hereford- % Rank for BMI & CHBI

Angus PS = (% Rank $C)

Simmental PS = (% Rank API + % Rank TI)/2

Hereford PS = (% Rank $BMI + % Rank $CHB)/2

LOWER SCORES mean a more genetically desirable bull.

PS Example. The following four Simmental bulls are representative of those sold through previous IPT Bull Sales. If we are to rank these for use in a rotational system in which females will be used as replacements in the cowherd and steers fed and sold on grid market:

Bull         API                         TI 
A             147.00                   81.30 
B             134.78                   77.42 
C             144.30                   76.49
D             159.90                   87.71 

To calculate the PS for the bulls above, use your breed’s most current Percentile Breakdown for Non-Parent Bulls to determine percentile ranks for the various traits. The PS for these four Angus bulls based on the “Percentile Ranks from the Sire Evaluation Report – Non-Parent Bulls.” 

Sire A: (21+36)/2 = 57 /2 = 28.5 
Sire B: (40+52)/2 = 92/2 = 46.0 
Sire C: (24+56)/2 = 80/2 = 40.0 
Sire D: (8+15)/2 = 23/2 = 11.5 

Thus, the order of sale for the four bulls would be… 
1st – Sire D = 11.5  2nd – Sire A = 28.5  3rd – Sire C = 40.0 4th – Sire B = 46.0

Breeds without index values will still use the “6 trait Power Score”.