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American Simmental Association’s Economic Selection Indexes

American Simmental Association’s Economic Selection Indexes. Wade Shafer American Simmental Association Bozeman, MT. Which Sire Should I Use?. Lot 1: Pretty Boy. Comments: this is a wonderful bull. Performance Data:. EPDs:. BW:95 ABW:98

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American Simmental Association’s Economic Selection Indexes

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  1. American Simmental Association’s Economic Selection Indexes Wade Shafer American Simmental Association Bozeman, MT

  2. Which Sire Should I Use? Lot 1: Pretty Boy Comments: this is a wonderful bull Performance Data: EPDs: BW:95 ABW:98 BWR:103 WW:670 AWW:690 WWR:112 YW:1240 AYW:1300 YWR:110 SC:32 ASC:36 HH:54 FS: 6.5 BF: .2 ABF: .15 BFR: 103 REA: 15 AREA:14.5 REAR: 104 IMF: 2.7 AIMF: 2.5 IMFR: 94 PA: 140 APA: 150 PAR: 92 REA:.3 BKF:.01 MBL:.2 YG:.2 MW:25 MHH:.5 WBSF:-.01 STAY:18 CE:2 BW:4 WW:35 YW:68 MCE:4 MLK:10 TM:27 CW:20 REA:3

  3. Using EPDs Without Selection Indexes . . .

  4. Economic Selection Indexes All-Purpose Index (API)a • Bred to all-aged females • Retain replacements Terminal Index (TI)a • Bred to mature cows • No replacements retained aGeneral Assumptions • Sires mated to Angus cows • Integrated system selling on end product • Prices/costs based on CattleFax 5-yr average

  5. Top TI Sires Tend to Excel in: • Growth • MRB • CE

  6. Top API Sires Tend to Excel in: • STAY • DCE, MCE • MW • MRB

  7. $ Difference Over Life of Sire $56 TI $76 • Exposed to 30 cow/yr for 5 years $3,000

  8. $ Difference Over Life of Sire $88 $124 API • Exposed to 30 cow/yr for 5 years $5,400

  9. Predictions • All seedstock for beef production will eventually be bred through the use of indexes • Commercial cattle producers will drive index use Why? • It works • It’s SIMPLE!

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