HEIFER SELECTION DECISION POINTS Select heifers with most earning potential Select sires to produce the best heifer calf crop Select the best sires to breed to heifers (A.I. and/or natural)
Trait Correlations (%GV) for GE-EPDs Progeny Equivalents Heifer Pregnancy (HP).49 (24)12 Calving Ease Direct (CED).63 (40)22 Birth Weight (BW).66 (44)12 Milk.38 (14)15 Docility (Doc).65 (42)9 Scrotal Circumference (SC).77 (59)13 Weaning Weight (WW).56 (31)19 Yearling Weight (YW).67 (45)23 Dry Matter Intake (RADG).73 (53)17 Yearling Height (YH).73 (53)10 Mature Weight (MW).71 (50)14 Carcass Weight (CW).58 (34)6 Marbling (Marb).66 (44)9 Ribeye Area (RE).68 (46)11 Fat Thickness (Fat).64 (41)12 Maternal Traits – GE-EPD accuracy equals an average of 14 daughters’ information Growth & Efficiency – GE-EPD accuracy equals an average of 17 progeny with performance data Carcass Traits – GE-EPD accuracy equals an average of 10 progeny with carcass data GE-EPDS AND ACCURACY POWERED BY HD 50K 1
TRADITIONAL HEIFER SELECTION WHICH ONES WILL MAKE THE MOST PROFITABLE COWS? Visual Earliest Born Reproductive Tract Score Dam’s Production / Soundness
GENEMAX ADVANTAGE Simple, easy-to-use… Built from the foundation of… Marriage of…
GENEMAX ADVANTAGE FEATURES 1 Three GeneMax Advantage economic index scores that encompass maternal, growth, efficiency & carcass traits 2 SMART Outlier Reporting – identifies extremes for cow costs, docility, tenderness and marbling (top/bottom animals) 3 Sire Match to your Zoetis HD 50K-tested Angus bull battery
GENEMAX ADVANTAGE INDEX SCORES Revenue/cost assumptions consistent with Angus indexes 2 – 8 Cow Advantage Score Conception to Weaning Feeder Advantage Score Weaning to CAB carcass Total Advantage Score Conception to Carcass
ECONOMIC INDEX SCORES Describes Differences in Net Return (1 - 100, higher score better, average = 50) Cow Advantage Cow productivity from heifer pregnancy, calving ease, milk, cow size and growth transmitted to calf Feeder Advantage Postweaning progeny growth, feed intake & carcass merit on CAB grid. Complements GeneMax Focus gain & grade Total Advantage Total genetic contribution for productivity from conception to CAB carcass (Cow & Feeder)
Registered, transferred, Black Angus sire - ideally Zoetis HD 50K tested ≥ 50% Black Angus Dam CAN I USE GENEMAX ADVANTAGE FOR NON-ANGUS COMMERCIAL FEMALES? GeneMax Advantage is for commercial females that are 75% or greater Black Angus breed composition.
HEIFER SELECTION DECISIONS Test heifers at weaning or bangs vaccination Rank and select replacements on Total Advantage Score Exclude outliers for cow cost and/or temperament Allocate to A.I. and/or natural service sires –Complementary mating (balance Cow & Feeder Advantage Scores – correct tenderness & marbling outliers) –Minimize Inbreeding
SUPPLEMENTAL MATERIAL FREQUENTLY ASKED QUESTIONS
AAA/GENEMAX LOGIN - WHAT’S MY MEMBER CODE?
AAA/GENEMAX LOGIN – NAVIGATION & GETTING STARTED
HOW DO I ORDER GENEMAX ADVANTAGE TESTS? 1.Log in to the AAA/GeneMax customer site for information and to order collectors and tests: Available at www.angusonline.org/genemax/logon.aspxwww.angusonline.org/genemax/logon.aspx 2.Obtain sample collectors Blood cards are available from the American Angus Association or Zoetis Genetics Allflex Tissue Collectors are only available through Zoetis Genetics 3.Collect samples Demonstration videos are available on the Zoetis Genetics YouTube channel, as well as via links on the AGI/AAA and CAB websites 4.Send samples to: Angus Genetics Inc. 3201 Frederick Ave. Saint Joseph, MO 64506 Phone: 816-383-5100
WHAT TYPES OF GENETIC SAMPLES ARE ACCEPTABLE FOR GENEMAX ADVANTAGE? Blood or tissue samples Blood cards are available from Angus Genetics Inc or Zoetis Genetics Allflex tissue collectors are only available from Zoetis Genetics Do not use Allflex tissue collectors for GeneMax Focus or HD 50K for Angus
HOW LONG DOES IT TAKE TO GET RESULTS? 3 – 4 weeks from the time samples and order forms are received to available results An email will alert you when the report is available on the AGI website
WHAT IF MY BULLS ARE NOT ZOETIS HD 50K TESTED? Angus bulls must be Zoetis HD 50K tested to enable the Sire Match feature for tested progeny Buy registered, HD 50K tested Angus bulls and request that they be transferred to you to enable seamless Sire Match assignment You may have your registered Angus bulls tested with Zoetis HD 50K either prior to or after progeny are GeneMax tested
TODAY’S HEIFER ECONOMICS Adapted from Hughes, H., 2012. Expansion arithmetic, BEEF Magazine, pp. 12-13. Heifers retained in 2014 will be among the most expensive commercial replacements in history. Replacement females will need to produce and wean more than 4 calves to return a profit.
REFERENCES 1. Correlation between HD 50K genomic predictions and performance, and associated percent explained genetic variation. Genomic Update. American Angus Association and Angus Genetics, Inc., 2013. 2. American Angus Association/Angus Genetics Inc. 3201 Frederick Ave., St. Joseph, MO 64506. 3. Beal WE. 1998. More Milk – What’s It Cost? Angus Journal. November 1998. 4. Beal WE. 1998. Will More Milk Mean Cows won’t Rebreed? Angus Journal. December 1998. 5. CattleFax. 8110 East Nichols Avenue, Suite #301, Englewood, CO 80112. 6. Fox DG, Sniffen CJ, O’Connor JD. Adjusting Nutrient Requirements of Beef Cattle for Animal and Environmental Variations. J Anim Sci 1998;66:1475. 7. McCorkle D, Bevers S. Cow-Calf Enterprise Standardized Performance Analysis. 2009. Available at: http://hdl.handle.net/1969.1/86917. Accessed March 19, 2014.http://hdl.handle.net/1969.1/86917 8. NRC. 2000. Nutrient Requirements of Beef Cattle (7th Revised Edition: Update 2000). National Academy Press, Washington, D.C.