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Let’s Talk                       Matter:  I’ve  been  around  the  has not been          The Midwest Cattleman · March 11, 2021 · P15
                                            Feet, Legs, and Docility  chase a bull who

                                         stockyards long enough that  semen
                                                                                      tested,
              Bulls!                     young bulls get culled for two     unless they have
                                         main reasons; either they have  a surplus of bull
                                         poor foot/leg conformation and  power for every
                                         have become lame, or they are  group of cows.

                                         breeds have added EPD’s re- profit drain for
          By Garth Ruff, Beef Cattle Field   a too crazy to manage. Some  Open cows are a
             Specialist, OSU Extension   garding these traits.    Keep in  every     cow-calf
                                         mind that undesirable traits are  operation. Even
         Being that breeding season      also passed down to the next  if buying a bull
      for most of the region’s cow herd   generation just as easily as de- from a neighbor
      is just around the corner, let’s   sirable ones.                      or friend, make
      talk bulls. Making a bull pur-        Semen Testing: Not many              continued on
      chase is a herd management de-     producers can afford to pur-                 page 31
      cision that should not be taken
      too lightly as selecting the wrong
      bull for your operation could re-
      sult in missed opportunities for
      increased calf revenue for sever-
      al years.
         When discussing bull selec-
      tion, it is important to set some
      goals for your cow herd in terms
      of performance, efficiency, and
      marketing. Often calving ease
      and performance are the first
      two criteria that come to mind,
      because     ultimately    nobody
      wants  to  pull  calves,  (less  of  a
      concern if only breeding mature
      cows) and here in Ohio most
      calves are sold at or post wean-
      ing across the scales. If you don’t
      know what selection criteria are
      important to your operation, it’s
      quite possible you may never
      find the right herd sire. Consid-
      er the following when gearing
      up to purchase your next bull.
         Understand and Utilize
      Genetic  Information: EPD’s
      are a great tool in estimating the
      performance of progeny (calves)
      of a given sire.  When buying
      young,  unproven  sires,  look  at
      the accuracy of the EPD’s. EPD
      accuracies improve if a bull has
      been genomically tested, using
      a DNA analysis test.  Accuracy
      values represent the relation-
      ship between the  “estimated”
      EPD and the “true” EPD of the
      animal.  Values  will  range  nu-
      merically from zero to one.  An
      EPD  with  an  accuracy  value
      approaching 1.0, is more likely
      to represent the true genetic po-
      tential of the bull in question.
         Evaluate the Bulls: I like
      my bulls to look like bulls. Ge-
      netic information can be an ex-
      tremely useful tool when used
      in conjunction with visual ap-
      praisal. If the bull doesn’t have
      the conformation, growth, per-
      formance, toolbox, and skeletal
      structure to match what the sale
      catalog says, or visa versa, there
      is a risk for losing adaptability
      and value within a production
      system.
         Good EPDs + good visual ap-
      praisal = a potential purchase.
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