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The Midwest Cattleman · September 30, 2021 · P13
                                            Evaluating Bull Productivity

                                                                                          By Justin Sexten, Performance Livestock Analytics
                                         is based on the opportunity to  ered  applying  the  results  to  sults but in this case the key
                                         manage the individual animal,  the previous generation.              metric was parentage.
                                         a key principle to precision         A recent article in  Agri-         Since multiple bull pastures
                                         animal management.  A goal  culture  by  Gary  Bennett  and  are commonplace for cow-calf
                                         of precision livestock farming  co-workers at the USDA Meat  operations this project sought
                                         (PLF) is to find ways to man- Animal Research Center eval- to understand how implement-
                                         age the individual in a group  uated the ability of genetic  ing a genetic test can provide
         Few commercial producers        setting. Most PLF discussion  testing results to inform man- insights into the variation in
      consider the process of culling    of genetic improvement has fo- agement decisions around bull  calves sired by each bull with-
      bulls based on productivity.       cused on the tested generation.  prolificacy. Genetic testing en-
      The reason, most bulls ulti-       Few experiments have consid- compasses a wide range of re-                         continued on page 16
      mately cull themselves due to
      injury or old age. With the in-
      vestment needed to purchase
      new herd sires, few producers
      look to cull bulls based on calf          Missouri Hereford Association
      performance  so  long  as  they
      continue successfully servicing
         This approach varies by seg-                                    Opportunity Sale
      ment, as seedstock producers
      tend to turn genetics faster,
      with few waiting for bulls to
      cull themselves. Genetic test-            Sunday, December 5, 2021 • Sedalia, MO • Noon
      ing has clearly accelerated the
      genetic advancement process.                                   Offering 70 Lots
      The ability to evaluate poten-
      tial at birth ultimately reduces          Bred Heifers • Show Heifers • Fall Pairs • Open Yearling Heifers • Spring Pair Splits • Herd Bulls
      the number of bulls developed
      to “see how they turn out”.             Breed Leading Sires Represented plus many others
         The value of genetic testing                Churchill Red Bull 200Z • Churchill Kickstart 501C • Chez Dante 652D • R Excitement 4356
                                                      NJW 79Z Z311 Endure 173D ET • /S Mandate 66589 ET • R Leader 6954 • TH Frontier 174E
             Callaway                                    HUTH FTF Torque C002 • MSU TCF Revolution 4R • C&L RR KJ 364C Jalapeno 973E

             Livestock                                                                            Spring Breds

           Center, Inc.                                    Fall Opens

            On I-70, 4 miles east of
        Kingdom City, MO on outer road


             Feeder Sale

               12:30 p.m.

         1st Thursday Night
            of Each Month

                6:00 p.m.

          Special Cow Sale

             Jack Harrison                               Hosted by: Missouri Hereford Association • For more information, please contact
               573-386-2138                     Matt Reynolds -- Secretary/Treasurer -- Huntsville, MO -- 660.676.3788 --

           John P. Harrison                       

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