Page 12 - Ranui Angus 2021 ebook
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HDT Index (heifer/dairy terminal)

                          New Zealand Angus Heifer/Dairy Terminal Index - Predicted Response



           Expected Change in Individual Traits










              CEd  CEm  GL  BW  200W  400W  600W  MCW  Milk  SS  DC  Cwt  EMA  Rib  Rump  RBY  IMF

             Above the 0 line (X axis) selects for more positive numbers and below the line selects for more negative numbers.
        For some traits (e.g. growth), a positive response is desirable and for others (e.g. days to calving), a negative response is desirable.

       This index is primarily driven by getting live calves on the ground, and producing an early maturing prime animal with
       added carcase traits for improved carcase yield and marbling with no direct selection for maternal traits.

       NB. It is important point to be aware that while no emphasis has been placed on some traits, for example
       maternal traits in the HDT, they still may be selected for indirectly through positive or negative correlations with
       other traits, as is the case with Days to Calving in the HDT.






























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