Page 9 - SevenHills Angus 2021 Catalogue eBook
P. 9

2021 TRANSTASMAN ANGUS


                 CATTLE EVALUATION EBV TRENDS


                                    Graphs of the Seven Hills herd compared with
                             Transtasman Angus Cattle Evaluation breed average EBVs








                                                                                         Seven Hills Herd
                                                                                         New Zealand Breed Average




             2                                                         Intramuscular Fat EBV (%)

           1.5                                                         This is an estimate of the genetic difference in the
                                                                       percentage of intramuscular fat at the 12/13th rib site in
         EBV  1                                                        a 400 kg carcase.  Depending on market targets, larger
                                                                       more positive values are generally more favourable.
           0.5
             0

              00        04         09          14          20
                               CALVING YEAR





                                                                       Mature Cow Weight EBV (kg)
            90
            80                                                         This is based on the cow weight when the calf is
                                                                       weighed for weaning, adjusted to 5 years of age.  This
         EBV  70                                                       EBV is an estimate of the genetic difference in cow
                                                                       weight at 5 years of age and is an indicator of growth
            60
                                                                       at later ages and potential feed maintenance require-
            50                                                         ments of the females in the breeding herd.  Steer
                                                                       breeders wishing to grow animals out to a larger
            40                                                         weight may also use the Mature Cow Weight EBV.
               00       04          09          14         20
                               CALVING YEAR





                                                                       AngusPure Index ($)
           160
           140                                                         Estimates genetic differences between animals in
                                                                       net  profitability per cow joined for a self-replacing
           120
         INDEX  100                                                    commercial Angus herd, targeting the production of
                                                                       grass finished steers for the AngusPure programme.
                                                                       Steers are assumed marketed at 525 kg live weight
            80                                                         (280 kg carcase weight and 10 mm fat depth) at 18
                                                                       months of age with a significant premium paid for
            60                                                         marbling.
              00        04         09          14          20
                               CALVING YEAR




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