Page 9 - Commercial Suffolks 2019
P. 9

A Suffolk ram bred as part of the Ortum Flock in Lincolnshire

 leads for Muscle Depth EBV in the RamCompare Results
 op ram for Muscle Depth Estimated   From the two years of data collected
 Breeding Value (EBV) on RamCompare   at Hutts Farm, shown in the chart, you
 T this year is Suffolk ram 78X:17:00839   can see the strong correlation between
 bred by Richard Garner’s Ortum flock based   the Muscle Depth EBV of the sire with
 near Horncastle, Lincolnshire. He is one of the   the progeny’s adjusted muscle depth
 highest ever recorded in the first four years of   measurement.  Ortum  78X:17:00839
 the project and has been used for two years   clearly had the highest Muscle Depth
 at Hutts Farm based in Ripon, Yorkshire which   EBV when compared with other rams on
 is one of the RamCompare commercial farm   test (a combination of Texels, Charollais
 partners. Their organic North of England   and Meatlincs).
 Mule flock lambs outdoors in May, with
 lambs finished off forage wherever possible.   The genetic progress seen in the Ortum
 Sires, including the Ortum Suffolk ram, were   flock makes them a leading recorded
 selected with high levels of muscling to   Suffolk flock for this trait. It is not just
 compliment these maternal genetics.  the EBVs, which have gone up – the
 physical measurements collected have
 For Richard, the use of ultrasound scanning   increased over time too. The average
 to select sheep for superior muscle depth   Ortum lamb today has an extra 2mm
 has been a major breeding objective and   of muscle at scanning (compared to
 within the Suffolk breed, 78X:17:00839 sits   2002-2005), which might sound modest
 in the top 1% for Muscle Depth EBV – as well   – but is equivalent to an increasing in
 as being Top 1% for CT Lean Weight and   muscling of around 5-7% of the overall
 Terminal Sire Index.   carcase. ■
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