How do we select a top sire?

category Genetics

Ever wondered how CRV Ambreed selects a top sire? Here’s a quick snapshot of how it works:

  • CRV Ambreed’s sire analysts travel around the country to find the very best cows that will produce the next ‘super bull’
  • About 1,500 bull calves are nominated each year for consideration into CRV Ambreed’s progeny test programme
  • The top 600 of the 1,500 bull calves go through a genomic selection process to assess their potential genetic gain and identify any genetic defects
  • CRV Ambreed’s breeding team use their specialist knowledge of cows and their families to assess the potential of each bull calf
  • 120 bull calves are selected to be part of CRV Ambreed’s progeny test programme
  • The progeny test bulls’ semen production is carefully managed from CRV Ambreed’s production and logistics centre
  • Semen collected from the 120 progeny test bulls is distributed to contracted progeny test herds around New Zealand
  • The progeny test bulls’ daughters are herd tested to measure their milk production and type, and they are evaluated for their suitability in different farming systems and environments
  • The very best bulls graduate who provide the highest genetic gain for dairy farmers and produce the cows they love to milk

It takes four years for a sire to receive its proof. If he turns out to be the next Firenze, one of CRV Ambreed’s legacy bulls, he could produce more than half a million doses of semen for domestic and international sale, have tens of thousands of daughters, and have a long list of sons enrolled on the animal evaluation database for herd improvement in New Zealand.

If you are interested in nominating a bull calf this year for CRV Ambreed’s breeding programme, contact us on 0800 262 733.

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