Traumatic process: A rack of blood samples for bovine TB. Photo: Getty Expand

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Traumatic process: A rack of blood samples for bovine TB. Photo: Getty

Traumatic process: A rack of blood samples for bovine TB. Photo: Getty

Traumatic process: A rack of blood samples for bovine TB. Photo: Getty

Everyone has had an animal that they regret selling the second the deal is done. For us, that was a pure-bred Hereford heifer called Marjorie last year.

She was the Naomi Campbell of Herefords, with looks, legs and a backside that could stop traffic.