24 February 1998
PPL produces cloned calf

PPL Therapeutics has cloned a bull-calf called Mr Jefferson. The same company produced Dolly the sheep.

The calf was cloned from an embryos cell, unlike Dolly who was a clone of an adult sheep.

Mr Jefferson is a 981b Holstein. PPL plans to produce cows whose milk contains human serum albumin, a component of blood.

  • Financial Times 24/02/98 page 25
  • The Daily Telegraph 24/02/98 page 11, page 26 (The Market)
  • The Scotsman 24/02/98 page 9
  • The Independent 24/02/98 page 1
  • The Guardian 24/02/98 page 5
  • The Times 24/02/98 page 6