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Thrombocytopenic purpura in lambs given bovine colostrum
  1. VR Simpson and
  2. SH Done
  1. Veterinary Investigation Unit, Polwhele, Truro, Cornwall.


Newborn lambs which had been given colostrum from a single cow developed thrombocytopenia and seven died. The clinical signs included purpura, haemoglobinuria, melaena, dullness and lethargy. The lambs died at one to two days old. Post mortem examination revealed widespread haemorrhages throughout the body. Lambs given small amounts of colostrum developed a transient thrombocytopenia but did not die.

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