Article Text

Sawfly poisoning in sheep and goats
  1. SM Thamsborg,
  2. RJ Jorgensen and
  3. E Brummerstedt
  1. Department of Internal Medicine, Royal Veterinary and Agricultural University, Copenhagen, Denmark.

Abstract

In September 1984 some sheep in a flock of 250 suffered depression, anorexia, incoordination and difficulty in rising; 50 ewes and weaners died. Post mortem examination revealed petechial bleeding, massive acute liver necrosis and in some animals degeneration of the kidney tubules. The rumen and gut contained many larvae of the blue-black birch sawfly (Arge pullata). Laboratory and field observations indicated that these were the cause of the illness.

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