Thrombocytopenia with tick infestation Unusual presentation: Sudden death of 19 heifers. Above: Significant abdominal and endocardial haemorrhage, with no clots and blood the consistency of weak red cordial. Time and location: Northern Territory, October 2023. Case...
Weaners die from ruminal acidosis Unusual presentation: Rapid deterioration and death of 20 freshly weaned cattle from a mob of 400 within one week. Above: Acidotic rumen fluid and severely ulceration and sloughing of abomasum. Above: Timeline showing feeding regime,...
Gross path challenge #11 Above: Cerebellum from a feedlot steer (photo from Rick Last, DPIRD WA) DESCRIPTION: Multiple randomly distributed varying sized (2 mm to 8 mm diameter) foci of red discoloration of the parenchyma of the cerebellum involving the grey and white...
Heifers collapse in hindlegs with necrotic myositis Unusual presentation: Five young heifers from a mob of 300 Brahman with hindleg collapse. Above: Haemorrhage behind the tibia and ruptured gastrocnemius muscle. Time and location: March 2023, Queensland. Case...
Gross path challenge #10 Photo: Rick Last, DPIRD WA BOVINE MOUTH: The gingiva and dental pad have multiple well demarcated, irregularly-shaped foci of oral epithelial loss exposing reddened submucosa (oral ulceration). There is diffuse periodontal reddening...
