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Sudden death of heifers due to Tick Fever

Sudden death of heifers due to Tick Fever

Sudden death of heifers due to Tick Fever Unusual presentation: Eleven heifers became lethargic and weak, and then died within 24-48 hours. Above: Post mortem found jaundice throughout the carcass, an enlarged liver and abnormal spleen.Below: Timing of management...
Sudden death due to probable urea toxicity

Sudden death due to probable urea toxicity

Sudden death due to probable urea toxicity Unusual presentation: 100 of 3000 Brahman cattle found dead. Above: Heifer in lateral recumbency with mild head and neck tremors Time and location: August 2023, WA​​. Case definition: Cows and bulls found dead in a paddock,...
Thrombocytopenia with tick infestation

Thrombocytopenia with tick infestation

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

Weaners die from ruminal acidosis

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,...
Heifers collapse in hindlegs with necrotic myositis

Heifers collapse in hindlegs with necrotic myositis

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...