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Annual ryegrass toxicity in yarded bulls

Annual ryegrass toxicity in yarded bulls

Annual ryegrass toxicity in yarded bulls Unusual presentation: Fifteen bulls with respiratory and nervous signs, three dying within a few days of the onset of clinical signs. Above: A severely affected bull – has a wide-based stance and is unwilling to move....
Bacterial pneumonia in recently-weaned steers

Bacterial pneumonia in recently-weaned steers

Bacterial pneumonia in recently-weaned steers Unusual presentation: Within a week of arriving on a new property, 14 steers died and another 100 were lethargic. Time and location:  November 2020, south Kimberley region in WA. Case definition: Weaner steers that are...
Septicaemia with multi-organ vasculitis and thrombosis

Septicaemia with multi-organ vasculitis and thrombosis

Septicaemia with multi-organ vasculitis and thrombosis  Unusual presentation: Sixteen deaths in a mob of young bulls within a month of arriving on a new property. Above: A depressed, non-responsive bull  – with ticks but no signs of ocular or nasal discharge....
African horse sickness in south-east Asia

African horse sickness in south-east Asia

African horse sickness in south-east Asia African horse sickness is exotic to Australia – but was diagnosed for the first time in southeast Asia in 2020. If it reaches our shores it has the potential to cause high mortality rates in horses as well as having...
From dull to dead – a horse with Hendra virus

From dull to dead – a horse with Hendra virus

From dull to dead – a horse with Hendra virus  Unusual presentation: Horse depressed, breathing rapidly and sweating, with nasal discharge , and swollen eyelids and supraorbital fossae. Above: Hendra-affected lung from CSIRO EAD Field Guide (Images on this page from...