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A Yersiniosis outbreak in cows and weaners

A Yersiniosis outbreak in cows and weaners

A Yersiniosis outbreak in cows and weaners Unusual presentation: 43 of 170 animals became lethargic, had diarrhoea and 16 died within 48 hours of the onset of clinical signs. Above: Affected animals became lethargic, dehydrated and had abdominal pain. Time and...
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....
Hendra virus facts and resources

Hendra virus facts and resources

Hendra virus facts and resources Hendra virus can produce life-threatening illness in horses and humans: to date about 80% of infected horses and 60% of infected people have died. Above: Oedematous lung from an HeV case (similar to the pathology caused by African...
Rectal haemorrhage and sudden death – possible JHS

Rectal haemorrhage and sudden death – possible JHS

Rectal haemorrhage and sudden death – possible JHS  Unusual presentation: Severe milk drop in dairy cows, 13 of 700 head affected, 3 dying within 24 hours of showing signs. Above: Two cows post-mortemed had extensive haemorrhages across all serosal surfaces....
Lantana poisoning in yearling heifers

Lantana poisoning in yearling heifers

Lantana poisoning in yearling heifers  Unusual presentation:  Acute illness and buccal erosions in young heifers. Above: Lesions under the tongue are sometimes the only signs of photosensitisation in cattle with pigmented skin as this area is exposed to sunlight when...