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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....
Yellow-wood poisoning of heifers

Yellow-wood poisoning of heifers

Yellow-wood poisoning of heifers Unusual presentation: Nineteen heifers showing neurological signs and dying within the space of a week. Above: Both heifers had widespread jaundice and swollen livers and kidneys​. Time and location: March 2021, mid coast Queensland....
Acute oxalate poisoning of merino ewes

Acute oxalate poisoning of merino ewes

Acute oxalate poisoning of merino ewes Unusual presentation: 70 mature merino ewes found dead and another 12 recumbent within 4 days. Time and location:  February 2021, central west Queensland​. Case definition: Ewes (6-10 weeks after joining) become weak, show signs...
Bovine hypertensive syndrome in mature cows

Bovine hypertensive syndrome in mature cows

Bovine hypertensive syndrome in mature cows Unusual presentation: Thirteen cows died or became recumbent within two weeks of being drafted and put onto supplementary feed. Time and location:  November 2020, northern WA​. Case definition: Ataxia, recumbency and death...