Zamia staggers in heifers and weaners Unusual presentation: Loss of hindquarter coordination in young cattle. Zamia staggers Watch video clip (from Lee Taylor) Time and location: Aug-Dec 2018, Katherine NT. Case definition: Sporadic cases of hindleg ataxia in Brahman...
Murray Valley Encephalitis (MVE) in a stock horse Unusual presentation: This was the second horse on a station to have persistent neurological signs in 3 weeks. The investigation was approved as an SDI as: several notifiable diseases of horses can present as...
Tick fever deaths in a holding yard Unusual presentation: Unexplained death of 13 bulls in a holding yard – involving multiple consignments from the same source over a 6 week period. Above: Capillaries in the brain concentrate erythrocytes containing the organisms...
Early weaning plus BRD and monensin toxicity Unusual presentation: Separation, changes in diet and increases in stocking density are stressors at weaning. This disease event was regarded as significant due to the large number affected – 100 becoming sick and 40...
Calf deaths in a dairy herd due to salmonellosis Unusual presentation: Diseases in dairy calves are commonly diarrhoea in the first month of life and Enzootic Calf Pneumonia – but features of this disease outbreak were there were very few signs of diarrhoea or...
