Case notes on veterinary investigations in sheep, cattle and other species

2016 Autumn edition of case studies

Sheep

Closantel toxicity in crossbred lambs
Written by: Bruce Watt (Central Tablelands Local Land Services, Bathurst) and Erika Bunker (State Veterinary Diagnostic Laboratory, EMAI, Menangle)
Anecdotally, closantel intoxication causing a low prevalence of death and blindness is occasionally encountered by sheep producers on the central tablelands of New South Wales and elsewhere ... Read More

Phalaris poisoning syndromes
Written by: Associate Professor Peter Windsor, Farm Animal Health, University of Sydney
Phalaris aquatica does have the potential to become a toxic pasture plant, producing a variety of unrelated syndromes which manifest either as neurological or cardiac disturbances ... Read More

Cattle

Wallerian degeneration caused by bovine ephemeral fever in a NSW north coast dairy cow
Written by: Liz Bolin, Casino District Veterinarian
A jersey cow definitively diagnosed as having Bovine Ephemeral Fever was also found to have evidence of a mild, multifocal neuropathy with Wallerian degeneration ... Read more

Other

Omphalitis in layer chicks
Written by: Kate Peffer, District Veterinarian Central Tablelands LLS
Omphalitis, colloquially known as yolk sac infection, is the main infectious cause of chicken mortality in the first week post-hatching and accounts for large economic losses to the poultry industry ... Read more