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

2019-20 Summer edition of case studies


Angular limb deformity in young merino rams
Written by: Bruce Watt, Central Tablelands Local Land Services, Bathurst and Patrick Staples, Elizabeth Macarthur Agricultural Institute, Menangle
Young rapidly growing domestic animals are subject to angular limb deformities, in sheep known as 'bentleg' or 'bowie', most commonly affecting the forelimbs of young rapidly growing ram lambs ... Read More

Ruptured cranial mesenteric artery causing sudden death in a late term triplet bearing ewe
Written by: Bruce Watt, Central Tablelands Local Land Services, Bathurst, Gordon Refshauge, NSW Department of Primary Industries, Cowra and Anne Jordan, Elizabeth MacArthur Agricultural Institute, Menangle
In this case, a mature, late-term, first-cross ewe bearing full-term triplets, died from blood loss from a ruptured cranial mesenteric artery ... Read More

Significant losses due to sulphur toxicity in ewes following consumption of gypsum
Written by: Nik Cronin and Belinda Edmonstone, District Veterinarians, Central West Local Land Services, Forbes and Pedro Pinczowski, Veterinary Pathologist, Elizabeth Macarthur Agricultural Institute, Menangle
Sulphur toxicity was confirmed as the cause of death of approximately 200 ewes with the source of sulphur being a pile of gypsum in the paddock in which the sheep were grazing ... Read More

Suspected neurotoxic sudden death in ewes drinking from a farm dam recently treated with copper sulphate to kill blue green algae
Written by: Nik Cronin, District Veterinarian Central West Local Land Services, Forbes and Alan Sharrock, Lachlan Valley Veterinary Clinic, Forbes
This report outlines a case in which approximately 100 young merino ewes died suddenly, following treatment of a dam using copper sulphate, with the cause of death suspected to be a cyanobacterial neurotoxin ... Read More


Arsenic toxicity in cattle with access to burnt treated posts after bushfire
Written by: Mark Corrigan, District Veterinarian, Albury, Murray Local Land Services
This case highlights the dangers posed by the burning of arsenical-treated posts which can leave an ash that is attractive to cattle ... Read More

Bovine ephemeral fever
Written by: Megan Davies, District Veterinarian, Narrabri
Bovine Ephemeral Fever is an arthropod-borne rhabdovirus that is generally only seen when seasonal conditions are conducive to the spread of mosquitos and other biting insects ... Read More

Low dietary protein resulting in calf losses in the NSW Southern Highlands
Written by: Henry Clutterbuck, District Veterinarian, Goulburn, South East Local Land Services
Correct dietary formulation is vital for young stock to ensure adequate growth rates and development, with protein being particularly important for growth and immune function ... Read More


African swine fever - The NSW approach 2020
Written by: Eliz Braddon - ASF Program Lead, NSW Department of Primary Industries
African Swine Fever, endemic in sub-Saharan Africa, in 2007 spread to Georgia and the Caucasus, then across Europe and Russia, in 2018 it was confirmed in China, the majority of countries in southeast Asia have been impacted, and it was confirmed in Papua New Guinea at the time of writing... Read More



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