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

District Veterinarian Conference 2023


Almost gone but not forgotten - the human impact of OJD
Written by: Bill Johnson, Gunning, Former District Veterinarian, Goulburn
OJD impacted owners of infected flocks, their families, neighbouring landholders, livestock agents, livestock husbandry and shearing contractors, livestock carriers, abattoir managers, saleyards operators, veterinarians and biosecurity officers ... Read more

Prepartum vaginal prolapse and dystocia in Babydoll Southdown ewes
Written by: Lou Baskind, South East Local Land Services, Braidwood
This case report details an unusual occurrence of prepartum vaginal prolapse and dystocia in sheep, and a possible association with deficiency of Vitamin D ... Read More

Sheep & Cattle

FMD in South-East Asia
Written by: Peter Windsor, Production Animal Welfare & Health Services
FMD has been observed in South-East Asia for 150 years and remains endemic, with generally piecemeal control measures until an integrated approach was initiated ... Read more

Investigating suspected inherited neurologic conditions in ruminants
Written by: Leah Johnson1,2, Imke Tammen2, Mark Krockenberger3, Brendon O'Rourke1 and Katie Eager1,2
1 Elizabeth Macarthur Agricultural Institute, Department of Primary Industries, NSW
2 School of Veterinary Science, The University of Sydney, Camden, NSW
3 School of Veterinary Science, The University of Sydney, Camperdown, NSW

Our knowledge on inherited diseases and traits in animals is rapidly increasing with more than 298 bovine and 118 ovine single locus diseases and traits reported ... Read more


Aspects of yersiniosis; what happened in 2022 in NSW
Written by: Erika Bunker, Elizabeth Macarthur Agricultural Institute, Menangle NSW
In the unusual winter season of 2022, characterised by persistent wet weather and flooding in many parts of NSW, a peak in outbreaks of yersiniosis was experienced by field veterinarians ... Read more

Cattle parasites - what's new?
Written by: Dr Peter Rolfe, BVSc, Dip Vet Clin Studies, PhD, District Veterinarian, Yass
There is a wealth of historical data and studies that have examined the epidemiology and control of internal and external parasitism affecting cattle ... Read more

Hemlock poisoning of Wagyu steers in the Northern Tablelands
Written by: Dr Samantha Boland, District Veterinarian, Inverell LLS, Dr Meg Parsons BVBiol BVSc, District Veterinarian, Glen Innes LLS and Dr Andrew Biddle, District Veterinarian, Inverell LLS
Upon investigation approximately one quarter of the stock were found to be extremely agitated and running through fences, with deceased animals on the fence line ... Read more

Importance of Nitroxynil for control of liver fluke and barber's pole worm in Australian beef cattle
Written by: Matt Ball, Virbac Australia
Nitroxynil is a unique narrow spectrum anthelmintic useful against the growing emergence of multi-drug resistant liver fluke and barber's pole worm ... Read more

Know your screw-worm flies
Written by: Narelle Sales, Microbiology and Parasitology - Research, NSW DPI, Elizabeth Macarthur Agricultural Institute, Menangle
The only parasitic insect that is on the NAQS list of target pests, diseases and weeds is the Old World Screw-Worm Fly ... Read more

Lumpy skin disease exclusion - a case study
Written by: J McNally
The case in question was a heifer in a feedlot with raised skin lesions across the body, found during a routine weighing procedure ... Read more

Observations on lumpy skin disease in Indonesia
Written by: Peter Windsor, Production Animal Welfare & Health Services
In the week of 12-17 December 2022, I visited Java to gain an understanding of the recent spread of LSD of cattle from Riau to Central Java in Indonesia ... Read more


The feasibility of composting animal carcasses in NSW in an emergency animal disease response
Written by: Kevin Wilkinson, Director, Frontier Ag & Environment and Byron Stein, Policy & Project Officer, Animal Biosecurity, Department of Regional NSW
For the first time in Australia, the applicability of carcass-grinding and composting was evaluated for mass disposal in an emergency animal disease outbreak ... Read more

Flock & Herd, an open access website of livestock health case reports
Written by: Bruce Watt, Central Tablelands Local Land Services, Bathurst and Peter Frecklington, Crowther
The Flock & Herd website publishes online articles highlighting disease investigations in sheep flocks, cattle herds and other livestock ... Read more

Foot-and-mouth disease preparedness and zoos
Written by: David Blyde, Debra Doolan and Michelle Campbell-Ward, NSW Department of Primary Industries
No known incursions of foot-and-mouth disease have been made into Australia in over 150 years ... Read more

MAX as a Case Management System in an Emergency Animal Disease (EAD) Response
Written by: Alliza Bartley, NSW DPI
MAX has been selected to be the National Case Management System used to capture intelligence for all Emergency Responses ... Read more

Plus ça change, plus c'est la même chose
Written by: Dan Salmon, retired District Veterinarian
The public animal health service of NSW has a proud history of achievement in the control and eradication of infectious diseases in domestic livestock ... Read more

Surveillance for changing endemic diseases
Written by: Shaun Slattery, District Veterinarian, North West Local Land Services
The minimal additional resources required to monitor for changes in endemic diseases suggests we are underfunding endemic disease surveillance ... Read more

Walking on the dark side - the highs and lows of product development
Written by: Dr Peter Rolfe, BVSc, Dip Vet Clin Studies, PhD, District Veterinarian, Yass
The paths for a commercial product being available on the shelf are often tortuous, serendipitous or can just be lucky accidents ... Read more

Wildlife necropsy technique
Written by: Nicole Dobson, Karrie Rose, Heather Fenton and Jane Hall, Australian Registry of Wildlife Health, Taronga Conservation Society Australia
Wildlife necropsies can be approached in a similar fashion to domestic species, with the major points of difference emanating from ... Read more



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