Flock and Herd logo

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

District Veterinarian Conference 2016



Brucella ovis as cause of abortion
Written by: Rahul Shankar, DV Young and Jillian Kelly, DV Coonamble
A producer noticed several aborted fetuses about his lambing paddock, stocked with 3-4 year old ewes. ... Read More

Chlamydia serological study in a commercial sheep flock
Written by: Evelyn Walker, District Veterinarian Central West LLS (Dubbo) and Assoc. Prof. Adam Polkinghorne, Centre for Animal Health Innovation, University of the Sunshine Coast
Chlamydia pecorum, commonly isolated from the gastrointestinal tract, is ubiquitous in livestock globally. In sheep it is mainly associated with keratoconjunctivitis and polyarthritis but also implicated in respiratory disease, abortions and enteritis ... Read More

Laboratory detection of Fasciola hepatica in live sheep
Written by: Rob Woodgate, Tara Cassidy and Stephen Love
In this paper we briefly review testing options and report some of the results to date in evaluating a faecal antigen ELISA test as an alternative for checking live sheep for F. hepatica ... Read More

Neonatal lamb mortality
Written by: Scott Ison, Murray Local Land Services, Albury
Lamb survival in Australian flocks has become a focal point of industry groups and researchers in recent years. The recent MLA report listed Neonatal Lamb Mortalities as the most costly of 17 cattle, 23 sheep and nine goat diseases ... Read more

Oesophagitis mortalities
Written by: Andrew Peters, Timothy Biffin, Emma Croser and Janet Wild
Sudden death was reported in 22 of 2100 merino crossbred weaner lambs (3-4 months old) showing symptoms that were rapidly progressive, including weakness, altered mentation, ... Read More

Ovine respiratory disorders - a global overview
Written by: Peter Windsor, Professor Emeritus, Faculty of Veterinary Science, University of Sydney
Throughout the world, the most common respiratory disorders of sheep are rhinitis/sinusitis and pneumonia, caused by a wide range of host-pathogen-environment (HPE) interactions that reflect the various sheep husbandry systems used in different countries ... Read More

Yersinia pseudotuberculosis enteritis in adult sheep
Written by: Nigel Gillan, District Veterinarian, Mudgee
While Yersinia enteritis is known to occur in adult sheep, most reports focus on the disease in younger animals, and recent work has sought to clarify the role of Y. pseudotuberculosis and Y. enterocolitica in a weaner scours syndrome ... Read More

Zinc phosphide toxicity in crossbred ewes
Written by: Gabrielle Morrice, DV Narrandera
Zinc phosphide is a rodenticide used to treat grain, and used extensively in recent mice plagues to control mice damage in crops through perimeter baiting of crops ... Read More


Cattle nematodes on the mid-north coast of NSW
Written by: Jim Kerr, District Veterinarian, Paterson
Investigation of weight loss in cattle in the Taree and Gloucester districts of NSW sometimes implicates gastrointestinal worms as a likely cause ... Read more


Antibiotic resistance in food animals - national and international developments
Written by: David Jordan, Principal Research Scientist, NSW Department of Primary Industries, Wollongbar, NSW
Antimicrobial resistance and antimicrobial usage has been a contentious issue at the nexus of animal and human health for over 50 years. The discovery of methicillin resistant Staphylococcus aureus in the UK hospital system in 1960 first brought ... Read more

Australian bat lyssavirus update
Written by: Paul Freeman, NSW DPI Wollongbar
Australian Bat Lyssavirus is endemic in both insectivorous bats and megabats of Australia, where the prevalence in wild populations is estimated at less than one percent but in bats that are showing neurological signs a much higher prevalence occurs ... Read more

Canine article removed for academic purposes

Challenge of biosecurity in periurban areas - a case study
Written by: Kate Sawford, South East Local Land Services
The periurban environment poses unique animal biosecurity challenges including a large concentration of migrant communities, with a range of common languages spoken at home and religious affiliations, farms are small both in terms of area and livestock numbers and lack proper handling facilities, and knowledge of regulations governing the ownership and sale of stock ... Read more

Diseases of alpacas
Written by: Patrick Staples, State Veterinary Diagnostic Laboratory, EMAI, Menangle
This paper attempts to provide an introduction and overview of some of the diseases of alpacas that may be seen in Australia ... Read more

Henipavirus outbreak in the southern Philippines, 2014
Written by: Debbie Eagles, CSIRO Australian Animal Health Laboratory (CSIRO AAHL)
This paper describes the investigation of an outbreak of neurological disease with high case fatality amongst people and horses in southern Philippines in 2014 ... Read more

Introducing Brucella melitensis
Written by: Bruce Watt, Central Tablelands Local Land Services, Bathurst
Worldwide, brucellosis remains a major source of disease in humans and domesticated animals. In humans, ovine/caprine brucellosis caused by B. melitensis is by far the most important clinically apparent disease ... Read more

Pinery fire in South Australia 2015 - Lessons learned
Written by: Nigel Baum, PIRSA Biosecurity SA Animal Health, Clare SA
The fire began near the Adelaide Plains grain-growing locality of Pinery, 70 kilometres due north of Adelaide's centre, at midday on Wednesday 25 November, 2015. With winds reaching 100 km/h, the fire rapidly spread ... Read more

Red Racer disease
Written by: Dr Jillian Kelly, Regional Veterinarian CWLLS
In August 2015, Central West Local Land Services ran a mock Emergency Animal Disease Exercise in the Dubbo area ... Read more

Response to bushfires: NSW perspective
Written by: Elizabeth Braddon, Local Land Services, Riverina
In Southern NSW, bushfires are a considerable risk to livestock producers and rural communities almost every year.As a veterinarian with the Local Land Services, we are typically contacted to assess and perform humane destruction of livestock that are affected ... Read more

Smallholder livestock producers in Australia - biosecurity and knowledge transfer | Posted March 2016
Written by: M Hernández-Jover, L Hayes, J-A LML Toribio, R Woodgate, L Rast
Practices of smallholder livestock producers are perceived to pose biosecurity risks. The aim of the current study was to investigate biosecurity, disease management and communication networks of smallholder producers ... Read more



All site contents and design Copyright 2006-2024©