Have say on vaccine for fatal OJD
Sheep producers are being encouraged to participate in a new survey to help researchers investigating why the effectiveness of the Gudair vaccine for Ovine Johne’s Disease appears to vary on different properties.
The one-page survey is being launched this week as part of a project being funded by Meat & Livestock Australia and led by researchers at The University of Sydney.
Gudair is Australia’s only vaccine for the control of the fatal, wasting disease OJD.
MLA project manager — animal health, welfare & biosecurity Dr Johann Schroder said the survey was intended to investigate variable responses in flocks to the vaccine on some properties.
“One of the discoveries from MLA’s Johne’s Disease research program was that despite regular Gudair vaccination over many years, there are still sheep on some properties that get infected and ill from OJD,” Dr Schroder said.
“Research conducted in the past 15 years has shown that vaccination with Gudair substantially reduces clinical disease, mortalities, and the shedding of bacteria in the faeces, but sheep in some flocks continue to shed and succumb to Johne’s Disease.”
Producers can also participate in the survey at https://www. surveymonkey.com/r/GGZSBJD.