September 24, 2023


Food Information

UQ researchers growing venereal illness vaccine

2 min read

THE impacts of a venereal illness that causes cattle infertility and prices the business a whole lot of tens of millions of {dollars} could possibly be mitigated by an experimental vaccine created at The College of Queensland.

 Megan Pope

Professor Ala Tabor. Credit score: Megan Pope

Professor Ala Tabor from the Queensland Alliance for Agriculture and Meals Innovation mentioned vaccines for the bovine trichomoniasis protozoa can be found abroad, however not in Australia.

“If you import a vaccine, it must be quarantined and the animals handled with it aren’t allowed into the meals chain, so it’s extra environment friendly and sensible to fabricate the vaccine in Australia,” Professor Tabor mentioned.

“If we will get native strains of the illness and develop them right into a vaccine, it’s efficient, safer and simpler – there’s no quarantine and the animals can enter the meals chain.”

The work was prompted by the outcomes from a survey for the illness led by Professor Michael McGowan from UQ’s Faculty of Veterinary Science, revealing that bulls at abattoirs from all of Australia’s main beef breeding areas, and multiple in 10 bulls in northern areas, have been contaminated.

“Bovine trichomoniasis is attributable to a protozoa carried by bulls and is transmitted to females throughout mating,” Professor Tabor mentioned.

“This could make cows infertile or trigger them to abort.”

QAAFI Senior Analysis Fellow Dr Kieren McCosker helped gather samples from bulls’ reproductive tracts.

These samples have been then cleaned and analysed.

“If a profitable vaccine is developed out of this, it could possibly be an essential growth,” Dr McCosker mentioned.



“In North Australian beef herds, losses from confirmed being pregnant to weaning are sometimes within the order of 5 to fifteen % and are estimated to value the business between $60 and $100 million a 12 months.

“Whereas not solely accountable, on the stage of prevalence not too long ago reported for bovine trichomoniasis, the illness is more likely to be contributing to this reproductive inefficiency.

“Having a vaccine for beef producers to assist handle that may be a really welcome consequence.”

The vaccine candidate was examined in a small group of bulls and was profitable.

Professor Tabor is now working with Meat & Livestock Australia (MLA) and industrial business companions to conduct bigger trials.

The work was carried out by researchers at QAAFI’s Centre for Animal Science, UQ’s Faculty of Veterinary Science and workers at Pinjarra Hills Analysis Facility, with the help of MLA.

Supply: College of Queensland













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