By Michael Salini

Deakin University researchers recently finalised an experiment as part of a 2024 MAAP Linkage grant initiative. This research grant was secured to conduct a novel investigation into the composition of Atlantic salmon using a non-destructive method, dual energy x-ray absorptiometry (DXA). Linkages were made between the Deakin schools of Life and Environmental Science and Information Technology, as well as external collaborators at the University of Melbourne.

Dual energy x-ray absorptiometry

“Traditional methods of understanding composition in fish are centred around destructive sampling, followed by a suite of chemical analyses in the laboratory.”

The chemical methods can be laborious, time-consuming, and require specialised equipment and trained staff. The successful implementation of DXA scanning technology could improve the accuracy of analysis, as well as the added benefit of being rapid, with each fish scan taking only a few minutes. The beauty of this technique is also in that the equipment is portable, “it is sitting in the back of a truck“, in other words, it’s a mobile laboratory.

Lead chief investigator Dr Michael Salini, External investigator Dr Kristy Digiacomo (University of Melbourne) and Ms Jayde Kirkham (university of Melbourne (L-R)

“In the future, we hope to develop reliable calibrations of the initially gathered data, that may allow us to greatly reduce, the need for traditional sampling methods, leading to better welfare outcomes for Atlantic salmon”

Co-lead chief investigator Dr Aaron Spence

Thanks to the team of helpers who assisted with their efforts on Friday (2^nd August) and a report will be finalised in the near future to wrap up the project.