A number of deaths have been recorded on board a live export ship carrying more than 15,000 animals, as it remains in limbo off Fremantle in Western Australia.
The Federal government still hasn't decided where it will go after 30 days at sea.
The Department of Agriculture, Fisheries and Forestry has labelled the ship fiasco a "unique and complex" situation.
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"At this time no final decision has been made by my department officials with respect to the livestock on the MV Bahijah," department secretary Adam Fennessy said.
"We understand the strong interest in this issue from a biosecurity and animal health and welfare perspective."
The MV Bahijah left Australia on January 5 but was forced to return due to tensions in the Red Sea.
It arrived in WA waters almost seven days ago, carrying more than 15,000 cattle and sheep.
Chief Veterinary Officer Dr Beth Cookson confirmed some had died.
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"The information that I have is that there have been a low number of mortalities, that remain well below the reportable mortality rate," she said.
There have also been deaths among cattle that were offloaded and sent to a quarantine facility, with the rest given the all clear.
"These animals are being held under strict biosecurity controls at appropriate premises," Fennessy said.
The Agriculture Department says the decision maker has a number of considerations including export legislation, biosecurity requirements and voyage safety.
WA Premier Rodger Cook urged the Commonwealth to resolve the matter
"Conditions for example in WA are a critical factor, so that's what we're focused on and the priority to make a decision," Fennessy said.