The sheep have been held at a quarantine controlled feedlot near Adelaide for more than a week after spending about 10 days on board another carrier ship which broke down and was forced to return to port.
They will be loaded on to the replacement ship, the the MV Al Shuwaikh, today.
Animals Australia Executive Director Glenys Oogjes says protesters will gather at the port gates calling for the sheep to be spared the suffering and cruel slaughter in the Middle East.
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She says due to the already excessive handling of these remaining sheep they'll be more vulnerable to starvation and salmonella infections.
"Many will suffer and die on this further long voyage, of that we can all be deadly certain.
"That the exporter has ordered this reloading is unforgivable."
