Former member for Hinchinbrook Andrew Cripps,who lost his seat at the November poll toKatter's Australian Party's Nick Dametto - who came third in the primary vote - argued for a return to optional preferential voting.
"The bastards finally got me,"he said.
"I'm afraid the Hinchinbrook formula will now be applied to other seats across this state where parties who oppose us are going to field a number of candidates from Labor and other ratbag parties named after people with very large egos.
"And they will preference in a circle and it doesn't matter who wins it but the LNP won't."
LNP members rejected abortion reform in Queensland
Ahead of the abortion debate reigniting in state politics,LNP members voted to reject any attempts to change existing abortion legislation in Queensland,with almost every person in the room supporting the resolution.
Abortion is in the Criminal Code in Queensland.
Senator Amanda Stoker told the convention a society must be judged by the way it treated those who could not speak for themselves.
"The previous speaker indicated that there were circumstances where a woman has no choice but to abort,"she said.
"But we all have choices and our duty as a society is to try to do all we can to give people a real choice,the support they need to be able to raise a child and not feel like they've only got one deadly option available to them."
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The Queensland Law Reform Commission has handed a report on abortion to Attorney-General Yvette D'Ath,following alengthy investigation into reform.
It is understood a government bill on abortion could be tabled in August.
A Young LNP resolution calling on the federal coalition government to strip funding from NGOs which provided abortion services was not debated due to time constraints.
Another contentious resolution,opposing euthanasia or assisted suicide legislation,passed.
Following an"urgent"motion,the convention also rejected efforts by the Greens to stop the Lord's Prayer from being recited at the start of Senate sittings.
Senator Matt Canavan said everyone could share ideas such as forgiving others and being humble.
"Whether or not you come from a Christian heritage or not,I think the sentiments that are included in the prayer is something that is a shared heritage and insight for a western civilisation like ours,"he said.
On Sunday,LNP leader Deb Frecklington addressed the party faithful,criticising Labor over trains,taxes,health,crime and debt,while saying the LNP needed to connect with more young people and women.
"It is only 846 days to the next election and we cannot afford to waste a single day,"she said.