Queensland pig farmers have been offered counselling in the wake of flooding that wiped out large numbers of stock.

Queensland Pork chief executive officer John Coward says some North Burnett farmers risked their lives by wading through waist-deep water to save drowning piglets.

Mr Coward says about 4,000 pigs died and the psychological impacts for farmers have been extreme.

"We had one farm where the farmers recovered 80 per cent of their stock and got it to higher ground and they spent the night on the higher ground with the pigs till the staff were rescued at two in the morning with a helicopter," he said.

"That type of dedication and trauma to those people is quite immense."