Spokesman William Mabasa said the park had been temporarily assisted by the SA Police Service and the SA National Defence Force.

It had now started recruiting retired staff and other trained rangers to work during the strike.

He said the park had no intention of dismissing the striking workers, who were not represented by a union.

Workers have demanded equal salaries across the board. They believe employees in similar positions should earn equal salaries regardless of varying years of experience or training.

"You can't have exact salaries... there will be variety," said Mabasa.

He said the tourism sector of the park had not been interrupted by the strike and it was business as usual.

"The tourists are not affected and we appreciate that the striking workers have not been intimidating anybody, but we are concerned about rhino poaching," he said.

"Of course, when our rangers go on strike when they know we have a strategy to step up anti-poaching, it feels like the trust is being betrayed as they were also part of the [anti-poaching] planning."

Mabasa said there had been no incidents of rhino poaching since the strike began on February 3