Avian Flu Surveillance Zone restrictions that were in place in Co Monaghan for a number of weeks have been lifted.
The restrictions were introduced last month after outbreaks of avian flu in two commercial flocks that led to the culling of 8,000 birds.
The action comes as no further cases of avian flu were detected in commercial poultry flocks, although the Department of Agriculture said there are continuing cases of avian influenza infection and deaths in the wild bird populations.
Poultry farmers are being urged to maintain bio security measures and keep commercial flocks housed as we are still in the high risk period for avian influenza.
Meanwhile, the Deputy Chief Veterinary Officer at the Department of Agriculture Dr June Fanning has said that the risk of avian flu "remains high".
Dr Fanning warned that poultry owners still need to be vigilant.
Speaking to RTÉ's News at One, Dr Fanning said: "The risk does still remain high throughout the country, so we do have our housing measures and our stringent by-security measures remaining in place to try and help protect all of the flocks from risk of disease that is out there from wild birds."
She said that in particular the virus "survives longer" in the colder weather.
Positive cases are still being identified in wild birds.
"We are still getting positive wild bird findings throughout the country," she said.
She said that this is something that they would expect to see at this time of year, "because the migratory birds are still here and they bring the virus over with them".
