A farmer discovered 50 dead lambs while checking on their livestock over the weekend.
The Irish Farmers Association is calling for stronger regulation on dog ownership.
It's after an Offaly farmer lost 50 sheep in a dog attack at the weekend.
John Healy fears the dogs will kill again.
Gardaí are investigating the incident, which took place in the early hours of Saturday morning in Moneygall.
20 sheep were also killed in an attack in Kildare, while there has been reports of other incidents in Tullamore and Borris on Ossory.
The Moneygall man says his two sons witnessed the aftermath of the massacre:
Read more: *GRAPHIC CONTENT* 'It Was A Slaughterhouse'
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