"I just wanted to make it known that this has happened and that dog owners need to lock up their pets," she said.
"The dogs aren't to blame for attacking other animals, it's the owners."
She was very angry about the attack, which traumatised her alpaca.
"There was blood everywhere, it had teeth marks around its neck and a big gash on its leg."
The woman, who lives on the outskirts of town, says she has heard of two other cases of pets being attacked in their yard by dogs.
Tararua District Council's animal control officer was called and police were notified.
Neither would comment on the incident before the dog owner appeared in court.