Volgmann, 30, who served as a dog walker, performed sexual acts with the animals while they were in his care, the Moncton provincial courtroom heard on Friday.
The corrupting morals charge involved making bestiality images available to the public on the internet.
A woman with the American SPCA found pictures of a man performing sexual acts with dogs posted on a bestiality website and alerted police in Moncton, said Crown prosecutor Renée Roy.
Officers seized cameras, memory cards, a laptop, hard drive and a USB drive from Volgmann, who is unemployed and lives with his grandmother.
Investigators found pictures of Volgmann performing sexual acts with dogs, as well as pictures of dogs, said Roy.
She and defence lawyer Jean Trahan made a joint recommendation that Volgmann, who was found fit to stand trial last month following a psychiatric assessment, be sentenced to two years of supervised probation.
They also recommended several strict conditions, banning him from owning or being near dogs.
Provincial court Judge Jòlene Richard adjourned sentencing until Feb. 7.
Volgmann was arrested at his home in September after an investigation by the SPCA and the RCMP.
The incidents occurred between January and September of last year, according to the RCMP.