The Jaundzirnavnieki company had about 80 fallow deer at an enclosure but only eight are left. Some of the creatures still at the farm are injured.
Owners were away at an exhibition in Berlin at the time of the bloody incident. They say they had checked the enclosures just a day before leaving for Germany.
This was one of the largest herds of fallow deer in Latvia, and for ten years the owners bred the deer for necessary qualities. "We have to start from scratch. The disaster has struck us today, but any other deer herder or farmer might be next. No one is protected from stray dogs," said the farm's representative Gunita Štorha.
Police are investigating the incident, while the owners say they suspect other people were involved.
After the owners returned, they found a single stray dog and shot it. It was not chipped so could not be identified as belonging to any human.
A gruesome detail, but it is reported locals had spotted the calamity before the owners had returned, and instead of notifying the authorities they had scaled the enclosure and filmed the incident.