Thousands of mink and about 100 foxes are being kept in deplorable conditions on a mink farm in the Monteregie.
The SPCA was alerted to the situation in May and is accusing the wildlife ministry of refusing to rescue the animals.
CJAD News has learned the farm is in Saint-Jude, Quebec.
The SPCA alleged the farm owner is depriving the animals of basic needs, like water.
"They're in the most horrific, unimaginable conditions," said Alanna Devine of the Montreal SPCA.
"Many of these [animals] may no longer be alive," she said. "Due to severe dehydration, they would need to be on IV drips and require hospitalization just to save their lives."
The animals are bred for the sole use of their fur, an industry that survives because of fashion.
Preliminary veterinary reports indicated many animals are covered in lesions, have broken teeth, are dehydrated, missing eyes, blind, have lacerations andhave broken limbs.
The wildlife ministry was brought in but the SPCA said they are refusing to remove the animals.
A spokesperson with the ministry said the animals are "unfortunately bred for the furring industry and all urgent issues at the farm have been dealt with."
But the SPCA wants the animals seized from the owner, who was previously convicted of animal cruelty.
The wildlife ministry said it is visiting the farm every couple days.
To view a preliminary vet report on the condition of the animals, click here.