Thirty-nine cats and four dogs were rescued from a Ponoka-area home on Thursday night.
Alberta SPCA seized the animals after complaints from neighbours and other residents who were concerned for the health of the cats.
The owner has since relinquished ownership of the dogs and cats.
The animals are being cared for at Klassic Kennels and Alberta Animal Services. They will be assessed by veterinarians.
No charges are pending at this time.