The RSPCA Halifax, Huddersfield and District branch have helped home 36 puppies after they were rescued from a farm.
Volunteers and staff found new homes across Calderdale and nearby towns for the Labrador, Collie and Malumute dogs that were saved from a farm in Bury.
The RSPCA, along with a vet, police and council environmental services, visited the property and found 137 dogs.
A father and son who bred the pedigree dogs and sold them admitted 11 offences under the Animal Welfare Act at Bury Magistrates Court.
Jeffrey and Richard Speakman from Bentley Hall Road pleaded guilty to nine allegations of failing to meet the needs of the dogs in their care and two of causing unnecessary suffering.
They are due to reappear at court on October 7 for sentencing.
All the dogs were signed over to the RSPCA and networked to RSPCA animal centres and branches all over the country.
They have either already been rehomed or are up for rehoming.