In three undercover operations the Dogs Trust seized 100 young dogs in just one week from Folkestone and Dover ports.
The pups are found in “shocking conditions”, with severe health issues.
The Dogs Trust said it had come across seven Cane Corso pups with infected wounds after their ears and tails were cropped and docked, apparently using scissors and vodka.
According to the trust, high demand for “trendy” breeds such as French bulldogs, English bulldogs, Chow Chows and Daschunds helped to fuel the “sickening trade”, which can net bootleg breeders tens of thousands of pounds.
Dogs Trust veterinary director Paula Boyden said: “Buying an illegally imported puppy could potentially cost well-meaning but unsuspecting families thousands of pounds in quarantine and vet bills and emotional heartache for the family if the puppy falls ill or worse, dies.
“We continue to be astounded at the lengths these deceptive breeders and dealers will go to.”
In 2016 officials found 688 “illegally landed” dogs, more than treble the recorded number in 2014.
Avoid purchasing illegal pups:
- Ask to see the mother and pup together
- Visit the new pup, at its home, more than once and get paperwork before taking it home
- Take new puppies for a veterinary health check immediately
- Do not buy from anyone who can supply various breeds on demand
- Do not to buy a puppy that looks underweight, or feel pressured into buying