1,300 puppies are born at the centre every year.
They currently have 272 breeders.
There are only eight breeders left on the waiting list.
On average six to eight breeding bitches are placed every month, but for the last three months of 2012 homes had to be found for around 15 dogs.
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Investigation launched after the bodies of a husband and wife were discovered at separate addresses in a suspected murder suicide.
Illegal pistols, rifles, a revolver and ammunition were discovered at the house - Jonathan Knight has now been sent to prison for 5 years.
The competition watchdog says the site's contractual arrangements with insurers that could result in higher home insurance costs.