The Dogs Trust in Bridgend says over 600 dogs arrived at the centre last year - a record high.
Staff believe the struggling economy has played a part, but added many people simply don't realise the time and money needed to care properly for a pet.
They have urged would-be owners to think long and hard before committing to a dog.
More top news
Dr James Lavers is part of the first coordinated group of NHS volunteers to be deployed by the UK Government.
Helen Plint has the latest weather forecast for Wales.
Dan Biggar has highlighted standards Wales must reach in their quest to end 61 years of hurt against world champions New Zealand.