Beverley Price from Bridgend Dogs Trust says 600 dogs arrived at the centre last year - a record number.
She urges anyone considering getting a dog to think long and hard about their decision - and is asking would-be dog owners to consider rehoming a dog from the centre.
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Local authorities said the move is necessary to "avert the growing number of deaths and increasing harm linked to psychoactive substances".
Sunny and bright spells for most of us this afternoon, feeling pleasantly warm.
North Wales Fire and Rescue Service say incidents of deliberate fires are more common during the school holidays.