We completely out of the blue have ended up with a 6 year old chihuahua who is twice the weight he should be. He has been beaten badly in the past and has no front teeth apart from this four canines. Due to his weight his breathing is very noisy and he struggles to walk.
We only got him this afternoon. How do we go about him losing weight? He has never eaten dog food before, always had scraps/human food. We are putting a stop to this immediately.
Advice please?