SCOTLAND'S DOGS are at risk of death by chocolate over Christmas, according to Tesco Personal Finance.

Chocolate ornaments dangling on a Christmas tree can be harmful to the family pet. Large quantities can bring on epileptic seizures and, in the worst cases, death.

The chemicals theobromine and caffeine that are found in chocolate can have a dangerous affect on an animal's digestive system, especially if the animal is a dog. There are higher levels of Theobromine in dark chocolate and even a small amount can be harmful, especially to smaller breeds such as Yorkshire terriers.

The national Veterinary Poisons Information Service fielded 790 telephone enquiries concerning chocolate (theobromine) poisoning in dogs last year, making it the most common enquiry. It has already received more than 844 enquiries in 2007, and expects an increase in the call load over the next few weeks.

The symptoms of chocolate poisoning include hyperactivity, agitation, breathlessness, vomiting, diarrhoea and increased urination. So owners should keep an eye on their pet.

Katy Horton, a vet, says: "Pet owners often forget the hazardous aspects of the festive season. Dangers include chocolate decorations and edible presents wrapped under the tree. In the past, we've treated pets for chocolate poisoning; there are always more cases of this over Christmas and Easter.

"Also, avoid overfeeding your pet at Christmas, especially Christmas day leftovers, because it is detrimental to their digestive system. Sharp fish and poultry bones can block your dog's throat."

If you know your dog has eaten chocolates, don't wait for the symptoms to develop. Take them to the vet immediately where they can be treated.

Allan Burns, head of Tesco Pet Insurance, says: "Every year around Christmas time, Tesco pet insurance customers claim for treatments for their dogs, overdosed on chocolate. Having your pet insured, helps you to keep the vet costs low."