Cat owners have been issued a fresh warning to microchip their pets, or risk facing a hefty fine of £500. New legislation will come into force next month, and will require all cats to be microchipped and officially registered once they reach the age of 20 weeks. Owners found to have not microchipped their cat will have 21 days to have one implanted, or may face paying the fine. Local councils will also be granted powers to seize unchipped cats, arrange for them to be microchipped and then return them to their owners, who will be responsible for covering the cost. Speaking to GB News, Veterinar…