Are you strictly looking to compete in Canada? If you are just looking to compete and not breed then the dog's microchip is insignificant. If you are looking to dual register for purposes of breeding then yes the dog would need a second microchip.
No, if you want to register a dog with the CKC, that dog has to be permanently ID'd with either a CKC registered tattoo combination, or a microchip that is recognised/approved by the CKC - a microchip that is universally readable/scanable.
Using your AKC reg'd male on a CKC reg'd bitch has nothing to do with it; if the progeny are to be registered with the CKC they must be permanently ID'd.
