We lost a healthy four month old Bull Mastiff/Cane Corso puppy two days ago. He collapsed and died immediately. He had all his shots, had a good appetite, weighed 65 pounds. The vet though it might be his heart or an anuerysm (sp?). Any thoughts would be greatly appreciated.
Optional Information:
Age: <1; Male; Breed: bull mastiff/cane corso
Already Tried:
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