The Pottenger Cat Experiments are One of the best known studies of Raw vs Cooked Foods with animals was a 10 yr research project using 900 cats. Dr Pottenger fed all 900 cats the same food, the only difference being that one group received it raw, while the other received it cooked.
The cats that were feed the uncooked raw, living foods produced Healthy Kittens year after year with No ill Health or Premature Deaths.
But the cats fed the same food, only cooked, developed Heart Disease, Cancer, Kidney & Thyroid Disease, Pneumonia, Paralysis, Loss of Teeth, Arthritis, Birthing Difficulties, Diminished Sexual Interest, Diarrhea, Irritability, Liver Problems, & Osteoporosis, (the same diseases common in our American cooked-food culture).
The 1st Generation of kittens from cats fed cooked food were Sick & Abnormal, the 2nd Generation were often born Diseased or Dead, & by the 3rd generation, the Mothers were Sterile!
published in the 1946 American Journal of Orthodontics & Oral Surgery