Ruminants being cud chewing animals digest their food in a fairly complex manner. One important role of the digestion is fermentation of the food in the largest stomach, the rumen. While this fermentation takes place, gas bubbles occur and typically the goat will belch quite often releasing this gas.. which is perfectly normal (and at times can smell really good but this is my opinion *S*)..
Cancerous basal cell tumors are the most common skin cancer in cats. Middle-aged cats are most susceptible to these tumors along with Persians and other long-haired breeds. Many breeds of dogs are predisposed to basal cell tumors, including Wirehaired Pointing Griffons and Kerry Blue and Wheaten Terriers.
Skin cancer is the most common type of canine cancer and the second most common feline cancer. Not every lump or growth on a pet is a malignant tumor, but because certain types of skin cancer can be very aggressive and fatal, you should check your pet regularly for new bumps or changes in their skin.