Bos taurus, or domestic cattle, are large, even-toed, horned ruminants. They are commonly raised for meat (beef cattle) or dairy (dairy cattle). Key facts include that cattle have a body temperature of 100-102.5°F, heart rate of 40-80 bpm, and respiration rate of 10-30 breaths per minute. Their average lifespan is 20 years. Common health concerns for cattle include bloat, bovine virus diarrhea, infectious bovine rhinotracheitis, mastitis, milk fever, hardware disease, brucellosis, pinkeye, and Johne's disease.