- fever coinciding with the beginning of lactation, formerly believed to be due to lactation but really due to infection.
- an acute disorder of calcium metabolism affecting dairy cows shortly after calving, causing somnolence and paralysis of the hind legs.
- a fever that sometimes occurs shortly after childbirth, once thought to result from engorgement of the breasts with milk but now thought to be caused by infection
- a disease of cows, goats, etc, occurring shortly after parturition, characterized by low blood calcium levels, paralysis, and loss of consciousness