Etiology (/iËtiËÉlÉdÊi/; alternatively aetiology or Ã¦tiology) is the study of causation, or origination. The word is derived from the Greek Î±á¼°ÏÎ¹Î¿Î»Î¿Î³Î¯Î±, aitiologia, giving a reason for (Î±á¼°ÏÎ¯Î±, aitia, cause; and -Î»Î¿Î³Î¯Î±, -logia).
A female dog will generally stay in heat for about three weeks or around 21 days.However, this heat cycle will vary from one dog to the next. It depends on the breed, the age and the dog herself. A female dog will go into heat twice a year. female dog will generally stay in heat for about three weeks or around 21 days.
Dogs can become pregnant until the end of the heat cycle, which can last up to 24 days. Do dogs go through menopause? No; female dogs continue to go into heat throughout their lives, although the length of time between heats usually increases with older age. What is the best way to control the heat cycle? The best way to control the heat cycle is to have your female dog spayed.