NEW YORK, NY - AUGUST 15: White House Chief of Staff Gen. John Kelly looks on as US President Donald Trump speaks following a meeting on infrastructure at... Drew Angerer The disconnect between the White Houseâs John Kelly and his boss
While many females will hold to a fairly steady schedule of coming into season about every six months, it can vary. Some girls will only come into heat once year, while others may even come into season every four months. However, these extra seasons are not always fertile.
While for the large breeds, it can start when the dog is about 2 years old. Female dogs normally have only 2 reproductive cycles in a year. During the cycle, they will experience bloody vaginal discharges that last for 4-9 days.After this duration, the female dog will begin to stand for breeding and accept the male.hile for the large breeds, it can start when the dog is about 2 years old. Female dogs normally have only 2 reproductive cycles in a year. During the cycle, they will experience bloody vaginal discharges that last for 4-9 days.