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
A bitch generally has her first estrus season, or heat, at between 6 and 12 months of age, most commonly between 8 and 10 months. Mating will produce a litter at this age, but she is immature, so it is important to guard against that potential. A female dog will normally return to season about every six months. Some have estrus seasons as often as every four months or less. If you are not a serious breeder, the healthiest thing you can do for your female puppy is to spay her before she reaches sexual maturity, according to the PetMD website.
Non-spayed female dogs will go into heat or estrus usually twice a year. The age at which they start their cycles and the duration of the cycle varies greatly between the breeds of dogs and individual dogs. Learn more facts about canine estrus in this FAQ. Answer: There are four stages to the canine estrus cycle:ome general rules of thumb for canine estrus: 1  The first estrus cycle usually occurs by age 6-12 months; for some small breeds, as early as 5 months, and for some large and giant breeds, the first cycle may not occur until 14 months of age or older. 2  On average, dogs have two cycles a year.