Horses and dogs estrus once every few months, 2 ~ 3 times a year, with an interval of 4 ~ 6 months.

The first estrus occurred when the puppy was 6 months old. /kloc-Adult mares over 0/2 months old are in estrus 2~3 times a year, even 4 times when their sexual desire is strong, but the estrus times of stallions are extremely irregular. In addition, there is no such thing as estrus in male dogs. After the age of 5, the estrus interval of horse dogs will gradually increase until they stop estrus.

1, first estrus

It is possible for puppies to get estrus for the first time when they are 6 months old, but a few puppies get estrus for the first time when they are 8~ 10 months old. At this time, both male and female dogs will have a strong interest in the opposite sex, but premature mating will seriously damage their health, so it is not suitable for breeding. But when it comes to horses and dogs in heat once every few months, the time is not fixed.

2. Intermittent estrus

/kloc-Adult mares over 0/2 months old usually estrus 2~3 times a year, and a few mares with strong sexual desire may estrus more than 4 times. The estrus of male and female horses is extremely irregular. After contacting the opposite sex, they will enter the estrus state and can mate at any time.

3, not estrus

There is no saying that male dogs are in estrus, because the estrus time of male dogs is extremely irregular, and adult male dogs with strong sexual desire may even be in a state of frequent estrus In addition, after the age of 5, the estrus of equine dogs that gradually enter the old age from middle age will gradually shorten and the interval will increase until it disappears completely.