# data[].attributes.body
-Stallions can typically breed about 50-60 mares in a breeding season
- Many factors vary
- Examples include age, testicle size, health of horse,  and maturity
- With artificial insemination, a collection of semen can serve up to 10 mares a day.

# data[].attributes.body
-Horses seasonal polyestrous breeders
-Mares go into heat about every 18 to 21 days
-Estrus usually lasts five to seven days.

# data[].attributes.body
-Estrus detection is usually determined by a veterinarian by ultrasound.
- Some breeding farms use a teasing stallion to help determine if the mare is in heat.

# data[].attributes.headline
Patterns of courtship and breeding behavior among feral horses

# data[].attributes.subject
Patterns of courtship and breeding behavior among feral horses

# data[].attributes.body
- A stallion will often push its lips up and smell the mare when the mare shows that it is in heat.

# data[].attributes.body
Below is a video that goes more in depth about detecting estrus in mares.

# data[].attributes.attachment_link.title
Estrus Detection Methods for Horses, provided by eXtension

# data[].attributes.attachment_link.description
This video, produced by the University of Nebraska, discusses methods used in the horse industry to detect mares in estrus. This video was designed to help educate horse breeders on horse breeding management. This video was sponsored in part by My Horse University (www.myhorseuniversity.com) based out of Michigan State University Extension.

# data[].attributes.body
- When a female is ready to breed, it often will raise its tail exposing its vulva.
-It will also urinate to attract the stallion.

# data[].attributes.body
-A stallion will show off in front of a mare before the mare is in heat.
-It will try to act tough. They try to bite the mares rear or shoulders.
-The mare will act displeased by this

# data[].attributes.body
- Before mating ,a stallion is teased with a mare to help speed up collection.
-The mare being bred is not always the one present.
-It can be any mare, usually in heat, to help the stallion with the collection.
- They typically use a "phantom mare" to collect the semen (Principles & applications of domestic animal behavior)