

The mare should be fed her usual ration during the first two-thirds of the pregnancy. Pregnancy lasts just under a year and is on average 340 days with a leeway of 20 days in either direction considered normal. Treat the pregnant mare pretty regularly for the first two thirds of the pregnancy. It should be noted that no test is foolproof and it is possible to get false positive results, however a negative test is definite confirmation that the mare is not pregnant.

This can be done from around 12 - 17 days after mating, to look for changes associated with pregnancy. A special probe is inserted into the rectum and the scan directed toward the uterus. To detect pregnancy a veterinarian can perform a transrectal ultrasound exam.The development of mammary glands is used in other species to indicate pregnancy, but again this may not happen in the horse until a month before foaling, and even then "bagging up" can be the result of a false pregnancy. A swollen belly may not be evident until the final third of pregnancy, and even then, weight gain from additional food can be mistaken for a foal.

It can be difficult to visually detect pregnancy, especially in stockier wide-framed mares. X Research sourceįigure out if the mare is pregnant. In addition, a female horse coming into heat may show signs, such as increased interest in other horses, a change in temperament that is often characterized as moodiness, and increased frequency of urination.When she is in heat her hormones make her more interested in seeking male attention and so she may become flirtatious towards the male. Some stud farms employ the use of "teaser" stallions who the mare can see but not reach. It can be tricky to know when a mare is coming into season.For the maximum chance of conception ideally the mare would be covered by a stallion on day 2 or 3 after the beginning of heat, and continue on alternate days until the heat finishes.She ovulates and is therefore most likely to get pregnant one to two days before the end of the heat, but this does vary with individuals. Each estrus cycle takes around 21 days, with the mare being in estrus or 'heat' for an average of 6 days in every 21. Make sure your mare is in the prime time of her heat for reproduction. Mate the mare and stallion or impregnate the mare with artificial insemination.
