AI (Artificial Intelligence) is a rapidly growing field and it’s essential to understand the basics of AI mare follicle size. In this article, I will explain what follicle size is necessary for successful Artificial Insemination (AI) in mares.
What follicle size to AI mare?
When the follicle reaches a key size of 35mm, either Chorulon or Ovuplant can be used to induce ovulation. The mare should then ovulate within 24 to 48 hours. In mares, follicles typically ovulate at diameters of between 35 and 55 mm. It is important to establish baselines for the ongoing monitoring of the mare’s follicle size. On “average” a follicle may grow at 5mm per day and should ovulate at approximately 5 cm (it is not unusual for mares to ovulate either large or smaller sized follicles). Most mares are less likely to ovulate with a follicle that is smaller than 35 mm.
Double ovulations with follicles on the same ovary are likely to occur with follicles larger than 45 mm. Most mares ovulate follicles 35-45mm in size. They change shape and become soft as they near ovulation. The mare is then inseminated.
A plastic AI pipette is filled with cooled semen and advanced into the mare’s oviduct. It is often that mares bred by AI are not in heat and only have a large size follicle with no other signs of estrus. The presence of a tight cervix, the acute angle of the cervix and the presence of a large follicle are all indications that the mare is ready to be inseminated.
AI Mare Follicle Size Monitoring
It is important to closely monitor the mare’s follicle size during the ovulation process. Ultrasonography is the main method for monitoring follicle size and is used to accurately measure the follicle size in millimeters.
The use of ultrasound imaging allows the vet to determine the follicle size and accurately predict when the mare is ready to be inseminated. This helps to ensure that the mare will ovulate at the optimal time and facilitates the successful artificial insemination of the mare.
To sum up, the follicle size to AI mare is typically between 35-45mm. It is important to closely monitor the mare’s follicle size during the ovulation process to ensure that the mare will ovulate at the optimal time and facilitate successful artificial insemination. For more information and answers to AI questions, visit Artificial-Technology.com.
What is the rate of follicle development on a daily basis in mares?
Follicular development in mares has been estimated to reach a growth rate of 3-5 millimeters every day. Additionally, the swelling of the uterus, which is a tell-tale sign of estrus, peaks about 36 hours before the ovulation process begins in a healthy mare.
What is the time frame for breeding a mare after ovulation?
It appears that the horse egg is able to be fertilized for up to 18 hours after it is released from the ovary.
What is an ideal dimension for a follicle that would promote successful fertilization?
When your hair follicles measure 18-20mm in size, they are then considered ready for egg retrieval.
What is the rate of AI (artificial insemination) success in horses?
The effectiveness of Artificial Intelligence is typically between 60 and 90%. This suggests that it usually takes one or two cycles to impregnate a mare with fresh or shipped semen of superior quality. What is the process of shipping fresh semen?