What is the function of equine chorionic gonadotropin?
Equine chorionic gonadotropin or eCG is an important hormone produced by the placenta of pregnant mares and extracted from the blood of these same mares. This hormone is commonly used to enhance reproduction of pigs, dairy cows, sheep, beef cows, and goats.
What is the purpose of pregnant mare serum gonadotropin?
PMSG hormone is secreted from endometrial cups within the pregnant mare uterus aging from 40 to 130 days into their maturation, and once extracted, it can been used to promote artificially estrus in female animals. These assemblies produce PMSG hormone to induce mare’s ovarian and repsouctive structures.
What hormone induces ovulation in horses?
Injection of hCG (2000-2500 i.u., i.v.) to mares when a follicle reaches 35 mm induces ovulation between 24 and 48 h.
What hormone is considered the pregnancy hormone in horses?
Pregnant mare serum gonadotropin (PMSG), also known as equine chorionic gonadotropin (eCG), is a hormone that is secreted by the endometrial cups formed in the mare uterus ~40 days after conception.
Where are Hippomanes found?
Aristotle stated, circa 350 B.C. ‘After parturition the mare at once swallows the afterbirth and bites off the growth, called the ‘hippomanes’, that is found on the forehead of the foal. This growth is somewhat smaller than a dried fig, and in shape broad and round and in color black.
What is PMSG used for during breeding?
Sheep sponges and PMSG Using progestogen impregnated sponges as part of the breeding programme allows a group of ewes to be mated as a batch on one day, and the use of a hormone injection PMSG will increase ovulation rates and in turn improve litter size.
How do you store PMSG?
Storage/Expiration Lyophilized PMSG although stable at room temperature for 3 weeks, should be stored between 2-8ºC. Once reconstituted it is recommended to aliquot and store at -70ºC for long term use.
What does Sucromate do for horses?
Sucromate Equine is indicated for inducing ovulation within 48 hours of treatment in cyclic estrous mares with an ovarian follicle between 30 and 40 mm in diameter. Sucromate Equine is a sterile, synthetic gonadotropin-releasing hormone (GnRH) analog suspension.
What Drug Brings a mare into heat?
The most common method used to bring transitional mares into estrus is a progestin, altrenogest, marketed as Regu-Mate or Altresyn. Squires said many managers and veterinarian put mares under artificial light for 60 days before administering altrenogest for 10 to 14 days. At that point, the mare should come into heat.
What does Regumate do for geldings?
As mentioned above, Regumate is a progestin, which, in males inhibits the release of Luteinizing Hormone (LH). LH stimulates leydig cells in testicles to produce testosterone. So when Regumate is given, LH is suppressed and testosterone is not produced, or produced to a lesser degree.
Can you use human pregnancy test on horses?
WeeFoal™ urine test can be used to predict and monitor pregnancy status in all breeds of horses, donkeys and zebra, where palpation per rectum or internal ultrasound scanning is not an option, as in the miniature horse or smaller mares.
What is a Hippomane in a horse?
Summary. The hippomane is a palm-sized or larger, olive to light tan, rubbery-consistency slab of tissue that is commonly found – and is associated with the placenta at foaling. It is composed of a variety of fetal waste products that accumulated over the pregnancy.
What is a teaser ram?
A ‘teaser’ is a ram that has been vasectomised (rendering him unable to impregnate ewes), but maintains his testosterone levels, driving his libido and physical mating ability. As a result the ‘ram effect’ naturally synchronises the ewes ready for your entire, fertile rams to be introduced.
How do you increase lambing percentage?
A high ovulation rate (OR) is the first step in achieving a high lambing percentage. High ewe live weight and live weight gain during mating causes high OR – for each extra kg of ewe weight there will be 1-2% higher lambing percentage. A 10% increase in OR causes 6.9% more lambs born and 5.7% more lambs tailed.
Why PMSG is used in wind turbine?
Particularly, PMSG is direct drive, has slow rotation speed, does not have rotor current, and can be used without gearbox. The high efficiency and low maintenance will reduce the cost that is the most concern to invest.
What does PMSG stand for?
Permanent magnet synchronous generator, a kind of alternator.