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Equine chorionic gonadotropin (acronym given as eCG but not to be confused with ECG) is a gonadotropic hormone produced in the chorion of pregnant mares. Previously referred to as pregnant mare's serum gonadotropin ( PMSG ), the hormone is commonly used in concert with progestogen to induce ovulation in livestock prior to artificial insemination .
After the mare is bred or artificially inseminated, she is checked using ultrasound 14–16 days later to see if she "took", and is pregnant. A second check is usually performed at 28 days. If the mare is not pregnant, she may be bred again during her next cycle. It is considered safe to breed a mare to a stallion of much larger size.
A broodmare. Note slight distension of belly, indicating either early pregnancy or recent foaling. A mare is an adult female horse or other equine. [1] In most cases, a mare is a female horse over the age of three, and a filly is a female horse three and younger. In Thoroughbred horse racing, a mare is defined as a female horse more
Elephants are majestic, smart, and warm animals that people continue to take advantage of. In Thailand, due to the tourism and logging industry, the elephant population has severely dropped, and ...
In the 1980s, Australian researchers developed a laparoscopic insemination procedure which, combined with the use of progestogen and a pregnant mare's serum gonadotropin , yielded much higher success rates (50-80% or more), and has become the standard for artificial insemination of sheep in the 21st century.
Conjugated estriol, an extract of the urine of pregnant women and sold under the brand names Progynon and Emmenin in the 1930s, was the predecessor of Premarin. [79] Both of these products contained conjugated estrogens similarly to Premarin, but the estrogens were human estrogens as opposed to equine estrogens and the composition differed.
Why more people get pregnant during the holidays than any other time. (Photo: Getty Images) (Getty Images and Nadeen Nakib)
Mare reproductive loss syndrome (MRLS) is a syndrome consisting of equine abortions and three related nonreproductive syndromes which occur in horses of all breeds, sexes, and ages. MRLS was first observed in the U.S. state of Kentucky in a three-week period around May 5, 2001, when about 20–30% of Kentucky's pregnant mares suffered abortions.