Hormones for Breeding

Article

How Can I Tell if a Mare is Pregnant?

August 18, 2014

Equine reproduction specialist Ryan Ferris, DVM, shares the signs that a mare is in foal.... Read More

Article

Increased Incidence of Twins

July 09, 2014

Could an increase in twin pregnancies be related to the number of mares receiving injections for ovulation?... Read More

Article

Researchers Identify Pregnancy-Supporting Hormone in Mares

February 27, 2014

Dihydroprogesterone (or DHP) is effective in sustaining pregnancy in mares during the last few months.... Read More

Article

Suppressing Estrus in Mares

November 29, 2012

Most options can lessen the effects of estrus while still allowing mares a second career as a broodmare.... Read More

Article

Mares and Hormones

November 01, 2012

Estrous cycles and certain disease processes can affect mares' reproductive hormones.... Read More

Article

Hormone Therapy Might Prevent Equine Abortion

March 17, 2010

Veterinarians might be able to prevent abortions in some pregnant mares that show premature mammary development, Dietrich H. Volkmann, BVSc, MMedVet (Gyn), Dipl. ACT, told equine veterinarians at the 2010 Western Veterinary Conference, held Feb... Read More

Article

Hormones and Mare Conception Rates

February 22, 2010

Treatment with equine follicle-stimulating hormone (eFSH) does not increase healthy mares' conception rates, researchers recently reported.

The hormone eFSH is used to stimulate donor mares' ovaries to increase the number of ... Read More

Article

Horse Transport, Housing Stress Reflected in Hormone Levels

June 29, 2009

Horse transport and housing has an effect on the animals' stress levels, according to Shannon Garey, a PhD candidate under the direction of Theodore Friend, PhD, PAS, Dipl. ACAABS, of Texas A&M. Garey presented results of an ongoing study on... Read More

Article

Hormone Therapy in the Mare, AAEP 2008

April 10, 2009

The discussion on hormone therapy in the mare followed a systematic progression through three broad areas: 1) hastening the onset of (ovarian) follicular activity and ovulation in winter anestrus (noncycling) mares; 2) synchronizing ovulation in cycl... Read More

Article

Reproductive Hormones Directly Influence Embryo Development

January 26, 2008

A group of Dutch researchers reported evidence that the equine conceptus (i.e., the embryo and associated membranes) might be directly responsive to the reproductive hormones progesterone and estrogen,... Read More

Article

Progesterone Test Makes Reproductive Management Less of a Nightmare

November 13, 2007

New research has revealed that a commercially available progesterone test is reliable and practical, and it can help veterinarians manage breeding mares more efficiently.

According to researchers from the College of Veterinary Medicine at... Read More

Article

Inducing Ovulation With Recombinant Equine Luteinizing Hormone

July 29, 2007

Manipulating the estrous cycle in mares is a big part of many breeding operations, and medications play various roles in the process. There are several options for inducing ovulation, including human chorionic gonadotropin (hCG),... Read More

Article

Hormones to Treat Cryptorchids

July 08, 2007

While giving hormones to colts might seem like a method of self-destruction, there really is a reason for it in some cases--such as for cryptorchids. These colts have at least one testicle that hasn't descended into the scrotum; normally... Read More

Article

Hormone and Drug Use in the Stallion

February 01, 2007

Many hormone and drug treatments could have a negative impact on the endocrine system, so it's best to avoid using them altogether in the breeding stallion. However, Sue M. McDonnell, PhD, Certified AAB, of the University of Pennsylvania's School... Read More

Article

AAEP Convention 2004: Hormone Therapy in the Mare

February 14, 2005

This discussion at the 50th annual American Association of Equine Practitioners (AAEP) Convention in Denver, Colo., Dec. 4-8, 2004, was presided over by Patrick McCue, DVM, PhD, Dipl. ACT, associate professor of equine ambulatory medicine at... Read More

Article

Environment and Hormones

January 01, 2003

Some natural and man-made compounds in the environment can disrupt the delicate reproduction hormone balance in many species, possibly including horses. Her suggestion was that although this cause of reproductive dysfunction had not been studied in h... Read More

Article

Environmental Effects on Hormone Activity

October 31, 2002

Some compounds present in the environment, both from natural and man-made sources, can disrupt the delicate hormone balance necessary for reproduction in several species possibly including horses, according to Cynthia Corbitt Gulledge, PhD, of... Read More

Article

Synthetic Estrogen Drug Receives FDA Approval In 1.25mg Strength

March 01, 2000

Duramed Pharmaceuticals announced March 13 that the United States Food and Drug Administration (FDA) has approved the company's supplemental new drug application for Cenestin tablets in the 1.25 mg dosage strength. Cenestin,... Read More