Breeding and Reproduction

Horse breeding from planning through foal care

New Tool for Counting Sperm

Equine practitioners now have a new, accurate tool for measuring stallion fertility–the NucleoCounter SP-100 fluorescence-based instrument. While it is more expensive than some instruments currently used for counting sperm, it is accurate and easy

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AQHA Reviews Cloning; Delays Vote Until 2010

On Monday, March 9, the Board of Directors of the American Quarter Horse Association (AQHA) voted that action on a member proposal to approve the registration of foals produced by cloning be postponed until the 2010 AQHA Annual Convention. In th

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New York to Offer CEM Training Sessions for Vets

Licensed veterinarians in New York have been invited to attend training sessions regarding contagious equine metritis (CEM), sponsored by the New York State Veterinary Medical Society, Agriculture Commissioner Patrick Hooker announced March 4.

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Breeding The Problem Mare With AI

“In my opinion, a mare that fails to become pregnant by AI with good semen quality and does so by natural cover without human intervention is an example of poor or inadequate breeding management by the personnel performing the AI,” said Samper.

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Marion DuPont Scott EMC Cares for Foals At Risk

Welcoming a healthy foal can be a challenge when the mare or the foal has health problems. At Virginia Tech’s Marion DuPont Scott Equine Medical Center, expert faculty and staff have experience in helping achieve a good birthing outcome as well

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Frozen Semen Use in Barren Mares

To rectify the lack of information problem, Barbacini and colleagues launched a study to determine the fertility of barren mares inseminated with either fresh or frozen-thawed semen. Researchers investigated the effects of mare age and uterine fluid

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Immunostimulants for Foals

A product that could stimulate the immune systems of newborn foals to better fight infection of Rhodococcus equi would be very beneficial, said Steeve Giguère, DVM, PhD, of the University of Florida, at the 2008 American Association of Equine

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DNA Testing for Twins (AAEP 2008)

Tissues from both the recipient and donor mare, as well as from the two stillborn foals, were submitted for microsatellite analysis. The analysis verified that the foals had identical genotypes and resulted from the transferred embryo.

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Lavender Foal Study Needs Participants

Researchers at Cornell University announced plans to conduct a new study focused on Lavender Foal Syndrome/Coat Color Dilution Lethal (LFS/CCDL). The project, led by Samantha Brooks, PhD, and in collaboration with Doug Antczak, VMD, PhD, and Don

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Where Not to Pinch Pennies

In tough economic times, many horse owners look for ways to cut costs. Too often this is done by cutting back on veterinary care. However, it is important to keep in mind that what may save us a couple of dollars now might end up costing us much

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Vaccination (AAEP 2008)

Pusterla discussed the effectiveness of three vaccination strategies against L. intracellularis, which causes proliferative enteropathy (a spreading intestinal disease). “Although the clinical entity (L. intracellularis infection), diagnostic evalua

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California Mare Positive for CEM

A 12-year-old mare in California has tested positive for contagious equine metritis (CEM), a highly contagious but treatable reproductive disease of horses.

The positive mare was bred via artificial insemination using shipped semen collecte

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