Breeding and Reproduction

Horse breeding from planning through foal care

Equine Herpesvirus: Valtrex Treatment Appears Successful

Can antiviral drugs be used to successfully treat horses with equine herpesvirus? Recent research into the drug Valacyclovir (trade name Valtrex) seems to indicate it has a place in treating horses exposed to–and diagnosed with–equine herpesvirus

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Va. Tech Researcher Using Genetics to Preserve Rare Breeds

A professor of pathology and genetics at the Virginia-Maryland Regional School of Veterinary Medicine in Blacksburg, Va., has been working for more than 30 years to help save a rare breed of horses.


Colonial Spanish horses were the horse

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Horse Genome Map Complete

The first genome map of a horse is complete, providing scientists with a new set of tools for investigating equine disease, scientists at the Broad Institute, a part of the Massachusetts Institute of Technology, and the National Human Genome

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Herpesvirus: N.Y. Horse Euthanatized

Just days after a false alarm reporting a positive case of equine herpesvirus-1 (EHV-1) in Dutchess County, N.Y., a horse there was euthanatized after showing neurologic signs consistent with EHV-1. Test results confirmed the horse

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Induction of Lactation in the Non-Pregnant Mare

Poor milk production or the loss of a mare in the peripartum period (occurring in the last month of gestation or the first few months after delivery) can jeopardize the health and viability of the foal. To provide the foal with an alternate

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Hormone and Drug Use in the Stallion

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

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Systemic Therapy in the High-Risk Mare

Several conditions can threaten pregnancy in the late gestational mare. C.S. Bailey, DVM, who is completing a theriogenology residency at the University of Florida and Hagyard Equine Medical Institute in Lexington, Ky., said some of these

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Reproductive Evaluation of the Stallion

When a veterinarian is considering a stallion’s suitability as a breeding animal, the horse’s history, current physical condition, and libido are just as important as his semen quality.

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Equine Viral Arteritis in 2006

Last year was marked by the re-emergence of equine viral arteritis (EVA) on a widespread scale in the United States, with evidence of infection confirmed in 10 states. The occurrence was significant in that it represented the first major incursion

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Dopamine and Its Evil Twin Ergovaline

In the horse, the hormone dopamine exerts a number of effects through its actions on the pituitary gland. Both dopamine and ergovaline, a dopaminergic agonist (a drug that stimulates dopamine receptors), can significantly impact the mare’s

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New Developments in Stallion Nutrition

Name a part of your horse you’d like to enhance–anything from his coat or hooves to his stamina–and there’s likely a supplement for it. Marketed alongside the products that improve joint function and breathing ability, there are supplements

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