Haylie Pfeffer

Haylie Pfeffer, Digital Editor, holds a degree in equine studies with a concentration in communications and a minor in social media marketing. She is a Pennsylvania native and, as a horse owner herself, has a passion for helping owners provide the best care for their horses. When she is not writing or in the barn, she is spending time with her dog, Clementine.

Articles by: Haylie Pfeffer

Cuts Made at the Animal Health Trust

Researchers’ departure “a bitter pill to swallow”


In November 2005, The Horse reported on studies underway at the Animal Health Trust’s Centre for Equine Studies based in Newmarket in the United Kingdom (Helping Horses

Read More

The Respiratory System (Book Excerpt)

The respiratory system’s main goal is to transfer oxygen from the air we breathe to the red blood cells where the oxygen will be transported throughout the body and be available for all organs and tissues.

Read More

Research Sought on Use of Alcohol in Racehorses

Having gotten field reports that racehorses are receiving vodka intravenously in an attempt to calm them down before races, the Racing Medication and Testing Consortium (RMTC) has authorized laboratories to develop a test for

Read More

New Product Reduces Herpesvirus Clinical Signs

Pfizer Animal Health on Feb. 8 announced the release of Zylexis, which according to the company’s research prepares the horse’s immune system to function more efficiently against equine herpesvirus (EHV) types-1 and -4 pathogens. The

Read More

Final Kentucky Racetrack Released From Quarantine

Equine herpesvirus quarantines at two Kentucky Thoroughbred facilities were released, ending the recent outbreak of the neurologic disease. Robert Stout, DVM, Kentucky state veterinarian, lifted the quarantine at Turfway Park in Florence on Feb.

Read More

Arena Dust and Human Health

Respiratory health in horses is often a concern, and we work tirelessly to control dust in our horses’ working and living environments. Ironically, we give little regard to our own respiratory health in and around the barn. It has long been know

Read More

Michigan Veterinarian Describes Neurologic Herpes Case

A 3-year-old Standardbred mare suffering from signs of neurologic disease tested positive for equine herpesvirus type-1 (EHV-1) and was euthanatized at the Allegan County Fairgrounds in Allegan, Mich., on Jan. 18. The horse had been shipped in

Read More

Pimlico Quarantine Lifted

The Maryland Jockey Club (MJC) lifted its self-imposed quarantine on Pimlico Race Course this morning (Feb. 8), allowing horses from the Baltimore track to compete at Laurel Park in Laurel, Md., for the first time since Jan. 21. Twelve

Read More

Second Neurologic Horse Euthanatized on Maryland Farm

A competitive event horse that began showing neurologic signs of equine herpesvirus type 1 (EHV-1) last Thursday (Feb. 2) was euthanatized on Sunday (Feb. 5) after a rapid decline in health. The mare is the second horse to be euthanatized on the

Read More

Maryland Trainers Holding Their Breath

For more than a week, Maryland Jockey Club (MJC) chief operating officer Lou Raffetto said he could “see the light at the end of the tunnel” regarding the ongoing battle with equine herpesvirus.


There was some light Feb. 3, when Laurel

Read More

FSIS Establishes Fee-For-Service Program For Horsemeat

The U.S. Department of Agriculture’s Food Safety and Inspection Service (FSIS) today announced an interim final rule establishing a voluntary fee-for-service program under which establishments that slaughter horses can continue to receive

Read More

Kansas Barn Fire Kills 43 Horses

A Feb. 5 fire in a barn at Eureka Downs in Eureka, Kan., killed 43 horses and remained under investigation as of Feb. 6, officials said.


Both Thoroughbreds and Quarter Horses, most of which were 2-year-olds in training, were killed.

Read More

Pregnant Mares

The mare from which you have always wanted to raise a foal has just been pronounced pregnant by your veterinarian. Now you just have to wait about 11 months and see what she produces, right? Not so fast! There is much more involved than just

Read More

Synovial Joints and How They Work

First we’ll look at how the horse’s synovial joints are constructed, then we’ll outline where they are located, the functions they serve, and some of the problems that can develop.

Read More

More From The Horse

060_thehorse-vet_2025
Horse Eating Hay
knee flexion, lameness exam
Mückenplage auf der Pferdeweide

Stay on top of the most recent Horse Health news with

FREE weekly newsletters from TheHorse.com

Sponsored Content

Weekly Poll

sponsored by:

What is your biggest challenge when caring for horses in hot weather?
69 votes · 69 answers

Readers’ Most Popular

The Horse
Privacy Overview

This website uses cookies so that we can provide you with the best user experience possible. Cookie information is stored in your browser and performs functions such as recognising you when you return to our website and helping our team to understand which sections of the website you find most interesting and useful.