Horse Health

Health news, veterinary advice, and educational tools to keep your horse healthy provided by The Horse

One More Piece in MRLS Puzzle

Researchers at the University of Kentucky Livestock Disease Diagnostic Center have uncovered one more piece in the puzzle relating to Mare Reproductive Loss Syndrome.

Feed for Speed

Few dispute that nutrition is important for athletic performance in racehorses. However, I'd wager that there is much less agreement among horse owners, nutritionists, and veterinarians when asked to expound upon the "nitty gritty" of what works (and what doesn't) when feeding a horse in race training. Some focus on the virtues of the latest fad supple...

Magic Weisner Could Return to Training in Three Weeks

Magic Weisner, who burst onto the national stage after finishing just three-quarters of a length behind War Emblem in the Preakness Stakes (gr. I) is back at the track and could return to training within the next three weeks after contracting the West Nile virus.

WNV Vaccine Challenge Study to be Presented Sept. 15

Fort Dodge Animal Health has just received approval from the United States Department of Agriculture to release the follow abstract regarding the West Nile virus vaccine. This paper will be presented at the OIE meeting "Vaccines for OIE list A and Emerging Diseases" in Ames, Iowa, on Sept. 15.

Magic Weisner Remains at New Bolton; Return to Track Delayed

Magic Weisner, the Preakness runner-up recovering from West Nile virus, was to have been released Thursday, Sept. 12, from the New Bolton Center in Pennsylvania. But veterinarians at New Bolton decided to keep the 3-year-old gelding a couple of more days, according to Dr. Bob Vallance, the horse's Maryland veterinarian.

Magic Weisner Continues to Improve

Magic Weisner, the Preakness and Haskell Invititational runner-up, continues to show improvement from treatments he is receiving at the University of Pennsylvania's New Bolton Center. The 3-year-old is being treated with anti-inflammatory medications for the signs of encephalitis.

Racing Toward Injury

There seems to be little doubt that musculoskeletal injury--including injury to bones, joints, tendons, and ligaments--is a major problem for Thoroughbred racehorses. This impression has been borne out by studies of "wastage" in the racing industry, where wastage describes the losses that occur during the training and racing of a horse. In some studies...

West Nile Virus Cases Down in Ocala Area

Many Marion County, Fla., horse farm owners took the advice of their veterinarians seriously and vaccinated their horses against the vector-borne West Nile virus last autumn. It has resulted in a decrease in the number of cases in 2002.

Number of West Nile Virus Cases in Kentucky at 25

The Kentucky Department of Agriculture announced late on Wednesday, Aug. 21, that six more horses had been confirmed positive for West Nile Virus (WNV) in the state. None had been vaccinated. Five of the horses are alive and one was euthanized on Aug. 19. This brings the total number of confirmed horses in the state to 25.

Radiographs and Selecting Racehorses

Veterinarians should select racehorses at auction, not "radiographically clean horses," Thoroughbred farm Three Chimneys' resident veterinarian Jim Morehead, DVM, told Australia's leading equine veterinarians at a yearling radiographic seminar Aug. 18 at Sydney University.

Preliminary Results Find Caterpillars Cause Late-Term Abortions

The University of Kentucky College of Agriculture has released preliminary results from a collaborative project involving the UK Livestock Disease Diagnostic Center, the UK Department of Veterinary Science, and the Hagyard Davidson McGee Equine Hospital. This project investigated the potential of Eastern tent caterpillars (ETC) to cause fetal loss when administered to mares in the late stages of pregnancy.

TRPB Part of Horse ID Seminar

One of the identification agencies that will be presenting information at the National Equine Identification Symposium in Chicago, Ill., July 28-Aug. 1, is the Thoroughbred Racing Protective Bureau (TRPB). The TRPB is a national investigative agency formed in 1946. One of its functions is the lip-tattooing of Thoroughbreds for the purpose of racetrack ide...

Fatigue in Racehorses

While visibly obvious, fatigue is hard to quantify. Electromyography (EMG) measures conduction along nerves in a particular muscle group--as muscle fibers fatigue, EMG signals shift from high to low. Taking EMG readings during galloping is unreliable, however, because signals are susceptible to inaccuracies from lead changes. Kinematics is another eval...

Yearling Colt in Kentucky Dies Of West Nile Virus

A Thoroughbred yearling from the Lexington area has died of West Nile Virus. It is the first time this year West Nile has been identified in a horse in Kentucky, according to the state Department of Agriculture's office of the state veterinarian.

Laryngeal Paralysis

Partial paralysis of the larynx prevents maximal opening of the equine trachea. Affected horses can move air, but breathing noises occur, especially during exercise. The most common form of laryngeal paralysis is recurrent laryngeal neuropathy (RLN), which involves degeneration of the recurrent laryngeal nerve. The cause of RLN is unknown, but it seems...

On-Going MRLS Studies Focus on Eastern Tent Caterpillar

A research project begins well before the experiment starts. That was the case of the recently completed collaborative effort at the University of Kentucky that associated the Eastern tent caterpillar and its frass (excrement) and Mare Reproductive Loss Syndrome (MRLS). Work on that project began last fall, even before funding was finalized.

Isolated Cases Consistent with MRLS Identified

A few isolated cases consistent with a diagnosis of Mare Reproductive Loss Syndrome have been identified in the last seven days, said the Kentucky Association of Equine Practitioners at a meeting May 1. The numbers are significantly less than reported for the corresponding period in 2001.

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