Christa Lesté-Lasserre, MA

Passionate about horses and science from the time she was riding her first Shetland Pony in Texas, Christa Lesté-Lasserre writes about scientific research that contributes to a better understanding of all equids. After undergrad studies in science, journalism, and literature, she received a master’s degree in creative writing. Now based in France, she aims to present the most fascinating aspect of equine science: the story it creates. Follow Lesté-Lasserre on Twitter @christalestelas.

Articles by: Christa Lesté-Lasserre, MA

Equine Grass Sickness Reviewed

A fatal gastrointestinal disease once limited to Scotland is being seen more frequently in certain parts of the world due to geographical progression, said British researchers.

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Norwegian Rider Disqualified from Beijing Olympics

Norwegian equestrian Tony Andre Hansen and his 2008 Olympic mount, Camiro, have been definitively disqualified from the Beijing Olympics for a medication offense. The disqualification followed an appeals commission decision handed down Dec. 4.

Hansen’s appeal of the 2008 ruling of the Fédération Equestre International (FEI) was dismissed last Friday by the Court

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Horses Demonstrate Ability to Count in New Study

It’s no circus trick: researchers have shown that horses can count, despite 100 years of belief to the contrary.

By dropping apples one by one into two buckets, researchers determined that horses almost always chose the bucket with more apples, if the numbers were low (less than four). The horses chose randomly between buckets of four and six apples.

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Study: Topical Allergy Cream Can Produce Systemic Effects in Horses

Glucocorticoid cream applied at normal doses onto healthy equine skin will be quickly absorbed into the body"s system and can generate adverse systemic effects, said German researchers in a new study report. As a result, it can also cause a horse to test positive in performance drug tests within two days. When used to treat allergic skin reactions, glucocorticoids are

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Mares’ Social Bonds Might Enhance Reproductive Success

Mares that form close social bonds with other mares have improved pregnancy, foal birth, and foal survival rates, said a group of researchers studying wild herds in the North Island of New Zealand. The mares’ enhanced reproductive success appears to be linked primarily to mutual protection from harassment by stallions, they said.

Unlike most other mammal groups, the mares were

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Study: Horse Whinnies Packed with Information

Through their whinnies, horses convey specific information about their identities, including sex, height, and weight, according to French researchers. Acoustic analyses of whinnies and the reactions of horses to various recorded whinnies also suggest that the vocal calls play an important social role and appear to be unique to each horse.

This is the first study of its kind in horses,

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West Nile Virus Returns to Italy

West Nile virus (WNV) has re-emerged in Italy, resulting in 28 equine clinical cases, including seven deaths as of last week, according to an epidemiological bulletin produced by the Istituto Zooprofilattico Sperimentale dell’Abruzzo e del Molise “Giuseppe Caporale” (IZSA&M), an Italian public health institute.

The epidemic began in central eastern Italy in August, in the same

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Heparin Might Prevent Laminitis after Colic Surgery

Low molecular weight heparin (LMWH) is proving highly effective in preventing laminitis and reducing the severity of laminitis following colic surgery, according to Belgian researchers.

Prior to the study period, more than 10% of colic surgery patients at the Equine Clinic of the University of Liège developed laminitic pain and lameness following surgery. The majority of those horses had

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Paralyzed Foal Recovering after Surgery, Therapy

A once-paralyzed foal is now up and running about with the help of an equine “walker” following a groundbreaking surgery to remove a cyst from the spinal cord, according to the treating veterinarians in Belgium.

The Boulonnais draft horse filly, “Vittel,” underwent surgical laminectomy of the L2/L3 vertebrae at one month old on July 3, one week after being diagnosed with a fluid-filled

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Horses Read Human Body Cues, Researchers Say

Do you ever feel like your horse might be watching your every move? He very well might be, according to a new behavior study by British scientists. Their research indicates that horses are highly sensitive to the attention we attribute to them, including our gaze.

In a series of tests involving 36 horses and ponies aged 10 months to 38 years, two humans stood motionless in a paddock, eac

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Saddle Pad Research Shows Variable Changes in Rider Pressure

Saddle pads might help reduce painful pressure on a horse’s back caused by ill-fitting saddles, but the ideal pad will vary from horse to horse and from saddle to saddle, according to a new study by Austrian researchers.

Optimum pressure relief will also depend on the discipline and even the gait, said primary study author Anja Kotschwar, DVM, research scientist at the Movement Science

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