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

Researchers Reverse Temporary Immunocastration

Stallions which do not fully recover breeding capacity after temporary castration via a vaccine that works against reproductive hormone GnRH can now be assisted through daily injections of buserelin, a GnRH agonist, said European researchers.

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Posture, Behaviors Indicate Horse Well-Being

If a horse spends most of his time standing in the same position in his stall, would you say he’s just bored? And what about a mare that threatens to bite when you approach her stall–is she vicious?

The latest behavior research

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Horse Stereotypies Vary by Discipline, Researchers Say

Some horses crib, some weave, some chew wood. Some have many in-stall habits, while others have practically none. But these equine stereotypies are not as random as they might seem. According to recent findings from an equine behavior research

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Racehorse Training Injuries Vary by Stable in New Study

Which kind of injury is most common to a racehorse? That all depends on who trains it and at which track, according to a group of British researchers. Their recent survey of three major Thoroughbred stables in the United Kingdom showed that the

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Training: Positive Reinforcement Improves Horse Memory

The research team that demonstrated yearlings perform much better if their training included feed rewards as positive reinforcement is now back to let us know that positive reinforcement gets engrained in young horses’ minds for the long ha

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Pregnant Mare Exercise: No Negative Effect on Fetuses in Study

Some of us tend to think we should keep a broodmare’s physical efforts down to a minimum. But new research shows the heart rates of 9-month-old fetuses remained unchanged during and after maternal exercise. Furthermore, plasma cortisol and plasma lactate concentrations were lower for the pregnant mares than for the same mares post-partum for the same exercise tests. These results indicate that the

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German Competition Horse Medication Policies Revised

Getting away with doping in equestrian events is about to become even harder for equestrians practicing in a country recognized worldwide for its horsemanship.

The German Equestrian Sports Federation (FN) has announced new regulations to control doping, both in and out of competition, with reinforced sanctions, intensified monitoring, and a specific list of 70 forbidden substances

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Freeze Stops European Atypical Myopathy Reports

The largest outbreak of equine atypical myopathy in Europe has ended with freezing winter temperatures, with a record number of 371 reported cases, according to a group of researchers in Belgium.

Atypical myopathy causes severe generalized weakness and stiffness, often ending in death. Urine becomes coffee-colored, and blood workups show significant increases i

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