Veterinarians and public health experts urge owners to protect their horses by reducing mosquito populations and possible breeding areas.
Variation in the athletic performance of some mares that appear related to the estrous cycle have been observed. Estrus‐related behavioral or performance problems include difficulties during riding or training, back or flank pain, aggressiveness to other horses or people, frequent urination, colic signs and undesirable estrous behavior during competition or training.
In recent years there has been a shift in the U.S. horse population, with aged horses (≥15 years) an increasing percentage (20-30%). Many of these older horses remain actively involved in equestrian sport competitions, are still being bred, or serve as companion animals.
An easy keeper seems to absorb nutrients from the barest minimum of food; sometimes these horses are affectionately called “air ferns.”
Equine herpesvirus type 1 (EHV‐1) is a growing concern in the horse industry. This virus can live within horses for a long period of time, perhaps even throughout their entire life, making it a common disease in the population. Up to 90% of horses are infected with EHV‐1 by the time they are 2 years old.