The American Quarter Horse Journal: The American Quarter Horse Foundation recently donated $50,000 to Morris Animal Foundation (MAF) to advance equine health through MAF’s Equine Consortium for Genetic Research (ECGR) project.

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Veterinarians at the Smithsonian’s National Zoo performed the first successful reverse vasectomy on a Przewalski’s horse (E. ferus przewalskii; E. caballus przewalskii—classification debated), pronounced zshah-VAL-skeez.

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Spending lots of money on racehorse stud fees may not bring in the rewards that people might expect, according to a recent study.

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The American Holsteiner Horse Association (AHHA) has reached an agreement with the USEF concerning Life Recording Numbers.

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1936. Thirty years ago the Bureau of Animal Industry initiated its first horse breeding project.

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1972. Two separate heritability studies, using a newly developed rating system called Performance Rates based on multiple comparisons of horses with one another, were performed.

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1988.  An ANOVA method (the prior method), the iterative version of Henderson's simple method (IHSM) and the Tilde-hat method (THM) were used to estimate heritability and repeatability for racing time in American Quarter Horses.

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1991. The breeding of horses for racing performance has yet to fully benefit from genetic predictions from the data base available on objective measures of racing speed.

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1999. Thoroughbred and Quarter Horse yearlings (n = 24; 335 ± 7 d of age) were used in a 112-d feeding trial to determine whether chromium (Cr) supplementation would alter growth, development, and energy metabolism of growing horses on high-concentrate diets.

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1931. America has contributed two breeds of horses to domestic livestock. The two breeds are the American Standard Bred horse and the American Saddle horse.

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1988. Individual racing records were used to estimate the effects of sex, age and handicap weight on racing performance in American Quarter Horses.

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1988. A reduced animal model that accounted for repeated records was developed to evaluate American Quarter Horses genetically for racing performance.

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1980. Criteria used to measure performance, environmental factors that influence performance and estimates of heritability are needed to estimate genetic differences.

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1980. Dead or deformed foals produced by purebred parents represent an economic and emotional loss to the horse breeder. To avoid repeating production of such defective foals, the breeder may seek assistance in identifying the possible environmental or genetic causes for such animals. Only a few genetic diseases of the horse have been rigorously defined.

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1983. Pedigrees of randomly selected Quarter Horses born in each of the years 1946, 1956, 1966 and 1976 and of winning halter, cutting and race horses born in the same years were evaluated and compared.

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1988. More than 1 million racing records of American Quarter Horses were used to provide a description of Quarter Horse racing data. The data presented five racing distances (201,320, 366, 402 and 796 m).

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