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The relationship between longevity and different traits scored in the Swedish Riding Horse Quality Test (RHQT) was studied to evaluate their use as predictors of survival. Data comprised 1815 Warmblood horses born between 1969 and 1982 that had participated in the RHQT as 4-year-olds. Survival information was obtained via a questionnaire sent to owners of horses that had participated in the RHQT between 1973 and 1986. All phenotypic values of traits scored at 4 years of age were adjusted for the effect of place/year (event). Survival analysis was performed taking into account censoring. Traits having significant effects on longevity were: conformation, legs (included in conformation), orthopaedic status, jumping ability, and the horses' combined classification score for dressage and jumping talents, respectively. Orthopaedic health had the greatest influence on longevity, and demonstrated the importance of judging health traits in young sports horses. The results of this study confirmed that there is a significant phenotypic relationship between many of the RHQT traits and longevity, and thus the possibility of using them as predictors of survival. (C) 2001 Elsevier Science B.V. All rights reserved

Ability. --- Age. --- Analysis. --- Boxes. --- Breeding. --- Classification. --- Conformation. --- Dressage. --- Health. --- Horse. --- Horses. --- Jumping. --- Longevity. --- Quality. --- Questionnaire. --- Survival analysis. --- Survival. --- Test traits. --- Test. --- Time. --- Young.

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Livestock --- Animal culture