Influence of osteochondrosis on the longevity and racing performance of standardbred trotters and pacers.
Vet Surg
; 50(3): 507-516, 2021 Apr.
Article
em En
| MEDLINE
| ID: mdl-33460472
ABSTRACT
OBJECTIVE:
To determine the influence of clinical osteochondrosis (OC) on the short-term (2, 3, and 4-year-old) and long-term racing performance and longevity of standardbred racehorses. STUDYDESIGN:
Retrospective case-control study. SAMPLE POPULATION Standardbred racehorses from a single breeding farm born between 2009 and 2017 that survived to racing age (n = 2711). Three hundred eighty-two (14%) horses were OC-affected (829 lesions confirmed arthroscopically during surgical treatment), and 2329 (86%) horses were nonaffected.METHODS:
Racing performance data were obtained from an online database and evaluated with multiple linear regression models.RESULTS:
Trotters were more likely than pacers to be affected by OC (odds ratio [OR] = 1.4, 95% CI = 1.1-1.9, P = .006). Compared with nonaffected horses, long-term OC-affected horses had 8.8 fewer starts (95% CI = -14.4 to -3.2, P = .002), 1.0 fewer wins (95% CI = -1.9 to -0.1, P = .030), and 3.8 fewer total number of first through third place finishes (95% CI = -6.2 to -1.4, P < .0001). Nonaffected horses had longer careers compared with OC-affected horses, racing 0.32 years longer (95% CI = -0.52 to -0.12, P = .002). Osteochondrosis had no impact on short-term racing performance. Horses with lesions at the distal intermediate ridge of the tibia or lateral trochlear ridge of the talus had decreased performance compared with horses without these lesions.CONCLUSION:
Pacers were less likely than trotters to be affected by OC. Affected horses had fewer starts and shorter careers, despite early surgical intervention. CLINICALSIGNIFICANCE:
Osteochondrosis decreases long-term racing performance in racing standardbreds.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Condicionamento Físico Animal
/
Osteocondrose
/
Doenças dos Cavalos
/
Longevidade
Tipo de estudo:
Etiology_studies
/
Observational_studies
Limite:
Animals
Idioma:
En
Ano de publicação:
2021
Tipo de documento:
Article