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Titolo:
Factors associated with time until first race and career duration for Thoroughbred racehorses
Autore:
Bailey, CJ; Reid, SWJ; Hodgson, DR; Rose, RJ;
Indirizzi:
Univ Sydney, Dept Vet Clin Sci, Sydney, NSW 2006, Australia Univ Sydney Sydney NSW Australia 2006 in Sci, Sydney, NSW 2006, Australia Univ Glasgow, Sch Vet, Dept Vet Clin Studies, Glasgow G61 1QH, Lanark, Scotland Univ Glasgow Glasgow Lanark Scotland G61 1QH ow G61 1QH, Lanark, Scotland Univ Sydney, Rural Vet Ctr, Dept Anim Hlth, Camden, NSW 2570, Australia Univ Sydney Camden NSW Australia 2570 m Hlth, Camden, NSW 2570, Australia
Titolo Testata:
AMERICAN JOURNAL OF VETERINARY RESEARCH
fascicolo: 10, volume: 60, anno: 1999,
pagine: 1196 - 1200
SICI:
0002-9645(199910)60:10<1196:FAWTUF>2.0.ZU;2-H
Fonte:
ISI
Lingua:
ENG
Soggetto:
AGE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
9
Recensione:
Indirizzi per estratti:
Indirizzo: Rose, RJ Univ Sydney, Dept Vet Clin Sci, Sydney, NSW 2006, Australia Univ Sydney Sydney NSW Australia 2006 ydney, NSW 2006, Australia
Citazione:
C.J. Bailey et al., "Factors associated with time until first race and career duration for Thoroughbred racehorses", AM J VET RE, 60(10), 1999, pp. 1196-1200

Abstract

Objective-To determine whether sex or foaling period were associated with time to first race start and whether sex, age at time of first race start, or inter-race period were associated with career duration for Thoroughbred racehorses in Australia. Animals-553 Thoroughbred racehorses. Procedure-Race records through to the end of the 6-year-old racing season were obtained for each horse. Product-limit survival analysis was used to determine whether sex or foaling period was associated with time to first race start and whether sex or age at first race was associated with career duration. A Cox proportional hazards model was used to determine whether sex,age at first possible race, age at first race, or inter-race period was associated with time to first race start or career duration. Results-472 horses (85.4%) raced. Time to first race start was not associated with sex or foaling period. However, males, who had their first race ata younger age and a greater mean number of rest days between races, had longer careers. The hazard ratio for career duration of males versus females,controlling for age at time of first race and inter-race period (0.27), confirmed that males had a higher probability of a long racing career. Conclusions and Clinical Relevance-Results suggest that for Thoroughbred racehorses, sex and time of birth during the foaling season were not associated with time to first race. Male Thoroughbred racehorses that were raced less intensively or raced at a younger age were more likely to have long racing careers.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/04/20 alle ore 01:02:16