A survey of reproductive performance in Thoroughbred mares and morbidity, mortality and athletic potential of their foals

Equine Veterinary Journal
P S Morley, H G Townsend

Abstract

A survey was performed to evaluate the reproductive performance of Thoroughbred mares, estimate risks of dystocia and of morbidity and mortality in foals during the first year post partum and their physical acceptability at age one year. The study population consisted of registered Thoroughbred mares and their foals owned by residents of 4 Western Canadian provinces. Owners were identified using information obtained from the North American Jockey Club, and questionnaires were mailed regarding mares bred in 1988 and their foals born in 1989. Eighty-three per cent of mares were reported to be pregnant at some stage following breeding, and 80% of pregnant mares subsequently gave birth to live foals. Estimates of morbidity and mortality were greater than previously reported, 25% of foals had health problems and 5% died during the first 2 weeks postpartum. Twenty-seven per cent of foals surviving 2 weeks were reportedly affected by some health problem between age 15 days and one year, and 6% died during this period. The case fatality rates of horses with upper respiratory tract infections and diarrhoea were much lower than case fatality rates for infectious diseases occurring less frequently. The rate of death or euthanasia among ho...Continue Reading

References

Mar 1, 1979·Journal of Animal Science·H F HintzL D Van Vleck
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Citations

Nov 4, 2000·Preventive Veterinary Medicine·W C LosingerP S Morley
Dec 7, 2007·New Zealand Veterinary Journal·C W RogersE C Firth
May 19, 2012·Equine Veterinary Journal. Supplement·A K FooteK E Whitwell
Mar 20, 2015·Reproduction, Fertility, and Development·Charles F Scoggin
Jul 8, 2011·Preventive Veterinary Medicine·J L IrelandG L Pinchbeck
Jan 9, 2003·The Veterinary Clinics of North America. Equine Practice·Scott Madill
Sep 4, 2010·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·David R Glowacki, Michael J Pilling
Feb 2, 2002·Equine Veterinary Journal·L H A Morris, W R Allen
Mar 16, 2006·Equine Veterinary Journal·S WilsherJ L N Wood

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