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Correlations of unfavorable movement characteristics in warmblood foals and mares with routinely assessed conformation and performance traits

Published online by Cambridge University Press:  06 July 2012

A.-C. Becker ,
K. F. Stock  and
O. Distl
A.-C. Becker
Affiliation:
Institute for Animal Breeding and Genetics, University of Veterinary Medicine Hannover, Buenteweg 17p, 30559 Hanover, Germany
K. F. Stock*
Affiliation:
Institute for Animal Breeding and Genetics, University of Veterinary Medicine Hannover, Buenteweg 17p, 30559 Hanover, Germany Vereinigte Informationssysteme Tierhaltung w.V., Heideweg 1, 27283 Verden, Germany
O. Distl
Affiliation:
Institute for Animal Breeding and Genetics, University of Veterinary Medicine Hannover, Buenteweg 17p, 30559 Hanover, Germany
*
†E-mail: [email protected]
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Abstract

New movement traits reflecting unfavorable movement characteristics were defined on the basis of detailed movement evaluations (DME) of warmblood foals and mares performed in connection with regular breeding events of the Oldenburg horse breeding societies in 2009 and 2010. DME information was available for 3374 foals and 2844 mares and used for correlation analyses with conformation information on 1987 mares from studbook inspections (SBI) in 2009 and performance information on 2758 mares from mare performance tests (MPT) in 2000 to 2008. Analyses of variance revealed few significant differences between scores for SBI and MPT traits in mares without and with indications of imbalance (IMB) in general or specific findings like irregular tail tone or posture (TTP). SBI scores for general impression and development were significantly lower and MPT scores for trot under rider tended to be higher in IMB-positive mares. Genetic parameters were estimated in linear animal models with residual maximum likelihood. Additive genetic correlations and Pearson correlation coefficients between univariately predicted breeding values indicated unfavorable genetic correlations of IMB and TTP with dressage-related conformation and performance traits. For SBI and MPT traits, we found similarities between the correlation patterns for DME traits in foals and mares. The results implied that breeding of dressage horses may benefit from revision of current movement evaluation and consideration of specific movement characteristics.

Keywords

indications of imbalancemare performance teststudbook inspectiongenetic correlation
Type
Breeding and genetics
Information
animal , Volume 7 , Issue 1 , January 2013 , pp. 11 - 21
Copyright
Copyright © The Animal Consortium 2012

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