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Poster (Scientific congresses and symposiums)
Evaluation of the non-genetic factors of the racing performances of Arabian horses in Algeria
Tennah, Safia; Kafidi, Nacerredine; Antoine-Moussiaux, Nicolas et al.
20122nd Scientific Meeting of the Faculty of Veterinary Medicine
 

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Keywords :
selective breeding; flat racing; horse; non-genetic factors; Algeria
Abstract :
[en] Selective breeding of Arabian horses in Algeria is not yet well developped. No accurate estimation of the breeding values of racing horses is carried out untill now. The estimation is based on one or several measurable traits, linked to race performance. To allow for an accurate estimation, it is important to determine the part of the phenotypic variability that is due to non-genetic factors (environmental). This first study estimates phenotypic correlations between the recorded traits in order to deduce to what extent the different measures bring different information on animal performance. Then it estimates the influence on performance of non-genetic factors such as sex, age, year of performance and the interactions between these various factors. From 1995 to 2007, the data related to flat racing was collected. The General Linear Model was used to identify and quantify the non-genetic factors affecting racing performances. Three traits were used: two earnings traits (the logarithm of annual virtual earnings: LAEV and the logarithm of average annual virtual earnings per start: LAEV/S), and one ranking trait (the ranking transformed and normalised: PERF). Significant high positive correlations was observed between the three traits (p<0.001), which thus give account of similar informative aptitudes. The effects of sex, age, year as well as the interactions between age and sex and between age and year turned out to be significant for the three traits (p<0.05). These results indicate the need to adjust the earnings and ranks traits in order to use them as criteria of selection of racing Arabian horses.
Disciplines :
Genetics & genetic processes
Author, co-author :
Tennah, Safia ;  Université de Liège - ULiège > Doct. sc. vété. (Bologne)
Kafidi, Nacerredine
Antoine-Moussiaux, Nicolas  ;  Université de Liège - ULiège > Département de productions animales > Biostatistique, économie, sélection animale
Michaux, Charles ;  Université de Liège - ULiège > Département de productions animales > Biostatistique, économie, sélection animale
Leroy, Pascal ;  Université de Liège - ULiège > Département de productions animales > Biostatistique, économie, sélection animale
Farnir, Frédéric  ;  Université de Liège - ULiège > Département de productions animales > Biostatistiques et bioinformatique appliquées aux sc. vétér.
Language :
English
Title :
Evaluation of the non-genetic factors of the racing performances of Arabian horses in Algeria
Alternative titles :
[fr] Evaluation des paramètres non-génétiques des performances des chevaux de course pur-sang arabe en Algérie
Publication date :
19 October 2012
Event name :
2nd Scientific Meeting of the Faculty of Veterinary Medicine
Event organizer :
Faculty of Veterinary Medicine, ULg
Event place :
Liège, Belgium
Event date :
19 october 2012
Audience :
International
Available on ORBi :
since 18 September 2013

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