Genetic parameters for jumping performance in Brazilian Sport Horses
This study aimed to estimate genetic parameters for jumping measures in the Brazilian Sport Horses breed, looking to see which jump characteristics can be evaluated early and that present favorable genetic correlations (ϒg) with measures of later sports performance. Data were available for the resu...
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| Format: | Article |
| Language: | English |
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Universidade Federal de Goiás
2023-09-01
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| Series: | Ciência Animal Brasileira |
| Online Access: | https://revistas.ufg.br/vet/article/view/75434 |
| _version_ | 1797676740112285696 |
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| author | Bethânia Rocha Medeiros Petra Garbade Vanessa Peripolli Laila Talarico Dias Concepta Margaret McManus |
| author_facet | Bethânia Rocha Medeiros Petra Garbade Vanessa Peripolli Laila Talarico Dias Concepta Margaret McManus |
| author_sort | Bethânia Rocha Medeiros |
| collection | DOAJ |
| description |
This study aimed to estimate genetic parameters for jumping measures in the Brazilian Sport Horses breed, looking to see which jump characteristics can be evaluated early and that present favorable genetic correlations (ϒg) with measures of later sports performance. Data were available for the results of jumping competitions on the Brazilian Sport Horses. Two traits were calculated: Classification (CLASS) of the animal (taking into consideration obstacle height, number of competitors, type of competition (regional, national, international) and final score (SCOREF) taking into consideration the weight of the competition, height of the obstacles and score for the placement and type of event. Heritabilities were low for the full database (0.00 and 0.07 for CLASS and SCOREF, respectively), but higher when only young horses were considered (0.09 and 0.67, respectively). Genetic correlations between these traits and subjective functional traits (using a scale of 0 to 10) measured at stallion approval for reproduction showed that Power was favorable for indirect selection for both traits (-0.85 for CLASS and 1.00 for SCOREF). Jump also showed a favorable correlation for SCOREF (0.53) but unfavorable for CLASS (1.00). Considering the importance of Temperament and the absence of unfavorable genetic correlations between it and competition results it was concluded that this trait can be maintained among the selection objectives of Brazilian Sport Horses. Suggestions are made for further genetic studies with this breed, and possible modifications in the evaluation regulations to improve data quality.
Keywords: competition; final score; genetic correlations; heritability; temperament
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| first_indexed | 2024-03-11T22:34:42Z |
| format | Article |
| id | doaj.art-3ae3c52fcfde4961954fe7e1c5d6de13 |
| institution | Directory Open Access Journal |
| issn | 1518-2797 1809-6891 |
| language | English |
| last_indexed | 2024-03-11T22:34:42Z |
| publishDate | 2023-09-01 |
| publisher | Universidade Federal de Goiás |
| record_format | Article |
| series | Ciência Animal Brasileira |
| spelling | doaj.art-3ae3c52fcfde4961954fe7e1c5d6de132023-09-22T21:07:21ZengUniversidade Federal de GoiásCiência Animal Brasileira1518-27971809-68912023-09-0124Genetic parameters for jumping performance in Brazilian Sport HorsesBethânia Rocha Medeiros0Petra Garbade1Vanessa Peripolli2Laila Talarico Dias3Concepta Margaret McManus 4Instituto Federal Catarinense (IFC), Campus Araquari, Araquari, Santa Catarina, Brasil.Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, BrasilInstituto Federal Catarinense (IFC), Araquari, Santa Catarina, BrasilUniversidade Federal do Paraná (UFPR), Curitiba, Paraná, BrasilUniversidade de Brasília (UnB), Brasília, Distrito Federal, Brasil This study aimed to estimate genetic parameters for jumping measures in the Brazilian Sport Horses breed, looking to see which jump characteristics can be evaluated early and that present favorable genetic correlations (ϒg) with measures of later sports performance. Data were available for the results of jumping competitions on the Brazilian Sport Horses. Two traits were calculated: Classification (CLASS) of the animal (taking into consideration obstacle height, number of competitors, type of competition (regional, national, international) and final score (SCOREF) taking into consideration the weight of the competition, height of the obstacles and score for the placement and type of event. Heritabilities were low for the full database (0.00 and 0.07 for CLASS and SCOREF, respectively), but higher when only young horses were considered (0.09 and 0.67, respectively). Genetic correlations between these traits and subjective functional traits (using a scale of 0 to 10) measured at stallion approval for reproduction showed that Power was favorable for indirect selection for both traits (-0.85 for CLASS and 1.00 for SCOREF). Jump also showed a favorable correlation for SCOREF (0.53) but unfavorable for CLASS (1.00). Considering the importance of Temperament and the absence of unfavorable genetic correlations between it and competition results it was concluded that this trait can be maintained among the selection objectives of Brazilian Sport Horses. Suggestions are made for further genetic studies with this breed, and possible modifications in the evaluation regulations to improve data quality. Keywords: competition; final score; genetic correlations; heritability; temperament https://revistas.ufg.br/vet/article/view/75434 |
| spellingShingle | Bethânia Rocha Medeiros Petra Garbade Vanessa Peripolli Laila Talarico Dias Concepta Margaret McManus Genetic parameters for jumping performance in Brazilian Sport Horses Ciência Animal Brasileira |
| title | Genetic parameters for jumping performance in Brazilian Sport Horses |
| title_full | Genetic parameters for jumping performance in Brazilian Sport Horses |
| title_fullStr | Genetic parameters for jumping performance in Brazilian Sport Horses |
| title_full_unstemmed | Genetic parameters for jumping performance in Brazilian Sport Horses |
| title_short | Genetic parameters for jumping performance in Brazilian Sport Horses |
| title_sort | genetic parameters for jumping performance in brazilian sport horses |
| url | https://revistas.ufg.br/vet/article/view/75434 |
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