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Genetic parameters for traits evaluated at field tests of 3- and 4-year-old Swedish Warmblood horses
Viklund, Åsa and Thorén Hellsten, Emma and Näsholm, Anna and Strandberg, Erling and Philipsson, Jan
(2008).
Genetic parameters for traits evaluated at field tests of 3- and 4-year-old Swedish Warmblood horses.
Animal. 2
:12
, 1832-1841
[Research article]
Official URL: http://dx.doi.org/10.1017/S1751731108003030 AbstractThere are two types of 1-day field tests available for young Swedish Warmblood sport horses; one test for 3-year olds and one more advanced test for 4-year olds. Conformation, gaits and jumping ability are evaluated at both tests. Studies on various genetic parameters were based on about 20 000 tested horses. The data for 4-year olds consisted of 30 years of testing. The aims of the study were to estimate genetic parameters for results from different time periods, and to estimate heritabilities for, and genetic correlations between, traits scored in the two tests. The judgement of traits was shown to have been changed during the 30 years of testing, resulting in changes in higher heritabilities in, and stronger genetic correlations between, later time periods. In the first time period, records showed higher residual and lower genetic variances than in the subsequent time periods. Genetic correlations between traits recorded in the first and last time period deviated considerably from unity. Further studies are needed to investigate how to treat data from the early period in genetic evaluations. Heritabilities were moderate to high for conformation traits (0.24 to 0.58) at both types of tests, except for correctness of legs (0.08). The heritabilities for gait traits were also moderate to high (0.37 to 0.53). For jumping traits, the heritabilities ranged between 0.17 and 0.33. The highly positive genetic correlations (0.82 to 0.99) between corresponding traits tested at the simpler test for 3-year olds and at the ridden test of 4-year olds implied that it would be desirable to include the test results of 3-year olds into the genetic evaluation as breeding values for Swedish Warmbloods for many years has only been based on results from 4-year olds. Authors/Creators: | Viklund, Åsa and Thorén Hellsten, Emma and Näsholm, Anna and Strandberg, Erling and Philipsson, Jan |
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Title: | Genetic parameters for traits evaluated at field tests of 3- and 4-year-old Swedish Warmblood horses |
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Series Name/Journal: | Animal |
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Year of publishing : | 2008 |
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Volume: | 2 |
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Number: | 12 |
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Page range: | 1832-1841 |
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Publisher: | Cambridge University Press |
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ISSN: | 1751-732X |
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Language: | English |
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Additional Information: | Originally published by Cambridge University Press in Animal. doi:10.1017/S1751731108003030 |
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Publication Type: | Research article |
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Refereed: | Yes |
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Full Text Status: | Public |
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Subjects: | Obsolete subject words > FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING > Animal production > Animal breeding Obsolete subject words > NATURAL SCIENCES > Biology > Cell and molecular biology > Genetics |
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Keywords: | riding horses, performance test, animal model, heritability, genetic correlation |
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URN:NBN: | urn:nbn:se:slu:epsilon-8-825 |
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Permanent URL: | http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-8-825 |
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ID Code: | 5448 |
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Department: | (VH) > Dept. of Animal Breeding and Genetics |
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Deposited By: |
Åsa Viklund
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Deposited On: | 14 Oct 2010 00:00 |
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Metadata Last Modified: | 02 Dec 2014 10:40 |
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Repository Staff Only: item control page Related resources Related document* | Viklund, Åsa (2010). Genetic evaluation of swedish warmblood horses. Diss. (sammanfattning/summary) Uppsala : Sveriges lantbruksuniv., Acta Universitatis agriculturae Sueciae, 1652-6880 ; 2010:48 | Related document* | Thorén Hellsten, Emma (2008). International sport horse data for genetic evaluation. Diss. (sammanfattning/summary) Uppsala : Sveriges lantbruksuniv., Acta Universitatis agriculturae Sueciae, 1652-6880 ; 2008:32 | Related document* | Petersson, Karl-Johan and Strandberg, Erling and Gustafsson, Hans and Royal, Melissa D. and Berglund, Britt (2008). Detection of delayed cyclicity in dairy cows based on progesterone content in monthly milk samples. Preventive veterinary medicine. 86:1-2, | Related document* | Petersson, Karl-Johan and Strandberg, Erling and Gustafsson, Hans and Berglund, Britt (2006). Environmental effects on progesterone profile measures of dairy cow fertility. Animal reproduction science. 91:3-4, 201-214 | References* | Koenen, E.P.C., Aldridge, L.I., Philipsson, J. An overview of breeding objectives for warmblood sport horses (2004) Livestock Production Science, 88 (1-2), pp. 77-84. | References* | Thorén Hellsten, E., Viklund, Å., Koenen, E.P.C., Ricard, A., Bruns, E., Philipsson, J. Review of genetic parameters estimated at stallion and young horse performance tests and their correlations with later results in dressage and show-jumping competition | References* | Wallin, L., Strandberg, E., Philipsson, J. Genetic correlations between field test results of Swedish Warmblood Riding Horses as 4-year-olds and lifetime performance results in dressage and show jumping (2003) Livestock Production Science, 82 (1) | References* | Gerber Olsson, E., Árnason, T., Näsholm, A., Philipsson, J. Genetic parameters for traits at performance test of stallions and correlations with traits at progeny tests in Swedish warmblood horses (2000) Livestock Production Science, 65 (1-2), pp. 81-89. | References* | Holmström, M., Philipsson, J. Relationships between conformation, performance and health in 4-year-old swedish warmblood riding horses (1993) Livestock Production Science, 33 (3-4), pp. 293-312. | References* | Huizinga, H.A., Boukamp, M., Smolders, G. Estimated parameters of field performance testing of mares from the Dutch Warmblood riding horse population (1990) Livestock Production Science, 26 (4), pp. 291-299 | References* | Wallin, L., Strandberg, E., Philipsson, J. Phenotypic relationship between test results of Swedish Warmblood horses as 4-year-olds and longevity (2001) Livestock Production Science, 68 (2-3), pp. 97-105. | References* | Árnason, T. Contribution of various factors to genetic evaluations of stallions (1987) Livestock Production Science, 16 (4), pp. 407-419. | References* | Dietl, G., Hoffmann, S., Reinsch, N. Impact of trainer and judges in the mare performance test of Warmblood Horses (2005) Archiv fur Tierzucht, 48 (2), pp. 113-120. | References* | Viklund, A., Philipsson, J., Wikström, A., Árnason, T., Thorén, E., Näsholm, A., Strandberg, E., Fredricson, I. Testing young Swedish riding horses for sport and for genetic evaluations (2005) | Is referenced by* | Stewart, I.D., Woolliams, J.A., Brotherstone, S. Genetic evaluations of traits recorded in British young horse tests (2011) Archiv fur Tierzucht, 54 (5), pp. 439-455. | Is referenced by* | Braam, Å., Näsholm, A., Roepstorff, L., Philipsson, J. Genetic variation in durability of Swedish Warmblood horses using competition results (2011) Livestock Science, 142 (1-3), pp. 181-187. | Is referenced by* | Becker, A.-C., Stock, K.F., Distl, O. Genetic correlations between free movement and movement under rider in performance tests of German Warmblood horses (2011) Livestock Science, 142 (1-3), pp. 245-252. | Is referenced by* | Borowska, A., Wolc, A., Szwaczkowski, T. Genetic variability of traits recorded during 100-day stationary performance test and inbreeding level in Polish warmblood stallions (2011) Archiv fur Tierzucht, 54 (4), pp. 327-337. | Is referenced by* | Stewart, I.D., Woolliams, J.A., Brotherstone, S. Genetic evaluation of horses for performance in dressage competitions in Great Britain (2010) Livestock Science, 128 (1-3), pp. 36-45. | Is referenced by* | Bhatnagar, A.S., Lewis, R.M., Notter, D.R., Schacht, C., Splan, R.K. Genetic parameters of foal inspection scores for two North American sporthorse registries (2011) Livestock Science, 140 (1-3), pp. 88-94. |
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