CURRICULUM VITAE


Name: Thorvaldur Árnason

Adress: Knubbov. 34, S-744 94 MORGONGÅVA, Sweden

Tel. number: +46 224 6019 1

+46 224 6010 9

+46 70 5336 527 (mobile)

E-Mail: ihbcab@bahnhof.se, thorvaldura@lbhi.is

web site: www.ihbc.se

Date of birth: 12th of November 1948

Nationality: Icelandic


CV updated 21st March 2012


Education at university level

Agr.Dr. In Animal Breeding, Uppsala, Sweden, 1884

M.Sc. in Animal Breeding, Edinburgh, Scotland, 1977

B.Sc. in General Agriculture, Hvanneyri, Iceland, 1975


Employment Time Period


Part-time professorship at the Agricultural University of Iceland, 19.4.2006 -

Faculty of Land and Animal Resources.


Chief in own consulting firm “International Horse Breeding 27.3.1986 -

Consultant AB”. The work has involved genetic studies and

evaluation of breeding values of horses (trotters, warm blood

riding horses, thoroughbreds and Icelandic toelter horses) by

advances biometrical methods. Much of the work has been done

on the basis of direct agreement with horse breeding organizations,

other research jobs have involved cooperation with the Swedish

University of Agricultural Sciences and The Farmers association

of Iceland.


Research officier at the Department of Animal Breeding and 1.2.1984 – 7.7.1987

Genetics, Swedish University of Agricultural Sciences, Division

for General Animal Breeding Theory. Main subjects: development

and application of biometrical methods in animal breeding.


Research assistant at the Department of Animal Breeding and 1.1.1980 – 31.3.1980

Genetics, Swedish University of Agricultural Sciences. The work 1.6.1983 – 31.1.1984

involved genetic studies on trotters.


Research officier with teaching duty at the Agricultural School, 1.10.1981 – 31.5.1983

Hólar, Iceland.


Research off icier at the State owned stallion station at Litla-Hraun. 1.11.1976 – 30.9.1979

Employed by the Agricultural Society of Iceland.


Scientific activities in form of conferences, study, publications etc.

Scientific papers and other scientific publications (thesis, conference

articles etc.) are listed in a reversed chronological order further below.

International conferences and study trips Time period


62nd annual meeting of EAAP,Stavanger, Norway (contribution, chairman) 29.8-2.9.2011


61st annual meeting of EAAP, Heraklion, Greece (contribution) 23-27.8.2010


9th world congress on genetic applied to livestock production, 1-6.8.2010

Leipzig, Germany


60th annual meeting of EAAP, Barcelona, Spain (contribution) 24-27.8.2009


59th annual meeting of EAAP, Vilnius,Lithuania 24-27.8.2008


58th annual meeting of EAAP, Dublin, Ireland (contribution) 26-29.8.2007


8th world congress on genetic applied to livestock production, 13-18.8.2006

Belo Horizonte, Brazil (contribution)


57th annual meeting of EAAP, Antalya, Turkey (contribution) 17-20.9.2006


56th annual meeting of EAAP, Uppsala, Sweden (contribution) 5-8.6.2005


55th annual meeting of EAAP, Bled, Slovenia (contribution) 5-9.9.2004


An International Symposium in Selfoss, Iceland, “Diseases of the 27-28.6.2004

Icelandic Horse” (contribution)


54th annual meeting of EAAP, Rome, Italy 31.8-3.9.2003


7th world congress on genetic applied to livestock production, 19-23.8.2002

Montpellier, France


52nd annual meeting of EAAP, Budapest, Hungary (contribution) 26-29.8.2001


51st annual meeting of EAAP, The Hague, The Netherlands (contribution) 21-24.8.2000


Sabbatical research and study period, University of New England, 1.1-2.6.1999

Armidale, NSW, Australia.


49th annual meeting of EAAP, Warsaw, Poland (contribution) 24-27.8.1998


6th world congress on genetic applied to livestock production, 11-16.1.1998

Armidale, NSW, Australia (contribution, chairman)


48th annual meeting of EAAP, Vienna, Austria (contribution) 25-28.8.1997


47th annual meeting of EAAP, Lillehammer, Norway (contribution) 25-29.8.1996


46th annual meeting of EAAP, Prague, Czech Republic 4-7.9.1995


45th annual meeting of EAAP, Edinburgh, Scotland (contribution) 5-8.9.1994


5th world congress on genetic applied to livestock production, Guelph, 7-12.8.1994

Canada (contribution)


International symposium on Horse breeding and production in cold climatic 11-13.8.1993

regions Reykjavik, Iceland (contribution)


13th Biennial World Trotting Conference, Paris, France (contribution) 18-28.6.1993


43rd annual meeting of EAAP, Madrid, Spain (contribution) 14-17.9.1992

42nd annual meeting of EAAP, Berlin, Germany (contribution) 9-12.9.1991


4th world congress on genetic applied to livestock production, 23-27.7.1990

Edinburgh, Scotland (contribution, chairman)


World symposium in honor of professor R.D. Politiek: Advances in 11-14.9.1988

Animal breeding, Wageningen, The Netherlands


6th world conference on animal production, Helsinki, Finland (contribution) 27.6-1.7.1988


International colloquium: Breeding program of sport horses, Paris, 9.3.1988

France (contribution)


38th annual meeting of EAAP, Lisbon, Portugal (contribution) 28.9-1.10.1987


International symposium: Advances in statistical methods for genetic 16-20.2.1987

improvement of livestock, Armidale, NSW, Australia


37th annual meeting of EAAP, Budapest, Hungary (contribution) 1-4.9.1986


36th annual meeting of EAAP Kallithea, Greece (contribution) 30.9-3.10.1985


Study trip to Ethiopia in connection with research work on Boran cattle 18.8-2.9.1984


35th annual meeting of EAAP, Hague, The Netherlands (contribution) 6-9.8.1984


34th annual meeting of EAAP, Madrid, Spain (contribution) 3-6.10.1983


33rd annual meeting of EAAP, Leningrad, Russia (contribution) 16-19.8.1982


32nd annual meeting of EAAP, Zagreb, Yugoslavia (contribution) 31.8-3.9.1981


Workshop on BLUP-techniques, Uppsala (contribution) 22-22.6.1981


31st annual meeting of EAAP, Munich, Germany (contribution) 1-4.9.1980


Internordic symposium: Biochemical genetics in animal breeding. 16.11.1979

Copenhagen, Denmark


International symposium on genetics and horse breeding. 17 – 18.9.1975

Dublin, Ireland


Additional statistical and genetics courses attended: Time period


SAS Programming, by Charlotte, Egsgaard Soerensen, The SAS institute 7-10.4.2008

(in Hvanneyri, Iceland)


Course (570) in development of Web Applications based on 21-24.5.2002

Java (integration of Java Servlets, JavaServer Pages och XML).

Given by Learning Tree International, Stockholm


Course (471) in Java programming given by Learning Tree Inter- 25-28.4.2000

national, Stockholm


Survival Analysis Applied to Animal Breeding and Epidemiology Course, 15-19.2.1999

by Dr V.P. Ducrocq


Gibbs sampling in Quantitative Genetics, by Dr. Daniel Sorensen, 9-13.9.1996

Danish Institute of Animal Science, Department of Breeding and

Genetics, Denmark (in Uppsala)


Application of Bayesian methods in animal breeding, by Prof. Daniel 29-5-2.6.1989

Gianola, University of Illinois, USA (in Uppsala)


Nordic Graduate Course in Prediction of breeding values using animal 18-20.8.1987

models, by Prof. B. Kennedy, University of Guelph (in Uppsala)


Variance component estimation, and best linear unbiased prediction in 23-29.4.1986

mixed models, with unbalanced data, by Prof. S.R. Searie, Cornell

University, USA (in Uppsala)


International course “Analysis of categorical data in animal breeding”, 3-14.9.1984

by Prof. D. Gianola, University of Illinois, USA (in St Ferreol, France)


Teaching practice Time period


Lectures in statistics for B.Sc. students at The Agricultural University of Iceland 2006-2011

(AUI), Hvanneyri, Iceland


Lectures in horse breeding for B.Sc. students at AUI 2006-2011


Fortran Programming of Linear Models for Prediction of Breeding 5-9.2008

Values in Animals. A 5 ECT PhD short course organized by The

Agricultural University of Iceland. Main lecturer.


Many seminars on various topics in animal breeding theory for 1980-98

postgraduate students and the staff at the Department of Animal

Breeding and Genetics, Uppsala


Lectures for postgraduate students in animal breeding on BLUP 1990

programming techniques, Swedish University of Agricultural Sciences,

Uppsala (30 lecture hours)


Annual lectures for undergraduate (M.Sc.) students in horses breeding, 1990-

SLU, Uppsala (3-4 lecture hours per year)


Teaching various topics of animal production, economi etc, 1981-83

at the Agricultural School, Hólar, Iceland


Lectures in horse breeding for B.Sc. students in agriculture at the 1977,79,83

Agricultural College, Hvanneyri, Iceland, ca 20-30 lecture hours per year


Supervision and other academic commissions Time period


Member of the Thesis committee on the Doctoral Thesis of Ilse van Grevenhof, 2011

Wageningen University


Supervision of 3 PhD students, AUI 2007-


Member of supervision group of one PhD student, Norwegian University of Life 2008-2011

Sciences


Member of supervision group of one Licentiate student, SLU 2004-2007


Main supervisor of one Agr. D student 1991-95


Fulfillment of the requirements for docent ship in animal breeding, 1988

particularly population genetics


Acted as an opponent at the doctoral defence of Dr Matti Ojala, 4.4.1986

University of Helsinki


Supervision of one M.Sc. student 1985-86


Supervision of five students (four in Iceland and one in Sweden) 1977-89

on their undergraduate thesis


Other achievements related to extension of animal (horse) breeding theory to practical breeders


Many talks about horse breeding for practical horse breeders in several countries


Many popular scientific articles about horse breeding


Leading a number of courses for breeders and judges of Icelandic Toelter horses


Operating as a breeding judge for Icelandic Toelter horses on many occasions in several countries. Qualified as an international breeding Judge by FEIF.


Active member of the Breeding Genetic Evaluation Group of FEIF since 2003.


Honorar member in Svenska Islandshästföreningen (2000).

List of scientific publications

Thesis


Agr.D. thesis 1983. Genetic studies on conformation and performance of Icelandic Toelter Horses. Swedish University of Agricultural Sciences


M.Sc. thesis 1976. Studies on traits in the Icelandic riding ponies. University of Edinburgh


B.Sc thesis 1975. Erfðir skrokkmála Islenskra hrossa (inheritance of body measurements on Icelandic toelter horses). Report 17, The Agricultural Collage Hvanneryri, 1977


Scientific Text books


Árnason, Thorvaldur 2011. Breeding in horses. Chapter 340 in Encyclopedia of Sustainability Science and Technology, DOI 10.1007/978-1-4419-0851-3. Springer Science+ Business Media LLC 2011


Árnason, Th. & Van Vleck, L.D. 2001. Genetic improvement of the horse. Chapter 17 in The Genetics of the Horse. (ed. A.T. Bowling & A. Ruvinsky). CAB International, Wallingford, Oxon, UK (pp. 473-497)



Refereed scientific journal articles

Olsen, H.F., Klemetsdal, G., Ødegård, J. & Árnason, T., 2012. Validation of alternative models in genetic evaluation of racing performance in Nort Swedish and Norwegian cold-blooded trotters. J. Anim. Breed. Genet. 129, 164-170.

Árnason, T., Albertsdóttir, E., Fikse, W.F., Eriksson, S.& Sigurdsson, Á., 2012. Estimation of genetic parameters and response to selection for a continuous trait subject to culling before testing. J. Anim. Breed. Genet. 129, 50-59.

Albertsdóttir, E., Árnason, T., Eriksson, S., Sigurdsson, Á. & Fikse, W.F., 2012. Effects of integrated genetic evaluations for Icelandic horses on predictive ability, accuracy and selection bias. J. Anim. Breed. Genet. 129,41-49.

Albertsdóttir, E., Eriksson, S., Sigurdsson, Á. & Árnason, T., 2011. Genetic analysis of ‘breeding field test status’ in Icelandic horses. . J. Anim. Breed. Genet. 128, 124-132.

Árnason, T. & Jónmundsson, J.V., 2008. Multiple trait genetic evaluation of ewe traits in Icelandic sheep. J. Anim. Breed. Genet. 125, 390-396.

Albertsdóttir, E., Eriksson, S., Näsholm, A., Strandberg, E. & Árnason, T., 2008. Genetic correlations between competition traits and traits scored at breeding field-tests in Icelandic horses. Livest. Sci. 114, 181-187.


Albertsdóttir, E., Eriksson, S., Näsholm, A., Strandberg, E. & Árnason, T., 2006. Genetic analysis of competition data on Icelandic horses. Livest. Sci. 110, 242-250.


Björnsdóttir, S., Árnason, Th., & Lord, P. 2003. Culling rate of Icelandic Horses due to bone spavin. Acta vet. Scand. 44, 161-169


Árnason, Th. & Björnsdóttir, S. 2003.Heritability of age-at-onset of bone spavin in Icelandic horses estimated by survival analysis. Livest. Prod. Sci. 79, 285-293


Árnason, Th. 2001. Trends and asymptotic limits for racing speed in standardbred trotters. Livest. Prod. Sci. 72, 135-145


Gerber-Olsson, E., Árnason, Th., Näsholm, A. & Philipsson, J. 2000. Genetic parameters for traits at performance test of stallions and correlations with traits at progeny tests in Swedish warmblood Horses. Livest. Prod. Sci. 65, 81-89


Björnsdótttir, S., Árnason, Th., Axelsson, M., Eksell, P., Sigurdsson, H. Carlsten, J. 2000. The heritability of degenerative joint disease in the distal tarsal joints in Icelandic horses. Livest. Prod. Sci. 63, 77-83


Árnason, Th. 1999. Genetic evaluation of Swedish standardbred trotters for racing performance traits and racing status. J. Anim. Breed. Genet. 116, 387-398


Roneus, B., Árnason, Th., Collinder, E. & Rasmussen, M. 1998. Arthroscopic removal of palmar/plantar osteochondral fragments (POF) in the metacarpo- and metatarso-phalangeal joints of standardbred trotters – outcome and possible genetic background to POF. Acta vet. Scand. 39, 15-24


Sigurdsson, Á. & Árnason, Th. 1995. Predicting genetic trend by uni- and multitrait models. Acta Agric. Scand. A: Animal Sci. 45, 1-10


Philipsson, J., Banos, G. & Árnason, Th. 1994. Present and future uses of selection index methodology in dairy cattle. J. Dairy Sci. 77, 3252-3261


Árnason, Th. & Bjarnason, Th. 1994. Growth, development and size of Icelandic toelter horses. Icel. Agr. Sci. 8, 73-83


Árnason, Th., Jensen, P., Klemetsdal, G., Ojala, M & Philipsson, J. 1994. Experience from application of animal breeding theory in Nordic horse breeding. Livestock Production Science 40, 9-19


Roneus, M., Essen-Gustavsson, B. & Árnason, Th. 1993. Racing performance and longitudinal changes in muscle characteristics in standardbred trotters. Journal of Equine Veterinary Science 13, 355-361


Norell, L., Árnason, Th.& Hugason, K.1991. Multi-stage index selection in finite populations. Biometrics 47, 205-221


Sigurdsson, Á. & Árnason, Th. 1990. Kynbótaeinkunnir og erfðaframför hjá Kirjubæjarhrossum [Prediction of breeding values and estimated genetic trend in horses at the Kirkjubaer stud, (in Icelandic, English summary and headings)] Icel. Agr. Sci. 3, 101-112


Sigurdsson, Á. & Árnason, Th. 1990. Skyldleikarækt og áhrif hennar á frjósemi hjá Kirjubæjarhrossum [Inbreeding and it’s effects on fertility in horses at the Kirkjubaer stud, (in Icelandic, English summary and headings)] Icel. Agr. Sci. 3, 89-100


Philipsson, J., Árnason, Th. & Bergsten, K. 1990. Alternative selection strategies for performance of the Swedish Warmblood Horse. Livest. Prod. Sci. 24, 273-285


Hugason, K., Árnason, Th. & Norell, L. 1987. Efficiency of three-stage selection of stallions. J. Anim. Breedg. Genet. 104, 350-363


Andersson, L., Árnason, Th.& Sandberg, K. 1987. Biochemical polymorphism in relation to performance in horses. Theor. Appl. Genet. 73, 419-427


Árnason, Th. & Kassa-Mersha, H. 1987. Genetic parameters of growth of Ethiopian boran cattle. Anim. Prod. 44, 201-208


Árnason, Th. 1987. Contribution of various factors to genetic evaluations of stallions. Livest. Prod. Sci. 16, 407-419


Árnason, Th. 1986. Practical aspects in the estimation of breeding values for multi-trait selection. World Review of Animal Production 22 (4), 75-84


Kassa-Mersha H. & Árnason, Th. 1986. Non-genetic factors affecting growth of Ethiopian Boran cattle. World Review of Animal Production 22 (2), 45-55


Hugason, K. Árnason, Th. & Jónmundsson, J.V. 1985. A note on the fertility and some demographical parameters of Icelandic toelter horses. Livest. Prod. Sci. 12, 161-167


Árnason, Th. 1984. Genetic studies on conformation and performance of Icelandic toelter horses. IV. Best linear unbiased prediction of ten correlated traits by the use of an “animal model”. Acta Agric. Scand 34, 450-462


Árnason, Th. 1984. Genetic studies on conformation and performance of Icelandic toelter horses. III. Study on covariance matrices and breeding objectives by principal component analysis. Acta Agric. Scand. 34, 440-449


Árnason, Th. 1984. Genetic studies on conformation and performance of Icelandic toelter horses II. Construction of multitrait selection indices and modification of covariance matrices by the “bending” method. Acta Agric. Scand. 34, 428-439


Árnason, Th. 1984. Genetic studies on conformation and performance of Icelandic toelter horses. I. Estimation of non-genetic effects and genetic parameters. Acta Agric. Scand. 34, 409-427


Árnason, Th., Darenius, A. & Philipsson, J. 1982. Genetic selection indices for Swedish trotter broodmares. Livest. Prod. Sci. 8, 557-565


Árnason, Th. & Thorsteinsson, S.S. 1982. Genetic studies on carcass traits in Icelandic twin ram lambs. II. Analysis of principal components and construction of selection indices. Livest. Prod. Sci. 8, 507-517

Árnason, Th. 1982. Prediction of breeding values for multiple traits in small non-random mating (horses) populations. Acta Agric. Scand. 32, 171-176


Árnason, Th. 1979. Studies on traits in the Icelandic toelter horses II. Selection index. J.Agr. Res. Icel. 11, 95-102


Árnason, Th. 1979. Studies on traits in the Icelandic toelter horses I. Estimation of some environmental effects and genetic parameters. J. Agr. Res. Icel. 11, 81-93


Conference papers


Árnason, T. 2011. Genetic evaluations, genetic trends and inbreeding in Scandinavian trotter populations. 62nd annual meeting of EAAP, Stavanger, Norway. (Book of Abstracts No 17 pp 132)


Kristjánsson, Árnason, T., Björnsdóttir, Crevier-Denoix, N. & Pourcelot, P. 2011.3-d video morphometric measurements of conformation of the Icelandic horse: estimated means, variation and repeatability of measurements. 62nd annual meeting of EAAP, Stavanger, Norway. (Book of Abstracts No 17 pp 38)


Árnason, T., Albertsdóttir, E., Eriksson, S., Fikse, W.F. & Sigurdsson, Á. 2010. A simulation study of bias in variance component estimation due to ignoring environmental correlation between ‘test-status’ and continuous trait in culled data. 61st annual meeting of EAAP, Stavanger, Norway. (Book of Abstracts No 16 pp 85)


Albertsdóttir, E., Eriksson, S,, Sigurdsson, Á. & Árnason, T. 2009. An all-or-none trait to account for pre-selection in Icelandic horse breeding. 60th annual meeting of EAAP, Barcelona, Spain. (Book of Abstracts No 15 pp 217)


Árnason, Th. & Jónmundsson, J.V. 2007. Multiple trait genetic evaluation of ewe traits in Icelandic sheep. 58th annual meeting of EAAP, Dublin, Ireland. (Book of Abstracts No 13 pp 244)


Árnason, Th. 2007. Prediction of genotype probabilities at eight coat colour loci in the Icelandic horse in mate selection. 58th annual meeting of EAAP, Dublin, Ireland. (Book of Abstracts No 13 pp 155)


Albertsdóttir, E., Eriksson, S., Näsholm, A., Strandberg, E.& Árnason, Th. 2007. Exploring the possibility to include competition traits in the genetic evaluation of Icelandic horses. 58th annual meeting of EAAP, Dublin, Ireland. (Book of Abstracts No 13 pp 152)


Árnason, Th. 2006. Survival analysis of the length of competition life of Standardbred trotters in Sweden. 57th annual meeting of EAAP, Antalya, Turkey. (Book of Abstracts No 12 pp 350)


Árnason, Th., Sigurdsson, Á. & Lorange, J.B. 2006. Global genetic evaluations of the Icelandic Horse and genetic connectedness between countries. Proceedings of the 8th World Congress on Genetics Applied to Livestock Production. Bello Horizonte, Brazil,

August 13-18.2006.

Viklund, A., Philipsson, J. Wikström, A., Árnason, Th., Thorén, E., Nasholm, A., Strandberg, E. & Fredricson, I. 2005. Testing young horses for sport and for genetic evaluations of Swedish riding horses. 56th annual meeting of EAAP, Uppsala, Sweden. (Book of Abstracts No 11. pp 330)


Árnason, Th. & Sigurdsson, Á. 2004. International genetic evaluations of the Icelandic horse. 55th annual meeting of EAAP, Bled, Slovenia. (Book of Abstracts No 10, pp 327)


Árnason, Th., Björnsdóttir, S. & Sigurdsson, Á. 2004. Heritability of bone spavin in Icelandic horses and means of reducing its frequency by genetic selection. Diseases of the Icelandic Horse. An International Symposium 27th –28th June 2004, Selfoss, Iceland. (Abstract in Proceedings pp 21)


Árnason, Th. & Ricard, A. 2001. Methods for international genetic evaluations of sport horses. 52nd annual meeting of EAAP, Budapest, Hungary. (Book of Abstracts No. 7, pp 347).


Árnason, Th. 2001. Inbreeding – Threat to trotting horses? 2001 World Trotting Conference, 6-15th July 2001, Helsinki, Finland.


Árnason, Th. 2000. Trends and asymptotic limits for racing speed in Standardbred trotters. 51st annual meeting of EAAP, The Hague, The Netherlands. (Book of Abstracts No. 6, pp 354).


Árnason, Th.& Sigurdsson, Á. 1998. A computing procedure for estimating genotype probabilities at eight individual colour loci in the Icelandic toelter horse. 49th annual meeting EAAP, Warsaw, Poland. (Book of Abstracts No. 4, pp 322).


Andersson, E., Näsholm, A., Gerber, E. & Árnason, Th. 1998. Inbreeding and its impact on racing performance in Swedish and Norwegian coldblood trotters. 49th annual meeting EAAP, Warsaw, Poland. (Book of Abstracts No. 4 pp 314).


Árnason, Th. 1998. Chairman’s introduction: Horse breeding. Proceedings of the 6th World Congress on Genetics Applied to Livestock production. Vol. 24, Armidale, NSW, Australia, January 11-16,1998, p. 387.


Árnason, Th. 1997. The selection intensity in standardbred trotters in Sweden as measured by BLUP animal model index. 48th annual meeting EAAP, Vienna, Austria, (Book of Abstracts No. 3, pp 380).


Árnason, Th. & Sigurdsson, Á. 1997. Genetic analysis of performance test traits in Icelandic toelter horses in Iceland and Sweden. 48th annual meeting EAAP, Vienna, Austria. (Book of Abstracts No. 3, pp 377).


Sigurdsson, Á., Hugason, K. & Árnason, Th. 1997. Breeding strategies and genetic progress in the Icelandic toelter population. 48th annual meeting EAP, Vienna, Austria. (Book of Abstracts No. 3, pp 377).


Gerber, E., Árnason, Th. & Philipsson, J. 1997. Procedures for genetic evaluation of conformation and performance of riding horses in Sweden. 48th annual meeting EAAP, Vienna, Austria. (Book of Abstracts No. 3, pp 376).


Árnason, Th. 1996. Use of across country genetic evaluations in the operational breeding plan for Icelandic toelter horses in Sweden. 47th annual meeting EAAP, Lillehammer, Norway. (Book of Abstracts No. 2, pp 289).


Gerber, E., Árnason, Th., Stålhammar, H. & Philipsson, J. 1996. Correlations between traits at performance tests of Swedish Warmblood stallions and field recorded traits. 47th annual meeting EAAP, Lillehammer, Norway. (Book of Abstracts No. 2, pp 288).


Árnason, Th. 1996. Selection criterion for increased long-term response in Nordic-trotter. 47th annual meeting EAAP, Lillehammer, Norway. (Book of Abstracts No. 2, pp 285).


Árnason, Th., Klemetsdal, G. & Sigurdsson, Á. 1995. Nordiska hästraser – gamla genresurser ägnade för framtidens behov. (in Swedish) NJF 20th congress, Reykjavik 26-29 June.


Árnason, Th. 1994. Simple (plausible) non-linear model for inheritance of racing speed and corresponding genetic changes from selection. 45th EAAP congress, Edinburgh, Scotland. (abstr. EAAP summaries, p. 360).


Árnason, Th. 1994. The importance of different traits in genetic improvement of trotters. Proceedings of the 5th World Congress on genetics Applied to Livestock Production, Guelph, Canada, August 7-12, 1994, p: 462-470.


Árnason, Th., Bjarnason, Th. 1993. Growth and size of Icelandic toelter horses. EAAP conference on Horse Breeding and Production in Cold Climatic Regions, Reykjavik, Iceland, August 11-13, 1993.


Árnason, Th., Jensen, P., Klemetsdal, G., Ojala, M. & Philipsson, J. 1993. Experience from application of animal breeding theory in Nordic horse breeding. EAAP conference on Horse Breeding and Production in Cold Climatic Regions, Reykjavik, Iceland, August 11-13, 1993.


Árnason, Th. 1993. BLUP Animal Model selection indices for genetic evaluation of trotters in Sweden. 13th Biennial World Trotting Conference, Paris, France, 18-28 June 1993


Árnason, Th. 1992. Use of BLUP-Animal Model evaluation of foals for prediction of future performance in trotters and riding horses. 43rd EAAP congress, Madrid, Spain, 14-17 September 1992. (abstr. EAAP summaries, Vol. 2. p 554-555)


Árnason, Th. 1990. Chairman’s introduction: Breeding for performance traits in horses. Proceeding of the 4th World Congress on Genetics Applied to Livestock production. Vol. XVI, Edinburgh, Scotland, 23-27 July, 1990, p. 181-183

Árnason, Th. & Svendsen, M. 1991. Application of animal model for evaluation of trotters in Scandinavia. 42nd EAAP congress, Berlin, Germany. (abstr. EAAP summaries, Vol. 2. p. 520-521)


Árnason, Th., Bendroth, M., Philipsson, J., Henriksson, K. & Darenius, A. 1989. Genetic evaluations of Swedish trotters. P. 106-130 in State of breeding evaluation in trotters. Proceedings of the EAAP-symposium of the Commission on horse production, Helsinki, Finland, 1 July 1988 (EAAP Publication No. 42, 1989) ed by B. Langlois. 141 pp.


Árnason, Th., Bendroth, M., Philipsson, J., Henriksson, K. & Darenius, A. 1988. Genetic evaluations of Swedish trotters. (abstr.) in Proceedings VI World Conference on Animal Production, Helsinki, Finland p.783


Philipsson, J., Árnason, Th. & Henriksson, K. 1988. L’analyse de donnees des cheaux de selle suedois et les applications dans le plan d’elevage. In proc. Colloque International “Amélioration Génétique du cheval de sport”, CEREOPA - Paris, 9 Mars 1988


Árnason, Th. 1988. Tendances génétiques et de milieu chez le cheval islandais toelter. In proc. Colloque International “Amélioration Génétique du cheval de sport”, CEREOPA - Paris, 9 Mars 1988


Philipsson, J., Árnason, Th. & Henriksson, K. 1987. Analysis of Swedish riding horse data and applications in the breeding program. 38th EAAP congress, Lisbon, Portugal. (abstr. EAAP summaries, Vol.2, p. 1374-1375)

Árnason, Th. 1987. Genetic and environmental trends in Icelandic toelter horses. 38th EAAP congress, Lisbon, Portugal. (abstr. EAAP-summaries, Vol.2, p. 1378-1379)


Árnason, Th., Hugason, K. & Norell, L. 1986. Optimum plans for three-stage selection of stallions. 37th EAAP congress, Budapest, Hungary. (abstr. EAAP summaries, Vol.2, p.322-323


Bendroth, M., Árnason, Th. & Philipsson, J. 1985. Genetic and environmental factors affecting trotting performance of Swedish trotter. 36th EAAP congress, Kallithea, Greece. (abstr. EAAP-summaries, Vol.2, p. 450-451)


Árnason, Th. 1985. Contribution of various factors to genetic evaluations of stallions. 36th EAAP congress , Kallithea, Greece. (abstr. EAAP-summaries, Vol.2, p. 464-465)


Árnason, Th. 1985. Practical aspects in the estimation of breeding values for multi-trait selection. 36th EAAP congress, Kallithea, Greece. (abstr. EAAP-summaries, Vol.1, p. 74-75)


Árnason, Th., Bendroth, M. & Philipsson, J. 1984. Genetic evaluation of Swedish trotter stallions by the BLUP-method. 35th EAAP congress, Hague, Netherlands. (abstr. EAAP summaries, Vol.2, p H.1.6)


Árnason, Th. 1983. Genetic parameters of ten subjectively scored traits in the Icelandic toelter horse. 34th EAAP congress, Madrid, Spain. (abstr. EAAP summaries, Vol.2, p. 832-833)


Árnason, Th. 1983. Prediction of breeding values in horses by the BLUP method. 34th EAAP congress, Madrid, Spain. (abstr. EAAP summaries, Vol.2, p. 816-617)


Árnason, Th. 1983. Procedure for BLUP prediction of two or more correlated traits measured simultaneously in the same animals. 34th EAAP congress, Madrid, Spain. (abstr. EAAP summaries, Vol.1, p. 62-63)


Árnason, Th., Darenius, A., Bendroth, M. & Philipsson, J. 1982. Estimation of breeding values in horses, with an example of use in Swedish trotters. 33rd EAAP congress, Leningrad, USSR


Árnason, Th. 1981. Prediction of breeding values for multiple traits in small non-random mating (horse) populations. 32nd EAAP congress, Zagreb, Yugoslavia


Árnason, Th., Darenius, A. & Philipsson, J. 1980. Genetic studies on the Swedish trotting horse. 31st EAAP congress, Munich, Germany


Árnason, Th. & Thorsteinsson, S.S. 1980. Analysis of the principal components of carcass traits of twin ram lambs and construction of a selection index. (An application of the bending procedure). 31st EAAP congress, Munich, Germany


Árnason, Th. 1980. Genetic studies on the Icelandic toelter horse. 32nd EAAP congress, Munich, Germany


Aðalsteinsson, S. Árnason, Th. 1979. Experience with index selection in Icelandic sheep.

30th EAAP congress, Harrogate, England

Non-refereed articles in Swedish


Ohlson, L., Árnason, Th. & Philipsson, J. 1994. Kvalitetsbedömning av 4-åriga ridhästar – en värdefull varudeklaration. Fakta – Husdjur nr 13. (In Swedish) Swedish University of Agricultural Sciences. pp 4.


Árnason, Th. 1992. Avelsindex - ett värdefullt hjälpmedel för avelsvärdering av travhästar (genetic index – a valuable tool for genetic evaluation of trotters). P. 3-10 in Avelsindex 1992. Swedish Trotting Association (STC), S-161 89 Stockholm, Sweden. 114 pp.


Philipsson, J., Árnason, Th. & Bendroth, M. 1986. Att välja rätt hingst – Avelsforskningen ger bättre metoder. Svensk Hästforskning 2:1, 13-19


Darenius, A., Bendroth, M., Árnason, Th. & Philipsson, J. 1983 Tävlingsstatistik som underlag för genetiska studier av travares “hållbarhet” (Racing records as a basis for genetic studies on “endurance” of trotters). Svensk Veterinärtidning, suppl. 3, 49-51.


Lecture notes


Árnason, Th. 2009. Kynbótaeinkunnir i hrossarækt. Útgáfa 2.0 (2nd edition) Stencil (In Icelandic) IHBC AB, Morgongåva, Sweden. 51 pp.


Árnason, Th. 1995. Inblick i hästavelsteori. Stencil (In Swedish) IHBC AB, Morgongåva, Sweden. 36 pp.


Árnason, Th. 1994. Kynbótaeinkunnir i hrossarækt. Stencil (In Icelandic) IHBC AB, Morgongåva, Sweden. 41 pp.


Árnason, Th. 1983. Þættir um hrossarækt. Stencil (In Icelandic) The Agricultural Collage, Hvanneyri, Iceland. 102 pp.








Time period









17